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unrecognised fingerprint

t12d2010s2_0bf03fa604e3_736b2a1ed4d3

Unclassified

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

TLS 1.2ALPN spdy/2 · spdy/3 · spdy/3.1 · http/1.12026-07-23 → 2026-07-23
JA4
JA4_r
JA3
no single JA3 is stored for this fingerprint.
JA3_raw
—

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Read

catalog identity
No ground-truth build has reproduced this hello yet — absence is not a verdict.
self-randomisation
unclassified · 5 JA3 — only 5 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

5
observations
1
domains reached
2026-07-23
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)
spdy/2, spdy/3, spdy/3.1, http/1.1
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(20)
  1. 00xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  2. 10xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  3. 20x0039TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  4. 30x006bTLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  5. 40x0035TLS_RSA_WITH_AES_256_CBC_SHA
  6. 50x003dTLS_RSA_WITH_AES_256_CBC_SHA256
  7. 60xc007unknown (0xc007)
  8. 70xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  9. 80xc023TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  10. 90xc011unknown (0xc011)
  11. 100xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  12. 110xc027TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  13. 120x0033TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  14. 130x0067TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  15. 140x0032TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  16. 150x0005unknown (0x0005)
  17. 160x0004unknown (0x0004)
  18. 170x002fTLS_RSA_WITH_AES_128_CBC_SHA
  19. 180x003cTLS_RSA_WITH_AES_128_CBC_SHA256
  20. 190x000aunknown (0x000a)
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. 60x0023session_ticket
  8. 70x3374unknown (0x3374)
  9. 80x754funknown (0x754f)
  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. 00x0017secp256r1 (P-256)
  2. 10x0018secp384r1 (P-384)
  3. 20x0019secp521r1 (P-521)
signature algorithms(8)
  1. 00x0401rsa_pkcs1_sha256
  2. 10x0501rsa_pkcs1_sha384
  3. 20x0201rsa_pkcs1_sha1
  4. 30x0403ecdsa_secp256r1_sha256
  5. 40x0503ecdsa_secp384r1_sha384
  6. 50x0203ecdsa_sha1
  7. 60x0402rsa_pkcs1_sha384
  8. 70x0202unknown (0x0202)

JA3 variants

5 distinct JA3 hashes collapse into this one JA4.

#JA3JA3_rawobsshare
0771,49162-49172-57-107…23-24-25,0120%
1771,49162-49172-57-107…23-24-25,0120%
2771,49162-49172-57-107…23-24-25,0120%
3771,49162-49172-57-107…23-24-25,0120%
4771,49162-49172-57-107…23-24-25,0120%

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