unrecognised fingerprint
t13i0413h1_16476d049b0b_c9f0781d7489
Unclassified
Too few observations to classify this stack — a handful of connections can't tell a permuting client from coincidence.
- JA4
- JA4_r
- JA3
- JA3_raw
Read
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
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
2
observations
0
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.
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(4)
- 00x1302TLS_AES_256_GCM_SHA384
- 10x1303TLS_CHACHA20_POLY1305_SHA256
- 20x1301TLS_AES_128_GCM_SHA256
- 30x00ffTLS_EMPTY_RENEGOTIATION_INFO
extensions(13)sorted
- 00x000asupported_groups
- 10x000bec_point_formats
- 20x000dsignature_algorithms
- 30x0010application_layer_protocol_negotiation (ALPN)
- 40x0015padding
- 50x0016encrypt_then_mac
- 60x0017extended_master_secret
- 70x0029unknown (0x0029)
- 80x002bsupported_versions
- 90x002dpsk_key_exchange_modes
- 100x0031post_handshake_auth
- 110x0033key_share
- 120x3374unknown (0x3374)
Stored sorted — under one JA4 the wire order varies by construction, so no single order is “the” order.
curves / groups(10)
- 00x001dx25519
- 10x0017secp256r1 (P-256)
- 20x001ex448
- 30x0019secp521r1 (P-521)
- 40x0018secp384r1 (P-384)
- 50x0100ffdhe2048
- 60x0101ffdhe3072
- 70x0102ffdhe4096
- 80x0103ffdhe6144
- 90x0104ffdhe8192
signature algorithms(14)
- 00x0403ecdsa_secp256r1_sha256
- 10x0503ecdsa_secp384r1_sha384
- 20x0603ecdsa_secp521r1_sha512
- 30x0807ed25519
- 40x0808ed448
- 50x0809rsa_pss_pss_sha256
- 60x080arsa_pss_pss_sha384
- 70x080brsa_pss_pss_sha512
- 80x0804rsa_pss_rsae_sha256
- 90x0805rsa_pss_rsae_sha384
- 100x0806rsa_pss_rsae_sha512
- 110x0401rsa_pkcs1_sha256
- 120x0501rsa_pkcs1_sha384
- 130x0601rsa_pkcs1_sha512