Description
Add a debug endpoint GET /_ts/debug/ja4 to the Fastly adapter to inspect JA4 TLS fingerprints, H2 fingerprints, cipher suites, TLS versions, and Client Hints in production. This endpoint is needed to evaluate TLS fingerprinting as a cross-browser identity signal and as a validated-browser signal in OpenRTB ext fields.
Done When
Affected Area
Fastly runtime
Description
Add a debug endpoint
GET /_ts/debug/ja4to the Fastly adapter to inspect JA4 TLS fingerprints, H2 fingerprints, cipher suites, TLS versions, and Client Hints in production. This endpoint is needed to evaluate TLS fingerprinting as a cross-browser identity signal and as a validated-browser signal in OpenRTB ext fields.Done When
GET /_ts/debug/ja4returns plain-text TLS/browser fingerprint dataAffected Area
Fastly runtime