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unrecognised fingerprint

t12d1909h1_b5dc49c6fcca_2cdefc264be7

Unclassified

Too few observations to classify this stack — a handful of connections can't tell a permuting client from coincidence.

TLS 1.2ALPN http/1.1 · http/1.02026-07-19 → 2026-07-23
JA4
JA4_r
JA3
JA3_raw

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catalog identity
No ground-truth build has reproduced this hello yet — absence is not a verdict.
self-randomisation
unclassified — only 8 observation(s) — too few to tell a permuting client from a coincidence.
reach
0.928 roams across 5 domains — spread is how evenly, not how many.

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

8
observations
5
domains reached
2026-07-19
first seen
2026-07-23
last seen

ClientHello anatomy

The underscore groups of JA4_r are the raw cipher suites · extensions · signature algorithms behind the hash.

TLS version
TLS 1.2
ALPN (wire order)
http/1.1, http/1.0
EC point formats
0x0000
Post-quantum key share
absent

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(19)
  1. 00x00ffTLS_EMPTY_RENEGOTIATION_INFO
  2. 10xc02cTLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
  3. 20xc02bTLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  4. 30xc024TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
  5. 40xc023TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  6. 50xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  7. 60xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  8. 70xc030TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
  9. 80xc02fTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  10. 90xc028TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  11. 100xc027TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  12. 110xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  13. 120xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  14. 130x009dTLS_RSA_WITH_AES_256_GCM_SHA384
  15. 140x009cTLS_RSA_WITH_AES_128_GCM_SHA256
  16. 150x003dTLS_RSA_WITH_AES_256_CBC_SHA256
  17. 160x003cTLS_RSA_WITH_AES_128_CBC_SHA256
  18. 170x0035TLS_RSA_WITH_AES_256_CBC_SHA
  19. 180x002fTLS_RSA_WITH_AES_128_CBC_SHA
extensions(9)sorted
  1. 00x0000server_name (SNI)
  2. 10x0005status_request (OCSP)
  3. 20x000asupported_groups
  4. 30x000bec_point_formats
  5. 40x000dsignature_algorithms
  6. 50x0010application_layer_protocol_negotiation (ALPN)
  7. 60x0012signed_certificate_timestamp
  8. 70x0017extended_master_secret
  9. 80x3374unknown (0x3374)

Stored sorted — under one JA4 the wire order varies by construction, so no single order is “the” order.

curves / groups(3)
  1. 00x0017secp256r1 (P-256)
  2. 10x0018secp384r1 (P-384)
  3. 20x0019secp521r1 (P-521)
signature algorithms(8)
  1. 00x0401rsa_pkcs1_sha256
  2. 10x0201rsa_pkcs1_sha1
  3. 20x0501rsa_pkcs1_sha384
  4. 30x0601rsa_pkcs1_sha512
  5. 40x0403ecdsa_secp256r1_sha256
  6. 50x0203ecdsa_sha1
  7. 60x0503ecdsa_secp384r1_sha384
  8. 70x0603ecdsa_secp521r1_sha512

Reach — domains contacted

Top 5 of 5. Share is the fraction of this fingerprint’s observations reaching each name.