Traces what DataDome evaluates on the very first request, before any JavaScript runs: the TLS/JA4 fingerprint, the HTTP/2 frame profile, the header set, and IP and ASN reputation, and how those signals stack into one decision.
A reference on DataDome's client-side JavaScript tag: the ddjskey site identifier, the signals the browser collector gathers and posts to api-js.datadome.co, and how the challenge and interstitial flow is wired.
Traces how DataDome turns an HTTP request into an allow, challenge, or block verdict at the edge: the module-to-API split, the form fields it ships, the regional inference layer, and the latency budget that keeps it synchronous.
A reference on the network-layer fingerprints DataDome reads: HTTP/2 SETTINGS frames, flow control, pseudo-header order, and how a mismatch between the claimed user agent and the wire profile flags a client.
Traces the datadome cookie end to end: how it is issued after a challenge, what the 128-byte token encodes, when it rotates, how long it lives, and how the edge validates it on every request through the Protection API.
Traces what the _abck cookie carries, how it relates to the sensor_data POST, and the handshake that flips it from a challenge state to a validated one, with notes on what is documented versus inferred.