diff --git a/catalogs/sources/gtfs/schedule/ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329.json b/catalogs/sources/gtfs/schedule/ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329.json
index 059b67b26..4b08b213a 100644
--- a/catalogs/sources/gtfs/schedule/ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329.json
+++ b/catalogs/sources/gtfs/schedule/ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329.json
@@ -17,5 +17,6 @@
     "urls": {
         "direct_download": "https://pubftp.dmt.gov.ae/main.html?download&weblink=18511ae7285412ca93169260c239d119&realfilename=itc-abudhabi-ae_itc-abudhabi-ae_1651205153_itc-abudhabi-ae.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ae-abu-dhabi-emirate-department-of-municipalities-and-transport-gtfs-1329.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/at-unknown-obb-gtfs-2138.json b/catalogs/sources/gtfs/schedule/at-unknown-obb-gtfs-2138.json
index 6f624e313..7f769ee76 100644
--- a/catalogs/sources/gtfs/schedule/at-unknown-obb-gtfs-2138.json
+++ b/catalogs/sources/gtfs/schedule/at-unknown-obb-gtfs-2138.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/at-unknown-obb-gtfs-2138.zip?alt=media",
         "license": "https://data.oebb.at/de/datensaetze~soll-fahrplan-gtfs~"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/au-hobart-skybus-hobart-gtfs-3147.json b/catalogs/sources/gtfs/schedule/au-hobart-skybus-hobart-gtfs-3147.json
index 240ce6523..02a0e371b 100644
--- a/catalogs/sources/gtfs/schedule/au-hobart-skybus-hobart-gtfs-3147.json
+++ b/catalogs/sources/gtfs/schedule/au-hobart-skybus-hobart-gtfs-3147.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/au-hobart-skybus-hobart-gtfs-3147.zip?alt=media"
     },
     "redirect": [],
-    "is_official": "True"
+    "is_official": "True",
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-gtfs-680.json b/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-gtfs-680.json
index 7962ff0b7..d61c29c61 100644
--- a/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-gtfs-680.json
+++ b/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-gtfs-680.json
@@ -20,5 +20,6 @@
         "direct_download": "https://dipl.nt.gov.au/data-feeds/bus-gtfs/google-transit-darwin.zip?v=0.16.0",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/au-northern-territory-department-of-transport-gtfs-680.zip?alt=media",
         "license": "https://dipl.nt.gov.au/data/bus-timetable-data-and-geographic-information"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-public-transport-gtfs-683.json b/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-public-transport-gtfs-683.json
index 65501607d..fe8c1e644 100644
--- a/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-public-transport-gtfs-683.json
+++ b/catalogs/sources/gtfs/schedule/au-northern-territory-department-of-transport-public-transport-gtfs-683.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://dipl.nt.gov.au/data-feeds/bus-gtfs/google-transit-alice-springs.zip?v=0.7.0",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/au-northern-territory-department-of-transport-public-transport-gtfs-683.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/au-victoria-skybus-melbourne-gtfs-3146.json b/catalogs/sources/gtfs/schedule/au-victoria-skybus-melbourne-gtfs-3146.json
index 70206141d..7cbaa318a 100644
--- a/catalogs/sources/gtfs/schedule/au-victoria-skybus-melbourne-gtfs-3146.json
+++ b/catalogs/sources/gtfs/schedule/au-victoria-skybus-melbourne-gtfs-3146.json
@@ -18,5 +18,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/au-victoria-skybus-melbourne-gtfs-3146.zip?alt=media"
     },
     "redirect": [],
-    "is_official": "True"
+    "is_official": "True",
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/br-ceara-metrofor-gtfs-2367.json b/catalogs/sources/gtfs/schedule/br-ceara-metrofor-gtfs-2367.json
index 05cbd7a43..e946207f4 100644
--- a/catalogs/sources/gtfs/schedule/br-ceara-metrofor-gtfs-2367.json
+++ b/catalogs/sources/gtfs/schedule/br-ceara-metrofor-gtfs-2367.json
@@ -20,5 +20,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/br-ceara-metrofor-gtfs-2367.zip?alt=media",
         "license": "https://www.metrofor.ce.gov.br/gtfs/"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/br-fortaleza-fortaleza-gtfs-2934.json b/catalogs/sources/gtfs/schedule/br-fortaleza-fortaleza-gtfs-2934.json
index 1848c2020..f8383397b 100644
--- a/catalogs/sources/gtfs/schedule/br-fortaleza-fortaleza-gtfs-2934.json
+++ b/catalogs/sources/gtfs/schedule/br-fortaleza-fortaleza-gtfs-2934.json
@@ -1,26 +1,27 @@
 {
-  "mdb_source_id": 2934,
-  "data_type": "gtfs",
-  "provider": "Fortaleza",
-  "location": {
-    "country_code": "BR",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2025-12-11 20:47:17.497410+00:00"
+    "mdb_source_id": 2934,
+    "data_type": "gtfs",
+    "provider": "Fortaleza",
+    "location": {
+        "country_code": "BR",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2025-12-11 20:47:17.497410+00:00"
+        },
+        "municipality": "Fortaleza"
     },
-    "municipality": "Fortaleza"
-  },
-  "urls": {
-    "direct_download": "https://dados.fortaleza.ce.gov.br/dataset/d6f1e64c-aca3-4867-8f39-53b7c9c2d211/resource/7058bfbe-5ba2-45f4-9a91-af1508a7c05b/download/arquivo_gtfs_03.10.2025.zip",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/br-fortaleza-fortaleza-gtfs-2934.zip?alt=media",
-    "authentication_type": 0
-  },
-  "name": "ETUFOR",
-  "features": [],
-  "status": "active",
-  "is_official": "True",
-  "redirect": []
+    "urls": {
+        "direct_download": "https://dados.fortaleza.ce.gov.br/dataset/d6f1e64c-aca3-4867-8f39-53b7c9c2d211/resource/7058bfbe-5ba2-45f4-9a91-af1508a7c05b/download/arquivo_gtfs_03.10.2025.zip",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/br-fortaleza-fortaleza-gtfs-2934.zip?alt=media",
+        "authentication_type": 0
+    },
+    "name": "ETUFOR",
+    "features": [],
+    "status": "active",
+    "is_official": "True",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.json b/catalogs/sources/gtfs/schedule/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.json
index b56c204ad..d6b89bd02 100644
--- a/catalogs/sources/gtfs/schedule/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.json
+++ b/catalogs/sources/gtfs/schedule/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.json
@@ -1,28 +1,29 @@
 {
-  "mdb_source_id": 2935,
-  "data_type": "gtfs",
-  "provider": "ARCE - Agência Reguladora do Estado do Ceará",
-  "location": {
-    "country_code": "BR",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2025-12-11 20:47:17.492885+00:00"
+    "mdb_source_id": 2935,
+    "data_type": "gtfs",
+    "provider": "ARCE - Agência Reguladora do Estado do Ceará",
+    "location": {
+        "country_code": "BR",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2025-12-11 20:47:17.492885+00:00"
+        },
+        "subdivision_name": "Região Metropolitana de Fortaleza",
+        "municipality": "Fortaleza"
     },
-    "subdivision_name": "Região Metropolitana de Fortaleza",
-    "municipality": "Fortaleza"
-  },
-  "urls": {
-    "direct_download": "https://www.arce.ce.gov.br/wp-content/uploads/sites/53/2018/11/GTFS_Arce_01082025.zip",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.zip?alt=media",
-    "authentication_type": 0,
-    "license": "https://www.arce.ce.gov.br/download/transportes/"
-  },
-  "name": "Ônibus ARCE",
-  "features": [],
-  "status": "active",
-  "is_official": "True",
-  "redirect": []
+    "urls": {
+        "direct_download": "https://www.arce.ce.gov.br/wp-content/uploads/sites/53/2018/11/GTFS_Arce_01082025.zip",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/br-regiao-metropolitana-de-fortaleza-fortaleza-arce-agencia-gtfs-2935.zip?alt=media",
+        "authentication_type": 0,
+        "license": "https://www.arce.ce.gov.br/download/transportes/"
+    },
+    "name": "Ônibus ARCE",
+    "features": [],
+    "status": "active",
+    "is_official": "True",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/ca-new-brunswick-miramichi-transit-gtfs-1806.json b/catalogs/sources/gtfs/schedule/ca-new-brunswick-miramichi-transit-gtfs-1806.json
index 9e0286ecb..d1307ebbe 100644
--- a/catalogs/sources/gtfs/schedule/ca-new-brunswick-miramichi-transit-gtfs-1806.json
+++ b/catalogs/sources/gtfs/schedule/ca-new-brunswick-miramichi-transit-gtfs-1806.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "http://miramichitransit.ca/GTFS/MT_GTFS_2019.01.29.b.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ca-new-brunswick-miramichi-transit-gtfs-1806.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/ca-saskatchewan-moose-jaw-transit-gtfs-2602.json b/catalogs/sources/gtfs/schedule/ca-saskatchewan-moose-jaw-transit-gtfs-2602.json
index 887647544..4c91039ef 100644
--- a/catalogs/sources/gtfs/schedule/ca-saskatchewan-moose-jaw-transit-gtfs-2602.json
+++ b/catalogs/sources/gtfs/schedule/ca-saskatchewan-moose-jaw-transit-gtfs-2602.json
@@ -10,8 +10,8 @@
         "bounding_box": {
             "minimum_latitude": null,
             "maximum_latitude": null,
-            "minimum_longitude":  null,
-            "maximum_longitude":  null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
             "extracted_on": "2025-04-29T22:06:08+00:00"
         }
     },
@@ -19,5 +19,6 @@
         "direct_download": "https://moosejaw.ca/wp-content/uploads/2023/11/moosejaw-GTFS.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ca-saskatchewan-moose-jaw-transit-gtfs-2602.zip?alt=media",
         "license": "https://moosejaw.ca/streets-roads/transit/"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/ch-unknown-swiss-federal-railways-sbb-gtfs-2898.json b/catalogs/sources/gtfs/schedule/ch-unknown-swiss-federal-railways-sbb-gtfs-2898.json
index 16301bbc7..52f875e8f 100644
--- a/catalogs/sources/gtfs/schedule/ch-unknown-swiss-federal-railways-sbb-gtfs-2898.json
+++ b/catalogs/sources/gtfs/schedule/ch-unknown-swiss-federal-railways-sbb-gtfs-2898.json
@@ -19,5 +19,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ch-unknown-swiss-federal-railways-sbb-gtfs-2898.zip?alt=media",
         "license": "https://opentransportdata.swiss/en/terms-of-use/#Definitions"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/ci-abidjan-divers-operateurs-gtfs-2078.json b/catalogs/sources/gtfs/schedule/ci-abidjan-divers-operateurs-gtfs-2078.json
index 0116aa656..f1381b902 100644
--- a/catalogs/sources/gtfs/schedule/ci-abidjan-divers-operateurs-gtfs-2078.json
+++ b/catalogs/sources/gtfs/schedule/ci-abidjan-divers-operateurs-gtfs-2078.json
@@ -18,5 +18,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ci-abidjan-divers-operateurs-gtfs-2078.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/cl-coquimbo-liserco-gtfs-561.json b/catalogs/sources/gtfs/schedule/cl-coquimbo-liserco-gtfs-561.json
index e7921767a..5614ea373 100644
--- a/catalogs/sources/gtfs/schedule/cl-coquimbo-liserco-gtfs-561.json
+++ b/catalogs/sources/gtfs/schedule/cl-coquimbo-liserco-gtfs-561.json
@@ -17,5 +17,6 @@
     "urls": {
         "direct_download": "http://datos.gob.cl/dataset/c77c9a50-6dd1-449d-b5ab-947ec0139b31/resource/a4edcf07-0657-456d-bbbc-54b2aec1de8d/download/coquimbo10feb16.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/cl-coquimbo-liserco-gtfs-561.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/cl-la-araucania-temuco-gtfs-1864.json b/catalogs/sources/gtfs/schedule/cl-la-araucania-temuco-gtfs-1864.json
index 2bd3b4ea2..f16eecb94 100644
--- a/catalogs/sources/gtfs/schedule/cl-la-araucania-temuco-gtfs-1864.json
+++ b/catalogs/sources/gtfs/schedule/cl-la-araucania-temuco-gtfs-1864.json
@@ -17,5 +17,6 @@
     "urls": {
         "direct_download": "http://datos.gob.cl/dataset/cef4c471-2837-412b-a78e-1d4c6a261bf9/resource/7887a7e7-9af6-4fc8-b19f-8ff4ea474d1c/download/temuco24nov16.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/cl-la-araucania-temuco-gtfs-1864.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/cl-maule-talca-gtfs-1866.json b/catalogs/sources/gtfs/schedule/cl-maule-talca-gtfs-1866.json
index 08e908972..db80ab9d1 100644
--- a/catalogs/sources/gtfs/schedule/cl-maule-talca-gtfs-1866.json
+++ b/catalogs/sources/gtfs/schedule/cl-maule-talca-gtfs-1866.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://datos.gob.cl/dataset/22fa7b82-50ec-4c85-aa89-709a8e0dd268/resource/f4526a2f-dd8e-4943-ab12-be997ce04fbb/download/talca1sep16.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/cl-maule-talca-gtfs-1866.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/cl-o'higgins-rancagua-talca-gtfs-1865.json b/catalogs/sources/gtfs/schedule/cl-o'higgins-rancagua-talca-gtfs-1865.json
index 0474a47da..0d9426b9f 100644
--- a/catalogs/sources/gtfs/schedule/cl-o'higgins-rancagua-talca-gtfs-1865.json
+++ b/catalogs/sources/gtfs/schedule/cl-o'higgins-rancagua-talca-gtfs-1865.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "http://datos.gob.cl/dataset/22cb7071-34f2-46dc-8c2d-dd9b86e9c32f/resource/65b65c20-a4ab-4cca-ba55-d2ef5bbb9605/download/rancagua1feb16.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/cl-o'higgins-rancagua-gtfs-1865.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/cl-region-metropolitana-de-santiago-direccion-de-transporte-metropolitano-dtpm-gtfs-3357.json b/catalogs/sources/gtfs/schedule/cl-region-metropolitana-de-santiago-direccion-de-transporte-metropolitano-dtpm-gtfs-3357.json
index acb7c7478..21eeebd57 100644
--- a/catalogs/sources/gtfs/schedule/cl-region-metropolitana-de-santiago-direccion-de-transporte-metropolitano-dtpm-gtfs-3357.json
+++ b/catalogs/sources/gtfs/schedule/cl-region-metropolitana-de-santiago-direccion-de-transporte-metropolitano-dtpm-gtfs-3357.json
@@ -21,5 +21,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/cl-region-metropolitana-de-santiago-direccion-de-transporte-metropolitano-dtpm-gtfs-3357.zip?alt=media",
         "license": "https://www.dtpm.cl/index.php/gtfs-vigente"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/co-distrito-capital-de-bogota-simur-bogota-gtfs-3358.json b/catalogs/sources/gtfs/schedule/co-distrito-capital-de-bogota-simur-bogota-gtfs-3358.json
index 01f755dbb..a2e341eb1 100644
--- a/catalogs/sources/gtfs/schedule/co-distrito-capital-de-bogota-simur-bogota-gtfs-3358.json
+++ b/catalogs/sources/gtfs/schedule/co-distrito-capital-de-bogota-simur-bogota-gtfs-3358.json
@@ -19,5 +19,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/co-distrito-capital-de-bogota-simur-bogota-gtfs-3358.zip?alt=media",
         "license": "http://www.simur.gov.co/gtfs"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/de-germany-verkehrsverbund-rhein-ruhr-gtfs-2651.json b/catalogs/sources/gtfs/schedule/de-germany-verkehrsverbund-rhein-ruhr-gtfs-2651.json
index 7c1f33528..c47402fe0 100644
--- a/catalogs/sources/gtfs/schedule/de-germany-verkehrsverbund-rhein-ruhr-gtfs-2651.json
+++ b/catalogs/sources/gtfs/schedule/de-germany-verkehrsverbund-rhein-ruhr-gtfs-2651.json
@@ -18,5 +18,6 @@
         "direct_download": "https://www.opendata-oepnv.de/dataset/496eea5d-d6ef-4dc2-aeb0-d15c4fbf3178/resource/773be6b9-daec-4c39-971a-c9e5668f148b/download/20250508_gtfs_vrr_od.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/de-germany-verkehrsverbund-rhein-ruhr-gtfs-2651.zip?alt=media",
         "license": "https://www.opendata-oepnv.de/ht/de/organisation/verkehrsverbuende/vrr/startseite?tx_vrrkit_view%5Baction%5D=details&tx_vrrkit_view%5Bcontroller%5D=View&tx_vrrkit_view%5Bdataset_name%5D=soll-fahrplandaten-vrr&cHash=02c1406b5f625dd48a64d0dd29805e2c"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/de-hamburg-hamburger-verkehrsverbund-gmbh-hvv-gtfs-3362.json b/catalogs/sources/gtfs/schedule/de-hamburg-hamburger-verkehrsverbund-gmbh-hvv-gtfs-3362.json
index 588af94d6..9b0564c67 100644
--- a/catalogs/sources/gtfs/schedule/de-hamburg-hamburger-verkehrsverbund-gmbh-hvv-gtfs-3362.json
+++ b/catalogs/sources/gtfs/schedule/de-hamburg-hamburger-verkehrsverbund-gmbh-hvv-gtfs-3362.json
@@ -21,5 +21,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/de-hamburg-hamburger-verkehrsverbund-gmbh-hvv-gtfs-3362.zip?alt=media",
         "license": "https://www.govdata.de/dl-de/by-2-0"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/es-baleares-santa-eulalia-del-rio-gtfs-2923.json b/catalogs/sources/gtfs/schedule/es-baleares-santa-eulalia-del-rio-gtfs-2923.json
index 5d097963a..ba53b6ae1 100644
--- a/catalogs/sources/gtfs/schedule/es-baleares-santa-eulalia-del-rio-gtfs-2923.json
+++ b/catalogs/sources/gtfs/schedule/es-baleares-santa-eulalia-del-rio-gtfs-2923.json
@@ -1,28 +1,29 @@
 {
-  "mdb_source_id": 2923,
-  "data_type": "gtfs",
-  "provider": "Santa Eulalia Ferry",
-  "location": {
-    "country_code": "ES",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2025-12-08 23:23:44.098460+00:00"
+    "mdb_source_id": 2923,
+    "data_type": "gtfs",
+    "provider": "Santa Eulalia Ferry",
+    "location": {
+        "country_code": "ES",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2025-12-08 23:23:44.098460+00:00"
+        },
+        "subdivision_name": "Baleares",
+        "municipality": "Santa Eulalia del Río"
     },
-    "subdivision_name": "Baleares",
-    "municipality": "Santa Eulalia del Río"
-  },
-  "urls": {
-    "direct_download": "https://www.santaeulaliaferry.com/gtfs_feed_2025.zip",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/es-baleares-santa-eulalia-del-rio-gtfs-2923.zip?alt=media",
-    "authentication_type": 0
-  },
-  "name": "Santa Eulalia Cityboat",
-  "feed_contact_email": "info@santaeulaliaferry.com",
-  "features": [],
-  "status": "active",
-  "is_official": "True",
-  "redirect": []
+    "urls": {
+        "direct_download": "https://www.santaeulaliaferry.com/gtfs_feed_2025.zip",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/es-baleares-santa-eulalia-del-rio-gtfs-2923.zip?alt=media",
+        "authentication_type": 0
+    },
+    "name": "Santa Eulalia Cityboat",
+    "feed_contact_email": "info@santaeulaliaferry.com",
+    "features": [],
+    "status": "active",
+    "is_official": "True",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/fr-bourgogne-franche-comte-diviamobilites-gtfs-2153.json b/catalogs/sources/gtfs/schedule/fr-bourgogne-franche-comte-diviamobilites-gtfs-2153.json
index d7d869d3e..b9d896b40 100644
--- a/catalogs/sources/gtfs/schedule/fr-bourgogne-franche-comte-diviamobilites-gtfs-2153.json
+++ b/catalogs/sources/gtfs/schedule/fr-bourgogne-franche-comte-diviamobilites-gtfs-2153.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-bourgogne-franche-comte-diviamobilites-gtfs-2153.zip?alt=media",
         "license": "https://www.etalab.gouv.fr/licence-ouverte-open-licence/"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2627.json b/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2627.json
index 301db546c..394f3f703 100644
--- a/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2627.json
+++ b/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2627.json
@@ -20,5 +20,6 @@
         "direct_download": "https://static.data.gouv.fr/resources/donnees-tcat-troyes-champagne-metropole-1/20250428-121833/gtfs-navineo.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2627.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/donnees-tcat-troyes-champagne-metropole-1"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2628.json b/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2628.json
index cfda9fca6..8229c4bcd 100644
--- a/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2628.json
+++ b/catalogs/sources/gtfs/schedule/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2628.json
@@ -19,5 +19,6 @@
         "direct_download": "https://static.data.gouv.fr/resources/donnees-tcat-troyes-champagne-metropole-1/20250424-134618/gtfs.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-grand-est-troyes-champagne-metropole-tcat-gtfs-2628.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/donnees-tcat-troyes-champagne-metropole-1"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-amiens-metropole-gtfs-1988.json b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-amiens-metropole-gtfs-1988.json
index 848583eae..70596485a 100644
--- a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-amiens-metropole-gtfs-1988.json
+++ b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-amiens-metropole-gtfs-1988.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/80705/80705.20240117.090826.898613.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-hauts-de-france-communaute-d'agglomeration-amiens-metropole-gtfs-1988.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/ametis"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-du-pays-de-saint-omer-gtfs-1989.json b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-du-pays-de-saint-omer-gtfs-1989.json
index 5e6ce4cbb..5026392ad 100644
--- a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-du-pays-de-saint-omer-gtfs-1989.json
+++ b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-d'agglomeration-du-pays-de-saint-omer-gtfs-1989.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/81457/81457.20231230.060844.417532.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-hauts-de-france-communaute-d'agglomeration-du-pays-de-saint-omer-gtfs-1989.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/transports-en-commun-audomarois-1"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-urbaine-de-dunkerque-reseau-dk-bus-gtfs-1990.json b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-urbaine-de-dunkerque-reseau-dk-bus-gtfs-1990.json
index feee31cff..ccfbf2fc1 100644
--- a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-urbaine-de-dunkerque-reseau-dk-bus-gtfs-1990.json
+++ b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-communaute-urbaine-de-dunkerque-reseau-dk-bus-gtfs-1990.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/81377/81377.20231227.061215.032973.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-hauts-de-france-communaute-urbaine-de-dunkerque-reseau-dk-bus-gtfs-1990.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/offre-de-transports-reseau-dk-bus-de-la-communaute-urbaine-de-dunkerque-gtfs"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-ilevia-reseau-de-transport-transpole-de-la-metropole-europeenne-de-lille-gtfs-2152.json b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-ilevia-reseau-de-transport-transpole-de-la-metropole-europeenne-de-lille-gtfs-2152.json
index 4fb99c64e..bbc2d71aa 100644
--- a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-ilevia-reseau-de-transport-transpole-de-la-metropole-europeenne-de-lille-gtfs-2152.json
+++ b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-ilevia-reseau-de-transport-transpole-de-la-metropole-europeenne-de-lille-gtfs-2152.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-hauts-de-france-ilevia-reseau-de-transport-transpole-de-la-metropole-europeenne-de-lille-gtfs-2152.zip?alt=media",
         "license": "https://www.etalab.gouv.fr/licence-ouverte-open-licence/"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-pastel-gtfs-1998.json b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-pastel-gtfs-1998.json
index 24336cd79..1442a4e39 100644
--- a/catalogs/sources/gtfs/schedule/fr-hauts-de-france-pastel-gtfs-1998.json
+++ b/catalogs/sources/gtfs/schedule/fr-hauts-de-france-pastel-gtfs-1998.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/81589/81589.20240202.094639.078502.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-hauts-de-france-pastel-gtfs-1998.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-hiver-2023-2024"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-ile-de-france-star-gtfs-1159.json b/catalogs/sources/gtfs/schedule/fr-ile-de-france-star-gtfs-1159.json
index 60df33d73..a41b37d1a 100644
--- a/catalogs/sources/gtfs/schedule/fr-ile-de-france-star-gtfs-1159.json
+++ b/catalogs/sources/gtfs/schedule/fr-ile-de-france-star-gtfs-1159.json
@@ -21,5 +21,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-ile-de-france-star-gtfs-1159.zip?alt=media",
         "license": "https://doc.transport.data.gouv.fr/presentation-et-mode-demploi-du-pan/conditions-dutilisation-des-donnees/licence-odbl"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-normandie-hobus-gtfs-2685.json b/catalogs/sources/gtfs/schedule/fr-normandie-hobus-gtfs-2685.json
index 8c6fb70ec..a47b1d9dc 100644
--- a/catalogs/sources/gtfs/schedule/fr-normandie-hobus-gtfs-2685.json
+++ b/catalogs/sources/gtfs/schedule/fr-normandie-hobus-gtfs-2685.json
@@ -19,5 +19,6 @@
         "direct_download": "https://static.data.gouv.fr/resources/hobus-honfleur/20250110-080454/pt-th-offer-hobus-gtfs-20250109-812-opendata.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-normandie-hobus-gtfs-2685.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/hobus-honfleur"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-nouvelle-aquitaine-stga---reseau-mobius-gtfs-2002.json b/catalogs/sources/gtfs/schedule/fr-nouvelle-aquitaine-stga---reseau-mobius-gtfs-2002.json
index beb17704f..9736874ea 100644
--- a/catalogs/sources/gtfs/schedule/fr-nouvelle-aquitaine-stga---reseau-mobius-gtfs-2002.json
+++ b/catalogs/sources/gtfs/schedule/fr-nouvelle-aquitaine-stga---reseau-mobius-gtfs-2002.json
@@ -19,5 +19,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/79752/79752.20231005.100848.400086.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-nouvelle-aquitaine-stga---reseau-mobius-gtfs-2002.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-theoriques-et-temps-reel-reseau-mobius"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-impulsyon-gtfs-2005.json b/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-impulsyon-gtfs-2005.json
index 596003586..aeeeac126 100644
--- a/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-impulsyon-gtfs-2005.json
+++ b/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-impulsyon-gtfs-2005.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/79520/79520.20240125.180808.025916.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-pays-de-la-loire-impulsyon-gtfs-2005.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/reseau-de-transport-impulsyon-a-la-roche-sur-yon"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-irigo-gtfs-2007.json b/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-irigo-gtfs-2007.json
index 2d62a2876..b0818c513 100644
--- a/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-irigo-gtfs-2007.json
+++ b/catalogs/sources/gtfs/schedule/fr-pays-de-la-loire-irigo-gtfs-2007.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/80036/80036.20240213.060926.502564.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-pays-de-la-loire-irigo-gtfs-2007.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/angers-loire-metropole-reseau-irigo-gtfs-gtfs-rt-siri"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-ca-du-pays-de-grasse-gtfs-2004.json b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-ca-du-pays-de-grasse-gtfs-2004.json
index 49dd8d4da..7bed1de6f 100644
--- a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-ca-du-pays-de-grasse-gtfs-2004.json
+++ b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-ca-du-pays-de-grasse-gtfs-2004.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/79822/79822.20230921.151241.357814.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-provence-alpes-cote-d'azur-ca-du-pays-de-grasse-gtfs-2004.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/lignes-regulieres-de-transports-sillages-en-pays-de-grasse-urbain-et-scolaire"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-palmbus-gtfs-2003.json b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-palmbus-gtfs-2003.json
index 0cc409157..47daffcd0 100644
--- a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-palmbus-gtfs-2003.json
+++ b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-d'azur-palmbus-gtfs-2003.json
@@ -18,5 +18,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/79420/79420.20240125.160818.158371.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-provence-alpes-cote-d'azur-palmbus-gtfs-2003.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-theoriques-et-temps-reel-gtfs-gtfs-rt-du-reseau-palmbus-cannes-pays-de-lerins"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-dazur-grasse-sillages-scolaire-gtfs-996.json b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-dazur-grasse-sillages-scolaire-gtfs-996.json
index 02a4e04d8..e968ded70 100644
--- a/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-dazur-grasse-sillages-scolaire-gtfs-996.json
+++ b/catalogs/sources/gtfs/schedule/fr-provence-alpes-cote-dazur-grasse-sillages-scolaire-gtfs-996.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://static.data.gouv.fr/resources/lignes-regulieres-de-transports-en-pays-de-grasse/20210203-152443/20210101-gtfs-sillagesscolaire.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-provence-alpes-cote-dazur-grasse-sillages-scolaire-gtfs-996.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/fr-rhone-transports-en-commun-lyonnais-tcl-gtfs-2006.json b/catalogs/sources/gtfs/schedule/fr-rhone-transports-en-commun-lyonnais-tcl-gtfs-2006.json
index 55a5512e9..171307fc9 100644
--- a/catalogs/sources/gtfs/schedule/fr-rhone-transports-en-commun-lyonnais-tcl-gtfs-2006.json
+++ b/catalogs/sources/gtfs/schedule/fr-rhone-transports-en-commun-lyonnais-tcl-gtfs-2006.json
@@ -17,5 +17,6 @@
         "direct_download": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/c6a3d03f-f8e4-44f3-9e7d-fcaf1ab30b92/c6a3d03f-f8e4-44f3-9e7d-fcaf1ab30b92.20220415.060247.709832.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-rhone-transports-en-commun-lyonnais-tcl-gtfs-2006.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-theoriques-du-reseau-transports-en-commun-lyonnais"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-royan-carabus-gtfs-2842.json b/catalogs/sources/gtfs/schedule/fr-royan-carabus-gtfs-2842.json
index 9d5deecbe..192348332 100644
--- a/catalogs/sources/gtfs/schedule/fr-royan-carabus-gtfs-2842.json
+++ b/catalogs/sources/gtfs/schedule/fr-royan-carabus-gtfs-2842.json
@@ -19,5 +19,6 @@
         "direct_download": "https://data.agglo-royan.fr/dataset/9b761974-a195-4e33-91b7-ecee3b368016/resource/d4915904-ebd0-43cf-9b35-fbfc04ce91fd/download/gtfs_20250613_092554_tdra.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-royan-carabus-gtfs-2842.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/donnees-gtfs-du-reseau-de-transport-public-cara-bus"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-rv-mobilites-gtfs-2404.json b/catalogs/sources/gtfs/schedule/fr-rv-mobilites-gtfs-2404.json
index 0bacaf8ba..a0171477f 100644
--- a/catalogs/sources/gtfs/schedule/fr-rv-mobilites-gtfs-2404.json
+++ b/catalogs/sources/gtfs/schedule/fr-rv-mobilites-gtfs-2404.json
@@ -2,7 +2,7 @@
     "mdb_source_id": 2404,
     "data_type": "gtfs",
     "provider": "RLV Mobilités",
-    "is_official": "True", 
+    "is_official": "True",
     "location": {
         "country_code": "FR",
         "subdivision_name": "Riom Limagne et Volcans",
@@ -18,5 +18,6 @@
         "direct_download": "https://static.data.gouv.fr/resources/donnees-gtfs-1/20241119-134820/gtfs-24-10-14-au-25-08-31.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-occitanie-tum-gtfs-1893.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-rlv-mobilites"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-sens-intercom-gtfs-2626.json b/catalogs/sources/gtfs/schedule/fr-sens-intercom-gtfs-2626.json
index eb3bc85c5..25a696f0c 100644
--- a/catalogs/sources/gtfs/schedule/fr-sens-intercom-gtfs-2626.json
+++ b/catalogs/sources/gtfs/schedule/fr-sens-intercom-gtfs-2626.json
@@ -22,5 +22,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-sens-intercom-gtfs-2626.zip?alt=media",
         "license": "https://transport.data.gouv.fr/datasets/horaires-du-reseau-de-bus-intercom-3"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/fr-unknown-mat-mobilites-gtfs-2139.json b/catalogs/sources/gtfs/schedule/fr-unknown-mat-mobilites-gtfs-2139.json
index 864e1337a..03405e8d2 100644
--- a/catalogs/sources/gtfs/schedule/fr-unknown-mat-mobilites-gtfs-2139.json
+++ b/catalogs/sources/gtfs/schedule/fr-unknown-mat-mobilites-gtfs-2139.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/fr-unknown-mat-mobilites-gtfs-2139.zip?alt=media",
         "license": "https://transport-data-gouv-fr-resource-history-prod.cellar-c2.services.clever-cloud.com/43126/43126.20240709.120931.048325.zip"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/hr-gradski-parking-gtfs-2910.json b/catalogs/sources/gtfs/schedule/hr-gradski-parking-gtfs-2910.json
index d694fcb27..beba0e22c 100644
--- a/catalogs/sources/gtfs/schedule/hr-gradski-parking-gtfs-2910.json
+++ b/catalogs/sources/gtfs/schedule/hr-gradski-parking-gtfs-2910.json
@@ -1,24 +1,25 @@
 {
-  "mdb_source_id": 2910,
-  "data_type": "gtfs",
-  "provider": "Gradski parking d.o.o.",
-  "location": {
-    "country_code": "HR",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2025-11-28 16:20:24.178373+00:00"
-    }
-  },
-  "urls": {
-    "direct_download": "https://www.gradski-parking.hr/upload/stranice/2022/08/2022-08-30/89/gtfs.zip",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/hr-gradski-parking-gtfs-2910.zip?alt=media",
-    "authentication_type": 0
-  },
-  "features": [],
-  "status": "active",
-  "is_official": "True",
-  "redirect": []
+    "mdb_source_id": 2910,
+    "data_type": "gtfs",
+    "provider": "Gradski parking d.o.o.",
+    "location": {
+        "country_code": "HR",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2025-11-28 16:20:24.178373+00:00"
+        }
+    },
+    "urls": {
+        "direct_download": "https://www.gradski-parking.hr/upload/stranice/2022/08/2022-08-30/89/gtfs.zip",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/hr-gradski-parking-gtfs-2910.zip?alt=media",
+        "authentication_type": 0
+    },
+    "features": [],
+    "status": "active",
+    "is_official": "True",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/in-delhi-delhi-transport-corporation-gtfs-3139.json b/catalogs/sources/gtfs/schedule/in-delhi-delhi-transport-corporation-gtfs-3139.json
index 07353d848..5b74764f2 100644
--- a/catalogs/sources/gtfs/schedule/in-delhi-delhi-transport-corporation-gtfs-3139.json
+++ b/catalogs/sources/gtfs/schedule/in-delhi-delhi-transport-corporation-gtfs-3139.json
@@ -18,5 +18,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/in-delhi-delhi-transport-corporation-gtfs-3139.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/in-gujarat-vapi-city-bus-service-gtfs-3426.json b/catalogs/sources/gtfs/schedule/in-gujarat-vapi-city-bus-service-gtfs-3426.json
index 04dbf899e..52aee9349 100644
--- a/catalogs/sources/gtfs/schedule/in-gujarat-vapi-city-bus-service-gtfs-3426.json
+++ b/catalogs/sources/gtfs/schedule/in-gujarat-vapi-city-bus-service-gtfs-3426.json
@@ -19,5 +19,6 @@
         "direct_download": "https://github.com/shubhamvelani/VapiGTFS/releases/download/v1.0.0/Vapi_GTFS.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/in-gujarat-vapi-city-bus-service-gtfs-3426.zip?alt=media",
         "license": "https://github.com/shubhamvelani/VapiGTFS/"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/in-hyderabad-bus-gtfs-3361.json b/catalogs/sources/gtfs/schedule/in-hyderabad-bus-gtfs-3361.json
index 2bb749e91..b4d231492 100644
--- a/catalogs/sources/gtfs/schedule/in-hyderabad-bus-gtfs-3361.json
+++ b/catalogs/sources/gtfs/schedule/in-hyderabad-bus-gtfs-3361.json
@@ -19,5 +19,6 @@
         "direct_download": "https://data.opencity.in/dataset/88e2d145-7ec6-4666-88dd-6cf18b18312e/resource/1b0d18bb-b2fb-4a79-8ed0-1e071da5790c/download/telangana_opendata_gtfs_tgsrtc_08_february_2026.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/in-hyderabad-bus-gtfs-3361.zip?alt=media",
         "license": "https://hmrl.co.in/open-data.html"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/it-bologna-tper-bus-gtfs-3040.json b/catalogs/sources/gtfs/schedule/it-bologna-tper-bus-gtfs-3040.json
index 99874b4d8..de1cec2b8 100644
--- a/catalogs/sources/gtfs/schedule/it-bologna-tper-bus-gtfs-3040.json
+++ b/catalogs/sources/gtfs/schedule/it-bologna-tper-bus-gtfs-3040.json
@@ -21,5 +21,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/it-bologna-tper-bus-gtfs-3040.zip?alt=media",
         "license": "https://solweb.tper.it/web/tools/open-data/open-data.aspx"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/it-bologna-tper-ferrara-gtfs-3042.json b/catalogs/sources/gtfs/schedule/it-bologna-tper-ferrara-gtfs-3042.json
index 6b16d7ebf..1c3e4fc3e 100644
--- a/catalogs/sources/gtfs/schedule/it-bologna-tper-ferrara-gtfs-3042.json
+++ b/catalogs/sources/gtfs/schedule/it-bologna-tper-ferrara-gtfs-3042.json
@@ -21,5 +21,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/it-bologna-tper-ferrara-gtfs-3042.zip?alt=media",
         "license": "https://solweb.tper.it/web/tools/open-data/open-data.aspx"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/it-bologna-tper-marconi-gtfs-3041.json b/catalogs/sources/gtfs/schedule/it-bologna-tper-marconi-gtfs-3041.json
index 6bc4c3fe7..8b1eb6c3d 100644
--- a/catalogs/sources/gtfs/schedule/it-bologna-tper-marconi-gtfs-3041.json
+++ b/catalogs/sources/gtfs/schedule/it-bologna-tper-marconi-gtfs-3041.json
@@ -21,5 +21,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/it-bologna-tper-marconi-gtfs-3041.zip?alt=media",
         "license": "https://solweb.tper.it/web/tools/open-data/open-data.aspx"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/it-metropolitana-di-catania-ferrovia-circumetnea-gtfs-3124.json b/catalogs/sources/gtfs/schedule/it-metropolitana-di-catania-ferrovia-circumetnea-gtfs-3124.json
index ab9318dcd..9506319c0 100644
--- a/catalogs/sources/gtfs/schedule/it-metropolitana-di-catania-ferrovia-circumetnea-gtfs-3124.json
+++ b/catalogs/sources/gtfs/schedule/it-metropolitana-di-catania-ferrovia-circumetnea-gtfs-3124.json
@@ -21,5 +21,6 @@
         "direct_download": "https://www.circumetnea.it/download/general-transit-feed-specification-fce-01-02-2025-28-02-2028/?wpdmdl=17798&refresh=69c2e93fcbfb51774381375",
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/it-metropolitana-di-catania-ferrovia-circumetnea-gtfs-3124.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/jp-okinawa-prefecture-kumejima-ocean-jet-co-gtfs-3185.json b/catalogs/sources/gtfs/schedule/jp-okinawa-prefecture-kumejima-ocean-jet-co-gtfs-3185.json
index 2a0ebfbb0..445be10f4 100644
--- a/catalogs/sources/gtfs/schedule/jp-okinawa-prefecture-kumejima-ocean-jet-co-gtfs-3185.json
+++ b/catalogs/sources/gtfs/schedule/jp-okinawa-prefecture-kumejima-ocean-jet-co-gtfs-3185.json
@@ -18,5 +18,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/jp-okinawa-prefecture-kumejima-ocean-jet-co-gtfs-3185.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/mexico-jalisco-direccion-general-de-transporte-publico-de-puerto-vallarta-gtfs-2034.json b/catalogs/sources/gtfs/schedule/mexico-jalisco-direccion-general-de-transporte-publico-de-puerto-vallarta-gtfs-2034.json
index 9de6ba61d..4f9568fee 100644
--- a/catalogs/sources/gtfs/schedule/mexico-jalisco-direccion-general-de-transporte-publico-de-puerto-vallarta-gtfs-2034.json
+++ b/catalogs/sources/gtfs/schedule/mexico-jalisco-direccion-general-de-transporte-publico-de-puerto-vallarta-gtfs-2034.json
@@ -22,5 +22,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/mexico-jalisco-direccion-general-de-transporte-publico-de-puerto-vallarta-gtfs-2034.zip?alt=media",
         "license": "https://datos.jalisco.gob.mx/dataset/rutas-del-nuevo-modelo-mitransporte-en-puerto-vallarta"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/ml-bamako-somatra-gtfs-1807.json b/catalogs/sources/gtfs/schedule/ml-bamako-somatra-gtfs-1807.json
index 366c487bb..18e75a8a8 100644
--- a/catalogs/sources/gtfs/schedule/ml-bamako-somatra-gtfs-1807.json
+++ b/catalogs/sources/gtfs/schedule/ml-bamako-somatra-gtfs-1807.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://gitlab.com/digitaltransport/data/africa/bamako/-/raw/main/gtfs_Public_Transport_Bamako_Sotrama_01_01_2020_06_42_48.zip?inline=false",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/ml-bamako-somatra-gtfs-1807.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/mx-guadalajara-mi-transporte-gtfs-2366.json b/catalogs/sources/gtfs/schedule/mx-guadalajara-mi-transporte-gtfs-2366.json
index a87b0f5a4..ed3eb3b87 100644
--- a/catalogs/sources/gtfs/schedule/mx-guadalajara-mi-transporte-gtfs-2366.json
+++ b/catalogs/sources/gtfs/schedule/mx-guadalajara-mi-transporte-gtfs-2366.json
@@ -20,5 +20,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/mx-guadalajara-mi-transporte-gtfs-2366.zip?alt=media",
         "license": "https://datos.jalisco.gob.mx/dataset/actualizacion-de-rutas-de-transporte-publico-colectivo-y-masivo-en-la-zona-metropolitana-de"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/pl-dolnoslaskie-sevibusdla-dlugoleka-gtfs-979.json b/catalogs/sources/gtfs/schedule/pl-dolnoslaskie-sevibusdla-dlugoleka-gtfs-979.json
index 1b3060c68..34972547b 100644
--- a/catalogs/sources/gtfs/schedule/pl-dolnoslaskie-sevibusdla-dlugoleka-gtfs-979.json
+++ b/catalogs/sources/gtfs/schedule/pl-dolnoslaskie-sevibusdla-dlugoleka-gtfs-979.json
@@ -18,5 +18,6 @@
         "direct_download": "https://www.wroclaw.pl/open-data/87b09b32-f076-4475-8ec9-6020ed1f9ac0/1513602900.0_OtwartyWroclaw_rozklad_jazdy_GTFS.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pl-dolnoslaskie-sevibusdla-dlugoleka-gtfs-979.zip?alt=media",
         "license": "http://www.wroclaw.pl/open-data/index.php/warunki-korzystania"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/pl-kalisz-pks-kalisz-gtfs-2461.json b/catalogs/sources/gtfs/schedule/pl-kalisz-pks-kalisz-gtfs-2461.json
index 51e4a827e..485a10cb9 100644
--- a/catalogs/sources/gtfs/schedule/pl-kalisz-pks-kalisz-gtfs-2461.json
+++ b/catalogs/sources/gtfs/schedule/pl-kalisz-pks-kalisz-gtfs-2461.json
@@ -19,5 +19,6 @@
         "direct_download": "https://pks.kalisz.pl/wp-content/uploads/2024/10/PKS_20240927.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pl-kalisz-pks-kalisz-gtfs-2461.zip?alt=media",
         "license": "https://pks.kalisz.pl/gtfs/"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/pl-warminsko-mazurskie-zdzit-olsztyn-gtfs-1175.json b/catalogs/sources/gtfs/schedule/pl-warminsko-mazurskie-zdzit-olsztyn-gtfs-1175.json
index 3f3e9653b..873de084a 100644
--- a/catalogs/sources/gtfs/schedule/pl-warminsko-mazurskie-zdzit-olsztyn-gtfs-1175.json
+++ b/catalogs/sources/gtfs/schedule/pl-warminsko-mazurskie-zdzit-olsztyn-gtfs-1175.json
@@ -21,5 +21,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pl-warminsko-mazurskie-zdzit-olsztyn-gtfs-1175.zip?alt=media",
         "license": "https://www.zdzit.olsztyn.eu/pl/transport-publiczny/dane-rozkladowe"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/pt-lisboa-carris-gtfs-2929.json b/catalogs/sources/gtfs/schedule/pt-lisboa-carris-gtfs-2929.json
index d03e48aef..1fa5d041d 100644
--- a/catalogs/sources/gtfs/schedule/pt-lisboa-carris-gtfs-2929.json
+++ b/catalogs/sources/gtfs/schedule/pt-lisboa-carris-gtfs-2929.json
@@ -1,27 +1,28 @@
 {
-  "mdb_source_id": 2929,
-  "data_type": "gtfs",
-  "provider": "Carris",
-  "location": {
-    "country_code": "PT",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2025-12-10 20:50:54.858775+00:00"
+    "mdb_source_id": 2929,
+    "data_type": "gtfs",
+    "provider": "Carris",
+    "location": {
+        "country_code": "PT",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2025-12-10 20:50:54.858775+00:00"
+        },
+        "municipality": "Lisbon"
     },
-    "municipality": "Lisbon"
-  },
-  "urls": {
-    "direct_download": "https://gateway.carris.pt/gateway/gtfs/api/v2.11/GTFS",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pt-lisbon-carris-gtfs-2929.zip?alt=media",
-    "authentication_type": 0
-  },
-  "name": "Carris",
-  "feed_contact_email": "pedro.silva@tecmic.pt",
-  "features": [],
-  "status": "active",
-  "is_official": "True",
-  "redirect": []
+    "urls": {
+        "direct_download": "https://gateway.carris.pt/gateway/gtfs/api/v2.11/GTFS",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pt-lisbon-carris-gtfs-2929.zip?alt=media",
+        "authentication_type": 0
+    },
+    "name": "Carris",
+    "feed_contact_email": "pedro.silva@tecmic.pt",
+    "features": [],
+    "status": "active",
+    "is_official": "True",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/pt-lisboa-metro-transportes-do-sul-gtfs-2408.json b/catalogs/sources/gtfs/schedule/pt-lisboa-metro-transportes-do-sul-gtfs-2408.json
index 0b6639e32..5f679226e 100644
--- a/catalogs/sources/gtfs/schedule/pt-lisboa-metro-transportes-do-sul-gtfs-2408.json
+++ b/catalogs/sources/gtfs/schedule/pt-lisboa-metro-transportes-do-sul-gtfs-2408.json
@@ -2,7 +2,7 @@
     "mdb_source_id": 2408,
     "data_type": "gtfs",
     "provider": "Metro Transportes do Sul, Metro Sul do Tejo",
-    "feed_contact_email": "ccesar@mts.pt", 
+    "feed_contact_email": "ccesar@mts.pt",
     "is_official": "True",
     "location": {
         "country_code": "PT",
@@ -20,5 +20,6 @@
         "direct_download": "https://mts.pt/imt/MTS-20240129.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pt-lisboa-metro-transportes-do-sul-gtfs-2408.zip?alt=media",
         "license": "https://nap-portugal.imt-ip.pt/nap/multimodalsupplydetail/200"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/pt-porto-sociedade-de-transportes-colectivos-do-porto-gtfs-2148.json b/catalogs/sources/gtfs/schedule/pt-porto-sociedade-de-transportes-colectivos-do-porto-gtfs-2148.json
index 6326b9a52..e07be2253 100644
--- a/catalogs/sources/gtfs/schedule/pt-porto-sociedade-de-transportes-colectivos-do-porto-gtfs-2148.json
+++ b/catalogs/sources/gtfs/schedule/pt-porto-sociedade-de-transportes-colectivos-do-porto-gtfs-2148.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/pt-porto-sociedade-de-transportes-colectivos-do-porto-gtfs-2148.zip?alt=media",
         "license": "https://opendata.porto.digital/dataset/horarios-paragens-e-rotas-em-formato-gtfs-stcp/resource/415bf8d5-4c18-40b3-9516-9d9187185ef9"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/sg-land-transport-gtfs-3051.json b/catalogs/sources/gtfs/schedule/sg-land-transport-gtfs-3051.json
index 64448edcf..e503ae6ee 100644
--- a/catalogs/sources/gtfs/schedule/sg-land-transport-gtfs-3051.json
+++ b/catalogs/sources/gtfs/schedule/sg-land-transport-gtfs-3051.json
@@ -1,26 +1,27 @@
 {
-  "mdb_source_id": 3051,
-  "data_type": "gtfs",
-  "provider": "Land Transport Authority (Singapore)",
-  "location": {
-    "country_code": "SG",
-    "bounding_box": {
-      "minimum_latitude": null,
-      "maximum_latitude": null,
-      "minimum_longitude": null,
-      "maximum_longitude": null,
-      "extracted_on": "2026-02-05 17:38:44.853006+00:00"
-    }
-  },
-  "urls": {
-    "direct_download": "https://github.com/thecrapone/singapore-gtfs-2026/raw/main/singapore-gtfs.zip",
-    "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/sg-land-transport--gtfs-3051.zip?alt=media",
-    "authentication_type": 0,
-    "license": "https://data.gov.sg/open-data-licence"
-  },
-  "name": "Singapore Public Transport",
-  "features": [],
-  "status": "active",
-  "is_official": "False",
-  "redirect": []
+    "mdb_source_id": 3051,
+    "data_type": "gtfs",
+    "provider": "Land Transport Authority (Singapore)",
+    "location": {
+        "country_code": "SG",
+        "bounding_box": {
+            "minimum_latitude": null,
+            "maximum_latitude": null,
+            "minimum_longitude": null,
+            "maximum_longitude": null,
+            "extracted_on": "2026-02-05 17:38:44.853006+00:00"
+        }
+    },
+    "urls": {
+        "direct_download": "https://github.com/thecrapone/singapore-gtfs-2026/raw/main/singapore-gtfs.zip",
+        "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/sg-land-transport--gtfs-3051.zip?alt=media",
+        "authentication_type": 0,
+        "license": "https://data.gov.sg/open-data-licence"
+    },
+    "name": "Singapore Public Transport",
+    "features": [],
+    "status": "active",
+    "is_official": "False",
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/sg-singapore-typical-weekday-gtfs-3409.json b/catalogs/sources/gtfs/schedule/sg-singapore-typical-weekday-gtfs-3409.json
index 1c129c6a5..f996cb085 100644
--- a/catalogs/sources/gtfs/schedule/sg-singapore-typical-weekday-gtfs-3409.json
+++ b/catalogs/sources/gtfs/schedule/sg-singapore-typical-weekday-gtfs-3409.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/sg-singapore-typical-weekday-gtfs-3409.zip?alt=media",
         "license": "https://github.com/Vorld/singapore-gtfs#licence"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/sk-region-of-kosice-kosice-dzk-gtfs-3154.json b/catalogs/sources/gtfs/schedule/sk-region-of-kosice-kosice-dzk-gtfs-3154.json
index 5e66dd10c..cdc20e6c5 100644
--- a/catalogs/sources/gtfs/schedule/sk-region-of-kosice-kosice-dzk-gtfs-3154.json
+++ b/catalogs/sources/gtfs/schedule/sk-region-of-kosice-kosice-dzk-gtfs-3154.json
@@ -18,5 +18,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/sk-region-of-kosice-kosice-dzk-gtfs-3154.zip?alt=media"
     },
     "redirect": [],
-    "is_official": "True"
+    "is_official": "True",
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-alabama-birmingham-jefferson-county-transit-authority-max-gtfs-3434.json b/catalogs/sources/gtfs/schedule/us-alabama-birmingham-jefferson-county-transit-authority-max-gtfs-3434.json
index a7cad8631..1cf6b4561 100644
--- a/catalogs/sources/gtfs/schedule/us-alabama-birmingham-jefferson-county-transit-authority-max-gtfs-3434.json
+++ b/catalogs/sources/gtfs/schedule/us-alabama-birmingham-jefferson-county-transit-authority-max-gtfs-3434.json
@@ -20,5 +20,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-alabama-birmingham-jefferson-county-transit-authority-max-gtfs-3434.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-arizona-suntran-gtfs-2354.json b/catalogs/sources/gtfs/schedule/us-arizona-suntran-gtfs-2354.json
index 689f72efb..2df21db32 100644
--- a/catalogs/sources/gtfs/schedule/us-arizona-suntran-gtfs-2354.json
+++ b/catalogs/sources/gtfs/schedule/us-arizona-suntran-gtfs-2354.json
@@ -19,5 +19,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-arizona-suntran-gtfs-2354.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-california-glendora-transportation-division-gtfs-3097.json b/catalogs/sources/gtfs/schedule/us-california-glendora-transportation-division-gtfs-3097.json
index b6e57c865..9f0abbba8 100644
--- a/catalogs/sources/gtfs/schedule/us-california-glendora-transportation-division-gtfs-3097.json
+++ b/catalogs/sources/gtfs/schedule/us-california-glendora-transportation-division-gtfs-3097.json
@@ -24,5 +24,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-california-glendora-transportation-division-gtfs-3097.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-california-glenn-transit-service-gtfs-3094.json b/catalogs/sources/gtfs/schedule/us-california-glenn-transit-service-gtfs-3094.json
index 063f98e90..73543fcd0 100644
--- a/catalogs/sources/gtfs/schedule/us-california-glenn-transit-service-gtfs-3094.json
+++ b/catalogs/sources/gtfs/schedule/us-california-glenn-transit-service-gtfs-3094.json
@@ -21,5 +21,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-california-glenn-transit-service-gtfs-3094.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-california-morro-bay-transit-gtfs-2059.json b/catalogs/sources/gtfs/schedule/us-california-morro-bay-transit-gtfs-2059.json
index fedadb5ea..0b089cd24 100644
--- a/catalogs/sources/gtfs/schedule/us-california-morro-bay-transit-gtfs-2059.json
+++ b/catalogs/sources/gtfs/schedule/us-california-morro-bay-transit-gtfs-2059.json
@@ -20,5 +20,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-california-morro-bay-transit-gtfs-2059.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-california-ventura-county-transportation-commission-gtfs-3096.json b/catalogs/sources/gtfs/schedule/us-california-ventura-county-transportation-commission-gtfs-3096.json
index 023884dec..ce61a650a 100644
--- a/catalogs/sources/gtfs/schedule/us-california-ventura-county-transportation-commission-gtfs-3096.json
+++ b/catalogs/sources/gtfs/schedule/us-california-ventura-county-transportation-commission-gtfs-3096.json
@@ -24,5 +24,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-california-ventura-county-transportation-commission-gtfs-3096.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-florida-gainesville-regional-transit-system-gtfs-2412.json b/catalogs/sources/gtfs/schedule/us-florida-gainesville-regional-transit-system-gtfs-2412.json
index d2eca6730..180deaafc 100644
--- a/catalogs/sources/gtfs/schedule/us-florida-gainesville-regional-transit-system-gtfs-2412.json
+++ b/catalogs/sources/gtfs/schedule/us-florida-gainesville-regional-transit-system-gtfs-2412.json
@@ -17,5 +17,6 @@
     "urls": {
         "direct_download": "http://go-rts.com/wp-content/uploads/2025/01/RTSGTFS_Spring2025.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-florida-gainesville-regional-transit-system-gtfs-2412.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-georgia-xpress-gtfs-2426.json b/catalogs/sources/gtfs/schedule/us-georgia-xpress-gtfs-2426.json
index 41f719e38..4ccce5646 100644
--- a/catalogs/sources/gtfs/schedule/us-georgia-xpress-gtfs-2426.json
+++ b/catalogs/sources/gtfs/schedule/us-georgia-xpress-gtfs-2426.json
@@ -20,5 +20,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-georgia-xpress-gtfs-2426.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-hawaii-hawaii-mass-transit-agency-hele-on-bus-gtfs-2608.json b/catalogs/sources/gtfs/schedule/us-hawaii-hawaii-mass-transit-agency-hele-on-bus-gtfs-2608.json
index 837a0d764..a1226f0a2 100644
--- a/catalogs/sources/gtfs/schedule/us-hawaii-hawaii-mass-transit-agency-hele-on-bus-gtfs-2608.json
+++ b/catalogs/sources/gtfs/schedule/us-hawaii-hawaii-mass-transit-agency-hele-on-bus-gtfs-2608.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://www.heleonbus.hawaiicounty.gov/home/showpublisheddocument/307470/638458319827900000",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-hawaii-hawaii-mass-transit-agency-hele-on-bus-gtfs-2608.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-illinois-danville-mass-transit-gtfs-2363.json b/catalogs/sources/gtfs/schedule/us-illinois-danville-mass-transit-gtfs-2363.json
index 59dc441ff..802f1e60f 100644
--- a/catalogs/sources/gtfs/schedule/us-illinois-danville-mass-transit-gtfs-2363.json
+++ b/catalogs/sources/gtfs/schedule/us-illinois-danville-mass-transit-gtfs-2363.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-illinois-danville-mass-transit-gtfs-2363.zip?alt=media",
         "license": "https://www.ridedmt.org/schedules-fares/gtfs-feed"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-illinois-rockford-mass-transit-district-gtfs-2019.json b/catalogs/sources/gtfs/schedule/us-illinois-rockford-mass-transit-district-gtfs-2019.json
index a00aecc4e..dcf568f57 100644
--- a/catalogs/sources/gtfs/schedule/us-illinois-rockford-mass-transit-district-gtfs-2019.json
+++ b/catalogs/sources/gtfs/schedule/us-illinois-rockford-mass-transit-district-gtfs-2019.json
@@ -20,5 +20,6 @@
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-illinois-rockford-mass-transit-district-gtfs-2019.zip?alt=media",
         "license": "https://rmtd.org/gtfs/"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-indiana-muncie-indiana-transit-system-mits-gtfs-719.json b/catalogs/sources/gtfs/schedule/us-indiana-muncie-indiana-transit-system-mits-gtfs-719.json
index a2386ba19..5edd1e5a7 100644
--- a/catalogs/sources/gtfs/schedule/us-indiana-muncie-indiana-transit-system-mits-gtfs-719.json
+++ b/catalogs/sources/gtfs/schedule/us-indiana-muncie-indiana-transit-system-mits-gtfs-719.json
@@ -21,5 +21,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-indiana-muncie-indiana-transit-system-mits-gtfs-719.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-kansas-salina-gtfs-1867.json b/catalogs/sources/gtfs/schedule/us-kansas-salina-gtfs-1867.json
index 341bbd2f6..4a4e47393 100644
--- a/catalogs/sources/gtfs/schedule/us-kansas-salina-gtfs-1867.json
+++ b/catalogs/sources/gtfs/schedule/us-kansas-salina-gtfs-1867.json
@@ -17,5 +17,6 @@
     "urls": {
         "direct_download": "https://salinacitygo.com/wp-content/uploads/2022/11/export-2022-11-30T10-18-07.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-kansas-salina-gtfs-1867.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-new-mexico-north-central-regional-transit-district-ncrtd-gtfs-582.json b/catalogs/sources/gtfs/schedule/us-new-mexico-north-central-regional-transit-district-ncrtd-gtfs-582.json
index 23f340360..fade91123 100644
--- a/catalogs/sources/gtfs/schedule/us-new-mexico-north-central-regional-transit-district-ncrtd-gtfs-582.json
+++ b/catalogs/sources/gtfs/schedule/us-new-mexico-north-central-regional-transit-district-ncrtd-gtfs-582.json
@@ -21,5 +21,6 @@
     "urls": {
         "direct_download": "https://www.ncrtd.org/wp-content/uploads/2021/05/gtfs-5.12.21.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-new-mexico-north-central-regional-transit-district-ncrtd-gtfs-582.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-ohio-butler-county-regional-transit-authority-gtfs-240.json b/catalogs/sources/gtfs/schedule/us-ohio-butler-county-regional-transit-authority-gtfs-240.json
index 44517ac74..f03a94846 100644
--- a/catalogs/sources/gtfs/schedule/us-ohio-butler-county-regional-transit-authority-gtfs-240.json
+++ b/catalogs/sources/gtfs/schedule/us-ohio-butler-county-regional-transit-authority-gtfs-240.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://www.butlercountyrta.com/wp-content/uploads/2019/11/Bcrta-GTFS-1.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-ohio-butler-county-regional-transit-authority-gtfs-240.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-ohio-steel-valley-regional-transit-authority-gtfs-3113.json b/catalogs/sources/gtfs/schedule/us-ohio-steel-valley-regional-transit-authority-gtfs-3113.json
index 35d439bc8..6fb2e168d 100644
--- a/catalogs/sources/gtfs/schedule/us-ohio-steel-valley-regional-transit-authority-gtfs-3113.json
+++ b/catalogs/sources/gtfs/schedule/us-ohio-steel-valley-regional-transit-authority-gtfs-3113.json
@@ -19,5 +19,6 @@
         "direct_download": "https://svrta.com/wp-content/uploads/2025/12/svrta-steubenville-oh-us-2.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-ohio-steel-valley-regional-transit-authority-gtfs-3113.zip?alt=media",
         "license": "https://svrta.com/website-disclaimer/"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-tennessee-muletown-trolley-gtfs-2420.json b/catalogs/sources/gtfs/schedule/us-tennessee-muletown-trolley-gtfs-2420.json
index 89b3b64e4..f1e925701 100644
--- a/catalogs/sources/gtfs/schedule/us-tennessee-muletown-trolley-gtfs-2420.json
+++ b/catalogs/sources/gtfs/schedule/us-tennessee-muletown-trolley-gtfs-2420.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://www.sctdd.org/wp-content/uploads/2025/02/gtfs_muletown.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-tennessee-muletown-trolley-gtfs-2420.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/us-virginia-fredericksburg-regional-transit-gtfs-3433.json b/catalogs/sources/gtfs/schedule/us-virginia-fredericksburg-regional-transit-gtfs-3433.json
index 1e347da3d..4058aee3f 100644
--- a/catalogs/sources/gtfs/schedule/us-virginia-fredericksburg-regional-transit-gtfs-3433.json
+++ b/catalogs/sources/gtfs/schedule/us-virginia-fredericksburg-regional-transit-gtfs-3433.json
@@ -19,5 +19,6 @@
         "direct_download": "https://www.fredericksburgva.gov/DocumentCenter/View/31122/FXBGO-GTFS---CY2026",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-virginia-fredericksburg-regional-transit-gtfs-3433.zip?alt=media",
         "license": "https://www.fredericksburgva.gov/1937/Developer-Resources"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
diff --git a/catalogs/sources/gtfs/schedule/us-washington-microsoft-shuttles-gtfs-269.json b/catalogs/sources/gtfs/schedule/us-washington-microsoft-shuttles-gtfs-269.json
index 6776d5866..acd7a3b90 100644
--- a/catalogs/sources/gtfs/schedule/us-washington-microsoft-shuttles-gtfs-269.json
+++ b/catalogs/sources/gtfs/schedule/us-washington-microsoft-shuttles-gtfs-269.json
@@ -18,5 +18,6 @@
     "urls": {
         "direct_download": "https://github.com/cookieguru/microsoft-gtfs/releases/download/20150518150359/gtfs_20150518150359.zip",
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/us-washington-microsoft-shuttles-gtfs-269.zip?alt=media"
-    }
+    },
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file
diff --git a/catalogs/sources/gtfs/schedule/uy-south-america-colonia-colonia-del-sacramento-bus-gtfs-3464.json b/catalogs/sources/gtfs/schedule/uy-south-america-colonia-colonia-del-sacramento-bus-gtfs-3464.json
index 6938ab0bf..99fc2d9bb 100644
--- a/catalogs/sources/gtfs/schedule/uy-south-america-colonia-colonia-del-sacramento-bus-gtfs-3464.json
+++ b/catalogs/sources/gtfs/schedule/uy-south-america-colonia-colonia-del-sacramento-bus-gtfs-3464.json
@@ -18,5 +18,6 @@
         "authentication_type": 0,
         "latest": "https://storage.googleapis.com/storage/v1/b/mdb-latest/o/uy-south-america-colonia-colonia-del-sacramento---bus-gtfs-3464.zip?alt=media"
     },
-    "redirect": []
+    "redirect": [],
+    "is_producer_url_unstable": "True"
 }
\ No newline at end of file