QUIC transport params

q13_c3e7031b10dc

first seen 2026-09-02 08:32 · last seen 2026-09-16 11:18 · JSON

Last 7 days (14 observations)

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

Transport-parameter count	`13`
Transport-parameter IDs	`0001, 0004, 0005, 0006, 0007, 0008, 0009, 000b, 000e, 000f, 0011, 001d, 0020`
QTP raw	`q13_0001,0004,0005,0006,0007,0008,0009,000b,000e,000f,0011,001d,0020`

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
`q13d0315h3_55b375c5d22e_dc5437974b47` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +18 more.The fingerprint page shows the full measured match list. More on the catalog.	23
`q13d0315h3_55b375c5d22e_78345df32b3a`	2
`q13d0315h3_55b375c5d22e_bb76f32061e3`	1

HTTP request (JA4H)

fingerprint	co-occurrences
`ge30nr09enus_a060b6642c5e_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +22 more.The fingerprint page shows the full measured match list. More on the catalog.	4
`ge30nn10enus_9fcbd3f1e2d6_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.6, +18 more.The fingerprint page shows the full measured match list. More on the catalog.	3
`ge30nr11enus_c87d53636918_000000000000_000000000000`	2
`ge30nr12enus_57c544194b26_000000000000_000000000000`	2
`ge30nr10enus_23a803442ffa_000000000000_000000000000`	2
`ge30nn12de00_35ca41c56357_000000000000_000000000000`	1
`ge30nn11enus_785a2b2bce74_000000000000_000000000000`	1
`ge30nr10engb_9fcbd3f1e2d6_000000000000_000000000000`	1
`ge30nr12enus_78b49e421c42_000000000000_000000000000`	1
`ge30nr11enus_437a8cac39d6_000000000000_000000000000`	1

User-Agent

fingerprint	co-occurrences
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:155.0) Gecko/20100101 Firefox/155.0`	9
`Mozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/20100101 Firefox/155.0`	6
`Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:155.0) Gecko/20100101 Firefox/155.0`	6
`Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0`	2
`Mozilla/5.0 (Android 17; Mobile; rv:155.0) Gecko/155.0 Firefox/155.0`	2
`Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:156.0) Gecko/20100101 Firefox/156.0`	1

Country

fingerprint	co-occurrences
`ES` · Spain	7
`SE` · Sweden	6
`DE` · Germany	5
`US` · United States	2
`GB` · United Kingdom	2
`RU` · Russia	2
`PT` · Portugal	2

Network (ASN)

fingerprint	co-occurrences
`AS3352` · TELEFONICA DE ESPANA S.A.U.	6
`AS3301` · Telia Company AB	6
`AS3209` · Vodafone GmbH	3
`AS7922` · Comcast Cable Communications, LLC	2
`AS20712` · Andrews & Arnold Ltd	2
`AS42610` · OJSC National Cable Networks	2
`AS12353` · Vodafone Portugal	2
`AS3320` · Deutsche Telekom AG	1
`AS51202` · NUXOA GmbH	1
`AS12334` · R Cable y Telecable Telecomunicaciones, S.A.U.	1

Cross-transport links

TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).

fingerprint	linked observations
`t13d1517h2_8daaf6152771_3cbfd9057e0d`	5
`t13d1516h2_8daaf6152771_0c27189014cf`	4
`t13d1517h2_8daaf6152771_3e9721a6796e`	1