HTTP/2 frames (Akamai)

1:16384;2:0;3:0;4:16777216;5:16384;6:393216|33488897|0|a,m,p,s

first seen 2026-06-11 10:32 · last seen 2026-10-31 17:41 · JSON

Last 7 days (11 observations)

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": 16384, "2": 0, "3": 0, "4": 16777216, "5": 16384, "6": 393216}
WINDOW_UPDATE33488897
PRIORITY frames0
Pseudo-header ordera,m,p,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
t13d3113h2_1d947a95fc68_7e1102d2036b Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 25.0.4.1, java-httpclient 25.0.3, +3 more.The fingerprint page shows the full measured match list. More on the catalog.11

HTTP request (JA4H)

fingerprintco-occurrences
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.7
ge20nn020000_e5a56608905c_000000000000_0000000000004

TCP SYN (p0f)

fingerprintco-occurrences
4:42+22:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:010
4:53+11:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_1010
42340_2-4-8-1-3_1460_121

User-Agent

fingerprintco-occurrences
AstraciaBot/1.0 (+https://astracia.com)7
AstraciaBot/1.0 (+https://astracia.com/bot)3
Mozilla/5.0 (compatible; KakaoBot/1.0; +https://developers.kakao.com/bot)1

Country

fingerprintco-occurrences
DE · Germany10
KR · South Korea1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH10
AS7625 · Kakao Corp1

TLS supported groups

fingerprintco-occurrences
001d,0017,0018,0019,001e,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 11.0.31.The fingerprint page shows the full measured match list. More on the catalog.11