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unrecognised fingerprint

t12d0508h1_be41622fbb2f_3c5a66c06c35

Unclassified

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

TLS 1.2ALPN http/1.12026-07-19 → 2026-07-23
JA4
JA4_r
JA3
no single JA3 is stored for this fingerprint.
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 · 8 JA3 — only 8 observation(s) — too few to tell a permuting client from a coincidence.
reach
0.967 roams across 6 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
6
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
EC point formats
0x0000, 0x0001, 0x0002
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(5)
  1. 00xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  2. 10xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  3. 20xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  4. 30xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  5. 40x00ffTLS_EMPTY_RENEGOTIATION_INFO
extensions(8)sorted
  1. 00x0000server_name (SNI)
  2. 10x000asupported_groups
  3. 20x000bec_point_formats
  4. 30x000dsignature_algorithms
  5. 40x0010application_layer_protocol_negotiation (ALPN)
  6. 50x0016encrypt_then_mac
  7. 60x0017extended_master_secret
  8. 70x0023session_ticket

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

curves / groups(1)
  1. 00x0017secp256r1 (P-256)
signature algorithms(23)
  1. 00x0403ecdsa_secp256r1_sha256
  2. 10x0503ecdsa_secp384r1_sha384
  3. 20x0603ecdsa_secp521r1_sha512
  4. 30x0807ed25519
  5. 40x0808ed448
  6. 50x0809rsa_pss_pss_sha256
  7. 60x080arsa_pss_pss_sha384
  8. 70x080brsa_pss_pss_sha512
  9. 80x0804rsa_pss_rsae_sha256
  10. 90x0805rsa_pss_rsae_sha384
  11. 100x0806rsa_pss_rsae_sha512
  12. 110x0401rsa_pkcs1_sha256
  13. 120x0501rsa_pkcs1_sha384
  14. 130x0601rsa_pkcs1_sha512
  15. 140x0303rsa_pkcs1_sha512 (legacy)
  16. 150x0203ecdsa_sha1
  17. 160x0301rsa_pkcs1_sha256 (legacy)
  18. 170x0201rsa_pkcs1_sha1
  19. 180x0302rsa_pkcs1_sha384 (legacy)
  20. 190x0202unknown (0x0202)
  21. 200x0402rsa_pkcs1_sha384
  22. 210x0502ecdsa_secp384r1_sha384
  23. 220x0602ecdsa_secp521r1_sha512

JA3 variants

8 distinct JA3 hashes collapse into this one JA4.

#JA3JA3_rawobsshare
0771,49171-49172-49161-…1,23,0-1-2113%
1771,49171-49172-49161-…5,23,0-1-2113%
2771,49171-49172-49161-…6,23,0-1-2113%
3771,49171-49172-49161-…2,23,0-1-2113%
4771,49171-49172-49161-…1,23,0-1-2113%
5771,49171-49172-49161-…2,23,0-1-2113%
6771,49171-49172-49161-…3,23,0-1-2113%
7771,49171-49172-49161-…0,23,0-1-2113%

JA3 hashes preserve wire order, so a permuting client mints a new one per connection; JA4 sorts the same set, which is why they share one JA4. Every hash here belongs to this fingerprint — there is no per-JA3 page.

Reach — domains contacted

Top 6 of 6. Share is the fraction of this fingerprint’s observations reaching each name.