HTTP/2 frames (Akamai)

1:4096;2:0;4:32768;5:16384|12517377|5:0:0:22|m,p,a,s

first seen 2026-07-01 15:07 · last seen 2026-08-30 13:55 · JSON

Distinct clients per day (last 30 days, peak 1/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

SETTINGS{"1": 4096, "2": 0, "4": 32768, "5": 16384}
WINDOW_UPDATE12517377
PRIORITY frames5:0:0:22
Pseudo-header orderm,p,a,s

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
t13d1616h2_86a278354501_eeeea656296014
t13d1516h2_8daaf6152771_eeeea65629603
t13d1615h2_86a278354501_5c2c66f702b01
t13d1714h2_5b57614c22b0_3dd24b5ebec41
t13d1613h2_86a278354501_748f4c70de1c1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr10enus_b3034183f430_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +21 more.The fingerprint page shows the full measured match list. More on the catalog.5
ge20nr10zhcn_b3034183f430_000000000000_0000000000005
ge20nr09zhcn_bfc092dff6c6_000000000000_0000000000004
ge20nr12engb_d82c6d999d30_000000000000_0000000000002
ge20nr11enus_187a9385d229_000000000000_0000000000002
ge20nr10enno_b3034183f430_000000000000_0000000000001
ge20nr12enus_1204b4dfdccd_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:49+15:0:1460:mss*44,11:mss,sok,ts,nop,ws:df,id+:09
4:54+10:0:1286:65535,9:mss,sok,ts,nop,ws:df,id+:02
4:52+12:0:1460:65535,8:mss,sok,ts,nop,ws:df,id+:01
6:57+7:0:1440:mss*45,7:mss,sok,ts,nop,ws:flow:01
4:47+17:0:1460:65535,8:mss,sok,ts,nop,ws:df,id+:01
6:47+17:0:1220:65535,9:mss,sok,ts,nop,ws:flow:01
6:59+5:0:1440:mss*30,11:mss,nop,nop,sok,nop,ws:flow:01
4:138+?:0:1400:65535,10:mss,nop,nop,sok,nop,ws:df,id+:01
4:244+11:0:1460:mss*3,2:mss,nop,ws,sok,ts:df,id+:01
4:244+11:0:1400:mss*3,2:mss,nop,ws,sok,eol+1:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_119
65535_2-4-8-1-3_1460_82
65535_2-4-8-1-3_1286_92
64800_2-4-8-1-3_1440_71
65535_2-4-8-1-3_1220_91
59640_2-1-3-4-8_1420_81
43200_2-1-1-4-1-3_1440_111
65535_2-1-1-4-1-3_1400_101
4380_2-1-3-4-8_1460_21
4200_2-1-3-4-0-0_1400_21

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Android 14; Mobile; rv:153.0) Gecko/153.0 Firefox/153.07
Mozilla/5.0 (Android 16; Mobile; rv:152.0) Gecko/152.0 Firefox/152.02
Mozilla/5.0 (Android 10; Mobile; rv:152.0) Gecko/152.0 Firefox/152.02
Mozilla/5.0 (Android 15; Mobile; rv:152.0) Gecko/152.0 Firefox/152.02
Mozilla/5.0 (Android 14; Mobile; rv:154.0) Gecko/154.0 Firefox/154.02
Mozilla/5.0 (Android 17; Mobile; rv:151.0) Gecko/151.0 Firefox/151.01
Mozilla/5.0 (Android 10; Mobile; rv:140.0) Gecko/140.0 Firefox/140.01
Mozilla/5.0 (Android 15; Mobile; rv:153.0) Gecko/153.0 Firefox/153.01
Mozilla/5.0 (Android 11; Mobile; rv:152.0) Gecko/152.0 Firefox/152.01
Mozilla/5.0 (Android 16; Mobile; rv:154.0) Gecko/154.0 Firefox/154.01

Country

fingerprintco-occurrences
ID · Indonesia12
PL · Poland2
DE · Germany1
US · United States1
NO · Norway1
NL · Netherlands1
FR · France1
IT · Italy1

Network (ASN)

fingerprintco-occurrences
AS45102 · Alibaba (US) Technology Co., Ltd.9
AS23693 · PT. Telekomunikasi Selular3
AS41508 · ZINET.NET.PL Sp. z.o.o.2
AS60729 · Stiftung Erneuerbare Freiheit1
AS22773 · Cox Communications Inc.1
AS15557 · Societe Francaise Du Radiotelephone - SFR SA1
AS12874 · Fastweb SpA1
AS15659 · NextGenTel AS1
AS56971 · AS56971 Cloud1

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).

fingerprintlinked observations
q13d0315h3_55b375c5d22e_dc5437974b474