HTTP/2 frames (Akamai)

3:1000;2:0;4:6291456;1:4096|15663105|0|s,m,p,a

first seen 2026-07-21 19:34 · last seen 2026-08-17 15:12 · 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, "3": 1000, "4": 6291456}
WINDOW_UPDATE15663105
PRIORITY frames0
Pseudo-header orders,m,p,a

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
t13d4913h2_bd868743f55c_aac33385513614

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr12engb_f8a3a1e39dc3_000000000000_0000000000002
ge20nr12engb_54b4638ab28b_000000000000_0000000000002
ge20nr12enus_f8a3a1e39dc3_000000000000_0000000000002
ge20nn13engb_3698ed0fb8b4_000000000000_0000000000001
ge20nn13engb_0c2c1d640f3e_000000000000_0000000000001
ge20nn13enus_e2c7f8e37efc_000000000000_0000000000001
ge20nn14enus_3cf2e071bbd5_000000000000_0000000000001
ge20nn13enus_e66716e13e58_000000000000_0000000000001
ge20nn14enus_3920ee50bd52_000000000000_0000000000001
ge20nr13enus_e66716e13e58_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:36+28:0:1460:65228,7:mss,nop,ws,sok,ts:df:08
4:50+14:0:1340:mtu*47,7:mss,sok,ts,nop,ws:df,id+:03
4:55+9:0:1460:mss*44,8:mss,sok,ts,nop,ws:df,id+:03

TCP SYN (JA4T)

fingerprintco-occurrences
65228_2-1-3-4-8_1460_78
64240_2-4-8-1-3_1460_83
64860_2-4-8-1-3_1340_73

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.368
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.363

Country

fingerprintco-occurrences
RU · Russia8
SG · Singapore3
GB · United Kingdom3

Network (ASN)

fingerprintco-occurrences
AS41601 · NEO Print Ltd.8
AS9009 · M247 Europe SRL3
AS39351 · 31173 Services AB3