unrecognised fingerprint
t12i140800_c866b44c5a26_f88f2b2eb673
Unclassified
Too few observations to classify this stack — a handful of connections can't tell a permuting client from coincidence.
- JA4
- JA4_r
- JA3
- JA3_raw
Read
catalog identity
No ground-truth build has reproduced this hello yet — absence is not a verdict.
self-randomisation
unclassified — only 1 observation(s) — too few to tell a permuting client from a coincidence.
reach
0.000effectively one destination.
Spread measures reach, not intent: it can’t tell one scraper visiting 500 domains from 500 people visiting one each. Stability is a claim about software — whether the stack is deterministic — nothing about who runs it.
Footprint
1
observations
0
domains reached
2026-07-19
first seen
2026-07-19
last seen
ClientHello anatomy
The underscore groups of JA4_r are the raw cipher suites · extensions · signature algorithms behind the hash.
The post-quantum key share is a structural fact about the hello, not a verdict — GREASE values are flagged the same neutral way.
cipher suites(14)
- 00xc02bTLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- 10xc02cTLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- 20xcca9TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
- 30xc02fTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- 40xc030TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- 50xcca8TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
- 60xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- 70xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- 80xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- 90xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- 100x009cTLS_RSA_WITH_AES_128_GCM_SHA256
- 110x009dTLS_RSA_WITH_AES_256_GCM_SHA384
- 120x002fTLS_RSA_WITH_AES_128_CBC_SHA
- 130x0035TLS_RSA_WITH_AES_256_CBC_SHA
extensions(8)sorted
- 00x0005status_request (OCSP)
- 10x000asupported_groups
- 20x000bec_point_formats
- 30x000dsignature_algorithms
- 40x0015padding
- 50x0017extended_master_secret
- 60x0023session_ticket
- 70xff01renegotiation_info
Stored sorted — under one JA4 the wire order varies by construction, so no single order is “the” order.
curves / groups(3)
- 00x001dx25519
- 10x0017secp256r1 (P-256)
- 20x0018secp384r1 (P-384)
signature algorithms(9)
- 00x0403ecdsa_secp256r1_sha256
- 10x0804rsa_pss_rsae_sha256
- 20x0401rsa_pkcs1_sha256
- 30x0503ecdsa_secp384r1_sha384
- 40x0805rsa_pss_rsae_sha384
- 50x0501rsa_pkcs1_sha384
- 60x0806rsa_pss_rsae_sha512
- 70x0601rsa_pkcs1_sha512
- 80x0201rsa_pkcs1_sha1