unrecognised fingerprint
t13d221100_231e334592e8_36bf25f296df
One JA3 across every connection — a deterministic stack, the shape of a library or command-line client, with no catalogue name yet.
- JA4
- JA4_r
- JA3
- JA3_raw
Read
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
ClientHello anatomy
The underscore groups of JA4_r are the raw cipher suites · extensions · signature algorithms behind the hash.
The post-quantum key share is a structural fact about the hello, not a verdict — GREASE values are flagged the same neutral way.
- 00x1302TLS_AES_256_GCM_SHA384
- 10x1301TLS_AES_128_GCM_SHA256
- 20xc02cTLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- 30xc02bTLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- 40xc030TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- 50xc02fTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- 60x009fTLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- 70x009eTLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- 80xc024TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- 90xc023TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- 100xc028TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- 110xc027TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- 120xc00aTLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- 130xc009TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- 140xc014TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- 150xc013TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- 160x009dTLS_RSA_WITH_AES_256_GCM_SHA384
- 170x009cTLS_RSA_WITH_AES_128_GCM_SHA256
- 180x003dTLS_RSA_WITH_AES_256_CBC_SHA256
- 190x003cTLS_RSA_WITH_AES_128_CBC_SHA256
- 200x0035TLS_RSA_WITH_AES_256_CBC_SHA
- 210x002fTLS_RSA_WITH_AES_128_CBC_SHA
- 00x0000server_name (SNI)
- 10x000asupported_groups
- 20x000bec_point_formats
- 30x000dsignature_algorithms
- 40x0017extended_master_secret
- 50x0023session_ticket
- 60x002bsupported_versions
- 70x002dpsk_key_exchange_modes
- 80x0031post_handshake_auth
- 90x0033key_share
- 100xff01renegotiation_info
Stored sorted — under one JA4 the wire order varies by construction, so no single order is “the” order.
- 00x001dx25519
- 10x0017secp256r1 (P-256)
- 20x0018secp384r1 (P-384)
- 00x0804rsa_pss_rsae_sha256
- 10x0805rsa_pss_rsae_sha384
- 20x0806rsa_pss_rsae_sha512
- 30x0401rsa_pkcs1_sha256
- 40x0501rsa_pkcs1_sha384
- 50x0201rsa_pkcs1_sha1
- 60x0403ecdsa_secp256r1_sha256
- 70x0503ecdsa_secp384r1_sha384
- 80x0203ecdsa_sha1
- 90x0202unknown (0x0202)
- 100x0601rsa_pkcs1_sha512
- 110x0603ecdsa_secp521r1_sha512
Reach — domains contacted
- 12%
- 9.5%
- 8.6%
- 7.7%
- 7.2%
- 6.8%
- 6.3%
- 5.4%
- 5.0%
- 5.0%
- 4.5%
- 4.1%
- 3.6%
- 3.6%
- 2.3%
Top 15 of 24. Share is the fraction of this fingerprint’s observations reaching each name.