User-Agent

Java/21.0.11

first seen 2026-07-01 16:16 · last seen 2026-07-01 16:16 · JSON

Decomposed attributes

Browser / clientJava 21.0.11
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

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.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d311200_1d947a95fc68_7e1102d2036b Match?Exact match in Thumbprint's published controlled catalog captures: java-urlconnection 17.0.19.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_5192a00d9159_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: java-urlconnection 1.8.0_492, java-urlconnection 17.0.19, java-urlconnection 17.0.12, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:42+22:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

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

Country

fingerprintco-occurrences
DE · Germany1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH1