User-Agent

quic-go HTTP/3

first seen 2026-06-11 00:08 · last seen 2026-10-22 14:07 · JSON

Distinct clients per day (last 30 days, peak 2/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Browser / client	`quic-go HTTP 3`
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
`q13d0312h3_55b375c5d22e_c183556c78e2`	38
`q13d0313h3_55b375c5d22e_f902b76752af`	3
`q13i0311h3_55b375c5d22e_c183556c78e2`	2

HTTP request (JA4H)

fingerprint	co-occurrences
`ge30nr030000_2601ed496936_000000000000_000000000000`	37
`ge30nn020000_b89ce445e0b3_000000000000_000000000000`	2
`ge30nn060000_bf32bba43e73_000000000000_000000000000`	1
`ge30nn040000_56db3665e6ca_000000000000_000000000000`	1
`po30nn050000_8c5c403b7d83_000000000000_000000000000`	1
`ge30nr040000_56db3665e6ca_000000000000_000000000000`	1

QUIC transport params

fingerprint	co-occurrences
`q12_67a81e69c992`	37
`q13_dd847bf90808`	3
`q11_018670849428`	2
`q12_83b242590923`	1

Country

fingerprint	co-occurrences
`US` · United States	13
`DE` · Germany	7
`SG` · Singapore	6
`JP` · Japan	5
`GB` · United Kingdom	5
`AE` · United Arab Emirates	4
`TR` · Turkey	2
`AU` · Australia	1

Network (ASN)

fingerprint	co-occurrences
`AS45102` · Alibaba (US) Technology Co., Ltd.	40
`AS20978` · TT Mobil Iletisim Hizmetleri A.S	2
`AS38195` · Superloop	1

TLS supported groups

fingerprint	co-occurrences
`001d,0017,0018,0019` Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.	4