unrecognised fingerprint

t13d171100_ab0a1bf427ad_8e6e362c5eac

Unclassified

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

TLS 1.3no ALPN2026-07-20 → 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 · 3 JA3 — only 8 observation(s) — too few to tell a permuting client from a coincidence.

reach

0.980 roams across 7 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

observations

domains reached

2026-07-20

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 1.3
ALPN (wire order): —
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(17)

00x1302TLS_AES_256_GCM_SHA384
10x1303TLS_CHACHA20_POLY1305_SHA256
20x1301TLS_AES_128_GCM_SHA256
30xc02cTLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
40xc030TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
50xc02bTLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
60xc02fTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
70xcca9TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
80xcca8TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
90xc024TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
100xc028TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
110xc023TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
120xc027TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
130x009fTLS_DHE_RSA_WITH_AES_256_GCM_SHA384
140x009eTLS_DHE_RSA_WITH_AES_128_GCM_SHA256
150x006bTLS_DHE_RSA_WITH_AES_256_CBC_SHA256
160x0067TLS_DHE_RSA_WITH_AES_128_CBC_SHA256

extensions(11)sorted

00x0000server_name (SNI)
10x000asupported_groups
20x000bec_point_formats
30x000dsignature_algorithms
40x0016encrypt_then_mac
50x0017extended_master_secret
60x0023session_ticket
70x002bsupported_versions
80x002dpsk_key_exchange_modes
90x0033key_share
100xff01renegotiation_info

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

curves / groups(8)

00x11ecX25519MLKEM768 PQ
10x001dx25519
20x0017secp256r1 (P-256)
30x001ex448
40x0018secp384r1 (P-384)
50x0019secp521r1 (P-521)
60x0100ffdhe2048
70x0101ffdhe3072

signature algorithms(26)

00x0905unknown (0x0905)
10x0906unknown (0x0906)
20x0904unknown (0x0904)
30x0403ecdsa_secp256r1_sha256
40x0503ecdsa_secp384r1_sha384
50x0603ecdsa_secp521r1_sha512
60x0807ed25519
70x0808ed448
80x081aunknown (0x081a)
90x081bunknown (0x081b)
100x081cunknown (0x081c)
110x0809rsa_pss_pss_sha256
120x080arsa_pss_pss_sha384
130x080brsa_pss_pss_sha512
140x0804rsa_pss_rsae_sha256
150x0805rsa_pss_rsae_sha384
160x0806rsa_pss_rsae_sha512
170x0401rsa_pkcs1_sha256
180x0501rsa_pkcs1_sha384
190x0601rsa_pkcs1_sha512
200x0303rsa_pkcs1_sha512 (legacy)
210x0301rsa_pkcs1_sha256 (legacy)
220x0302rsa_pkcs1_sha384 (legacy)
230x0402rsa_pkcs1_sha384
240x0502ecdsa_secp384r1_sha384
250x0602ecdsa_secp521r1_sha512

JA3 variants

3 distinct JA3 hashes collapse into this one JA4.

#	JA3_raw	obs	share
0	771,4866-4867-4865-491…-257,0-1-2	5	63%
1	771,4866-4867-4865-491…-256-257,0	2	25%
2	771,4866-4867-4865-491…-257,0-1-2	1	13%

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 7 of 7. Share is the fraction of this fingerprint’s observations reaching each name.