User-Agent

Custom-AsyncHttpClient

first seen 2026-06-19 08:48 · last seen 2026-07-04 00:29 · JSON

Decomposed attributes

Browser / clientCustom-AsyncHttpClient
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
t13i170900_5b57614c22b0_78e6aca7449b6

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn070000_f1c095c421c4_000000000000_0000000000002
ge11nn050000_7426b1434792_000000000000_0000000000002
ge11nn060000_fe790995c291_000000000000_0000000000001
ge11nn040000_7ec74cb64459_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:42+22:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_74

Country

fingerprintco-occurrences
SG · Singapore6

Network (ASN)

fingerprintco-occurrences
AS45102 · Alibaba (US) Technology Co., Ltd.6