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unrecognised fingerprint

t12d0910h1_5e39edccbee7_f88f2b2eb673

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 · spdy/3.12026-07-19 → 2026-07-23
JA4
JA4_r
JA3
JA3_raw
This JA3 resolves unambiguously to the JA4 above.

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catalog identity
No ground-truth build has reproduced this hello yet — absence is not a verdict.
self-randomisation
unclassified — only 2 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

2
observations
1
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, spdy/3.1
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(9)
  1. 00xc02bTLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  2. 10xc02fTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  3. 20xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  4. 30xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  5. 40xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  6. 50xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  7. 60x009cTLS_RSA_WITH_AES_128_GCM_SHA256
  8. 70x002fTLS_RSA_WITH_AES_128_CBC_SHA
  9. 80x0035TLS_RSA_WITH_AES_256_CBC_SHA
extensions(10)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. 60x0015padding
  8. 70x0017extended_master_secret
  9. 80x0023session_ticket
  10. 90xff01renegotiation_info

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

curves / groups(3)
  1. 00x001dx25519
  2. 10x0017secp256r1 (P-256)
  3. 20x0018secp384r1 (P-384)
signature algorithms(9)
  1. 00x0403ecdsa_secp256r1_sha256
  2. 10x0804rsa_pss_rsae_sha256
  3. 20x0401rsa_pkcs1_sha256
  4. 30x0503ecdsa_secp384r1_sha384
  5. 40x0805rsa_pss_rsae_sha384
  6. 50x0501rsa_pkcs1_sha384
  7. 60x0806rsa_pss_rsae_sha512
  8. 70x0601rsa_pkcs1_sha512
  9. 80x0201rsa_pkcs1_sha1

Reach — domains contacted

Top 1 of 1. Share is the fraction of this fingerprint’s observations reaching each name.