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unrecognised fingerprint

t13d0312h2_55b375c5d22e_e5728521abd4

Unclassified

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

TLS 1.3ALPN h22026-07-22 → 2026-07-22
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
1.000 roams across 2 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

2
observations
2
domains reached
2026-07-22
first seen
2026-07-22
last seen

ClientHello anatomy

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

TLS version
TLS 1.3
ALPN (wire order)
h2
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(3)
  1. 00x1301TLS_AES_128_GCM_SHA256
  2. 10x1302TLS_AES_256_GCM_SHA384
  3. 20x1303TLS_CHACHA20_POLY1305_SHA256
extensions(12)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. 80x002bsupported_versions
  10. 90x0032unknown (0x0032)
  11. 100x0033key_share
  12. 110xff01renegotiation_info

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

curves / groups(2)
  1. 00x0017secp256r1 (P-256)
  2. 10x0018secp384r1 (P-384)
signature algorithms(12)
  1. 00x0804rsa_pss_rsae_sha256
  2. 10x0403ecdsa_secp256r1_sha256
  3. 20x0807ed25519
  4. 30x0805rsa_pss_rsae_sha384
  5. 40x0806rsa_pss_rsae_sha512
  6. 50x0401rsa_pkcs1_sha256
  7. 60x0501rsa_pkcs1_sha384
  8. 70x0601rsa_pkcs1_sha512
  9. 80x0503ecdsa_secp384r1_sha384
  10. 90x0603ecdsa_secp521r1_sha512
  11. 100x0201rsa_pkcs1_sha1
  12. 110x0203ecdsa_sha1

Reach — domains contacted

Top 2 of 2. Share is the fraction of this fingerprint’s observations reaching each name.