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unrecognised fingerprint

t13d0812h2_59a40bce549a_f78d73ce1111

Unclassified

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

TLS 1.3ALPN h2 · http/1.12026-07-22 → 2026-07-22
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 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
1
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, http/1.1
EC point formats
0x0000
Post-quantum key share
present (X25519MLKEM768)

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(8)
  1. 00xc02cTLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
  2. 10x1302TLS_AES_256_GCM_SHA384
  3. 20xcca8TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
  4. 30x0035TLS_RSA_WITH_AES_256_CBC_SHA
  5. 40x1301TLS_AES_128_GCM_SHA256
  6. 50xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  7. 60x009cTLS_RSA_WITH_AES_128_GCM_SHA256
  8. 70xcca9TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
extensions(12)sorted
  1. 00x0000server_name (SNI)
  2. 10x000asupported_groups
  3. 20x000bec_point_formats
  4. 30x000dsignature_algorithms
  5. 40x0010application_layer_protocol_negotiation (ALPN)
  6. 50x0012signed_certificate_timestamp
  7. 60x001crecord_size_limit
  8. 70x002bsupported_versions
  9. 80x002dpsk_key_exchange_modes
  10. 90x0033key_share
  11. 100x44cddelegated_credentials
  12. 110xfe0dencrypted_client_hello

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

curves / groups(4)
  1. 00x0018secp384r1 (P-384)
  2. 10x0017secp256r1 (P-256)
  3. 20x11ecX25519MLKEM768 PQ
  4. 30x001dx25519
signature algorithms(6)
  1. 00x0401rsa_pkcs1_sha256
  2. 10x0201rsa_pkcs1_sha1
  3. 20x0806rsa_pss_rsae_sha512
  4. 30x0403ecdsa_secp256r1_sha256
  5. 40x0804rsa_pss_rsae_sha256
  6. 50x0805rsa_pss_rsae_sha384

Reach — domains contacted

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