User-Agent

Dart/3.12 (dart:io)

first seen 2026-09-17 20:21 · last seen 2026-09-18 17:53 · JSON

Decomposed attributes

Browser / client	`Dart 3.12`
Note	`inferred 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)

fingerprint	co-occurrences
`t13d171000_5b57614c22b0_78e6aca7449b`	10

HTTP request (JA4H)

fingerprint	co-occurrences
`ge11nn030000_58c83775e1a3_000000000000_000000000000`	10

TCP SYN (p0f)

fingerprint	co-occurrences
`6:52+12:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0`	4
`4:54+10:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0`	2
`6:46+18:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0`	2
`4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0`	1
`6:55+9:0:1440:mss*45,10:mss,sok,ts,nop,ws:flow:0`	1

TCP SYN (JA4T)

fingerprint	co-occurrences
`64800_2-4-8-1-3_1440_10`	7
`64240_2-4-8-1-3_1460_10`	3

Country

fingerprint	co-occurrences
`US` · United States	10

Network (ASN)

fingerprint	co-occurrences
`AS132892` · Cloudflare, Inc.	7
`AS202623` · Cloudflare Inc	3