HTTP/2 frames (Akamai)

2:0;1:4096;8:0;3:1024;4:1048576|25100289|0|a,p,m,s

first seen 2026-06-12 09:38 · last seen 2026-10-31 05:46 · JSON

Last 7 days (97 observations)

Distinct clients per day (last 30 days, peak 22/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, "3": 1024, "4": 1048576, "8": 0}
WINDOW_UPDATE25100289
PRIORITY frames0
Pseudo-header ordera,p,m,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
t13d1712h2_5b57614c22b0_ef7df7f74e48831
t13d1713h2_5b57614c22b0_02c8e53ee398336
t13d1712h2_5b57614c22b0_d5fe2c511efa169

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn06enus_32386ca2063f_000000000000_000000000000603
ge20nn060000_ae91ff777030_000000000000_000000000000573
ge20nn070000_f327ee591e3a_000000000000_00000000000076
ge20nn07enus_bba0b359f971_000000000000_00000000000066
ge20nr040000_ac162d8a7b0c_000000000000_00000000000018

TCP SYN (p0f)

fingerprintco-occurrences
4:43+21:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0210
4:44+20:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0187
4:47+17:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0114
4:48+16:0:1368:64860,9:mss,sok,ts,nop,ws:df,id+:0105
4:44+20:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:079
4:39+25:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:072
4:48+16:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:072
4:49+15:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:070
4:38+26:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:059
4:43+21:0:1418:mss*44,9:mss,sok,ts,nop,ws:df,id+:050

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1418_9593
64860_2-4-8-1-3_1368_9574
65535_2-4-8-1-3_1390_1218

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ChatGPT-User/1.0; +https://openai.com/bot669
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.0; +https://openai.com/searchbot649
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)18

Country

fingerprintco-occurrences
US · United States847
AU · Australia56
JP · Japan52
CH · Switzerland45
DK · Denmark44
PL · Poland43
DE · Germany33
KR · South Korea31
ES · Spain31
NZ · New Zealand31

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation1336

TLS supported groups

fingerprintco-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.219