HTTP/2 frames (Akamai)
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p
first seen 2026-08-17 13:28 · last seen 2026-09-03 16:07 · JSON
Distinct clients per day (last 30 days, peak 517/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": 65536, "2": 0, "4": 1048576, "6": 262144}
WINDOW_UPDATE 15663105
PRIORITY frames 1:0:0:256
Pseudo-header order m,a,s,p
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)
HTTP request (JA4H)
TCP SYN (p0f)
fingerprint co-occurrences
4:54+10:0:1460:32768,10:mss,nop,ws,sok,ts::0505
4:50+14:0:1460:65535,9:mss,sok,ts,nop,ws:df,id+:0151
4:46+18:0:1460:mss*44,9:mss,nop,nop,sok,nop,ws:df,id+:0139
4:50+14:0:1460:mss*29,11:mss,nop,nop,sok,nop,ws:df,id+:0113
4:53+11:0:8902:mss*7,12:mss,sok,ts,nop,ws:df,id+,ecn:0105
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:093
4:53+11:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:076
4:47+17:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:073
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:059
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:058
TCP SYN (JA4T)
User-Agent
fingerprint co-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.4 Safari/537.3684
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.3 Safari/537.3684
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.1 Safari/537.3677
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.3671
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.7 Safari/537.3671
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.9 Safari/537.3668
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.8 Safari/537.3666
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.5 Safari/537.3665
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.2 Safari/537.3660
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.6 Safari/537.3656
Country
fingerprint co-occurrences
NL · Netherlands 651
DE · Germany 497
SE · Sweden 273
AT · Austria 139
US · United States 139
CH · Switzerland 67
NO · Norway 56
FR · France 55
RO · Romania 27
IT · Italy 20
Network (ASN)