TLS ClientHello (JA4)

t13d0306h2_55b375c5d22e_b0b305792b57

first seen 2026-09-16 06:17 · last seen 2026-09-16 06:17 · JSON

Decomposed attributes

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count3
Extension count6
ALPNh2
Ciphers1301, 1302, 1303
Extensions000a, 000d, 002b, 0033
Signature algorithms0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601
JA4_rt13d0306h2_1301,1302,1303_000a,000d,002b,0033_0403,0804,0401,0503,0805,0501,0806,0601
JA4_o (sample)t13d0306h2_55b375c5d22e_1ef2697006dd
JA4_ro (sample)t13d0306h2_1301,1302,1303_0000,000a,000d,0010,002b,0033_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
ge20nn04enus_7a3e7ceb300a_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:1048576;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.3, go-net/http 1.27.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_71

User-Agent

fingerprintco-occurrences
Mozilla/5.01

Country

fingerprintco-occurrences
DK · Denmark1

Network (ASN)

fingerprintco-occurrences
AS204151 · EWII Bredbaand A/S1