HTTP/2 frames (Akamai)

4:16777216|16711681|0|m,p,a,s

first seen 2026-06-11 16:05 · last seen 2026-09-13 13:31 · JSON

Last 7 days (2 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

SETTINGS{"4": 16777216}
WINDOW_UPDATE16711681
PRIORITY frames0
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
t13d1513h2_8daaf6152771_eca864cca44a50
t13d1114h2_5e2a75874763_89e9e4bb341945
t13d1514h2_8daaf6152771_a5b99884f7f59
t13d1514h2_8daaf6152771_43ade6aba3df4
t12d1209h2_d34a8e72043a_b39be8c56a144
t13d1515h2_8daaf6152771_e8ed158c4d853
t12d1208h2_d34a8e72043a_31a7e1922da82
t12d0812h2_6aee0a5c6037_70b99c08f4661

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_80b089f68b8e_000000000000_00000000000044
ge20nn020000_fb4f949fd323_000000000000_00000000000019
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.0, go-net/http 1.26.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.18
ge20nn030000_6dac75bd47eb_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1.The fingerprint page shows the full measured match list. More on the catalog.12
ge20nn030000_ce733c3c54ce_000000000000_0000000000008
ge20nn030000_ff50983941c1_000000000000_0000000000006
ge20nn030000_b74f9ffb1cea_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.4
ge20nn04enus_39a3ba4480e8_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2.The fingerprint page shows the full measured match list. More on the catalog.3
ge20nn10enus_5229ea5d115b_000000000000_0000000000001
ge20nn040000_6ac56c7249a2_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:117+11:0:1440:65535,8:mss,nop,ws,sok,ts:df,id+:013
4:119+9:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:012
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:010
4:49+15:0:1452:65535,10:mss,sok,ts,nop,ws:df,id+:09
4:117+11:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:08
4:119+9:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:06
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:43+21:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1460:65535,8:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_719
62727_2-4-8-1-3_1460_1018
65535_2-1-3-4-8_1440_813
65535_2-4-8-1-3_1452_109
62727_2-4-8-1-3_1460_78
65535_2-4-8-1-3_1440_86
65535_2-4-8-1-3_1460_86
65535_2-4-8-1-3_1452_84
65535_2-1-3-1-1-8-4-0-0_1380_64
64240_2-4-8-1-3_1460_103

User-Agent

fingerprintco-occurrences
Harmonic-HN-Android/3.0.1/release33
okhttp/5.3.017
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Mobile/15E148 Safari/604.113
okhttp/4.12.011
tcpfp/16
Harmonic-HN-Android/3.0.2/release5
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.364
SpaceCowboys Android RSS Reader / 2.21.1(4025)3
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.362

Country

fingerprintco-occurrences
US · United States46
DE · Germany15
RU · Russia14
CA · Canada12
AU · Australia4
FR · France4
LB · Lebanon4
IN · India3
EG · Egypt3
BR · Brazil2

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.30
AS12389 · PJSC Rostelecom13
AS577 · Bell Canada9
AS35042 · Layer7 Networks GmbH9
AS9051 · IncoNet Data Management sal4
AS16276 · OVH SAS3
AS174 · Cogent Communications, LLC3
AS7922 · Comcast Cable Communications, LLC3
AS3320 · Deutsche Telekom AG3
AS24863 · Link Egypt (Link.NET)3