TLS ClientHello (JA4)

t13d0711h2_75170143617c_9ced094328c9

first seen 2026-08-17 17:46 · last seen 2026-08-17 17:46 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count7
Extension count11
ALPNh2
Ciphers009c, 1301, 1302, 1303, c013, c014, c030
Extensions000a, 000b, 000d, 0017, 0023, 002b, 002d, 0033, ff01
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601
JA4_rt13d0711h2_009c,1301,1302,1303,c013,c014,c030_000a,000b,000d,0017,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601
JA4_o (sample)t13d0711h2_aac05d9c9de8_aa44213e8c31
JA4_ro (sample)t13d0711h2_1301,1302,1303,c030,009c,c013,c014_0033,002d,0017,000d,0000,ff01,000b,002b,0010,0023,000a_0403,0804,0401,0503,0805,0501,0806,0601

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.3, +14 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p1

TCP SYN (p0f)

fingerprintco-occurrences
6:47+17:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1440_71

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.9 Safari/537.361

Country

fingerprintco-occurrences
FI · Finland1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH1