// vendor intelligence
what signifyd detects
signifyd is a fraud-scoring vendor. it declares strong ip reputation (2/3), strong behavioral (2/3) capability. below: the layers it enforces and the cookie, endpoint, and header tells it leaves.
enforced detection layers
| detection layer | capability | what it covers |
|---|---|---|
| tls / network fingerprint | unaddressed | the ja3/ja4 clienthello and http/2 settings signature the edge reads before any javascript runs. |
| ip reputation | 2/3 strong | asn, proxy-class, and abuse-history scoring of the connecting address. |
| js fingerprint | unaddressed | canvas, webgl, navigator, font, and audio signals collected in-page. |
| behavioral | 2/3 strong | mouse, keyboard, and timing biometrics read from interaction cadence. |
| challenge | unaddressed | interactive or invisible captcha and proof-of-work gates. |
| attestation | unaddressed | hardware or os-backed integrity checks (webauthn, play integrity, device attestation). |
| server coherence | unaddressed | cross-checking headers, tls, ip, and js for internal consistency. |
unaddressed means this tool type does not operate at that layer, so it is not a failing score. a red 0/3 is a real, declared score of zero. both are declared capability, not live pass-rates.
tells
- endpoints
- cdn device sdk -> signifyd decision api (server-to-server)
- header tells
- signifyd.com, signifyd device
commerce-protection order-graph scoring under a chargeback-guarantee model; a device sdk feeds the decision api and returns approve/decline to the merchant backend. nothing blocks in the browser.
questions
- what does signifyd detect?
- it declares strong ip reputation (2/3), strong behavioral (2/3) capability. layers not listed are not enforced by signifyd.
- what are signifyd's tells?
- header/script tells: signifyd.com, signifyd device. endpoints: cdn device sdk -> signifyd decision api (server-to-server).
other vendors
where to go from here
layer intensities are catalog-declared (0..3), speculative, and the catalog carries no capture date for this record. layer definitions in the glossary.