User-Agent

bun-fingerprint-check/1.0

first seen 2026-06-21 09:01 · last seen 2026-06-21 09:56 · JSON

Decomposed attributes

Browser / clientbun-fingerprint-check 1.0
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
t13d1714h1_5b57614c22b0_43ade6aba3df4

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_217776c81665_000000000000_0000000000004

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1412:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:01
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:42+22:0:1412:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df,ecn:01
4:40+24:0:1460:42300,11:mss,sok,ts,nop,ws:df,id+:01

Country

fingerprintco-occurrences
CN · China2
KR · South Korea1
HK · Hong Kong SAR China1

Network (ASN)

fingerprintco-occurrences
AS45102 · Alibaba (US) Technology Co., Ltd.2
AS4134 · CHINANET BACKBONE2