TCP SYN (p0f)

4:111+17:0:1329:29184,7:mss,sok,ts,nop,ws::0

first seen 2026-10-23 22:07 · last seen 2026-10-23 22:45 · JSON

Distinct clients per day (last 30 days, peak 8/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

IP version4
Initial TTL111+17
Options length0
MSS1329
Window size29184
Window scale7
Options layoutmss,sok,ts,nop,ws
Payload class0

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
t13d3013h2_1d37bd780c83_8537cf56674e8

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn030000_bf75ddd0bb29_000000000000_0000000000008

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.8

TCP SYN (JA4T)

fingerprintco-occurrences
29184_2-4-8-1-3_1329_78

User-Agent

fingerprintco-occurrences
curl/8.14.18

Country

fingerprintco-occurrences
TH · Thailand2
US · United States1
JP · Japan1
KR · South Korea1
MX · Mexico1
ID · Indonesia1
RU · Russia1

Network (ASN)

fingerprintco-occurrences
AS45758 · Advanced Wireless Network Company Limited2
AS7922 · Comcast Cable Communications, LLC1
AS4766 · Korea Telecom1
AS265594 · Television Internacional, S.A. de C.V.1
AS17451 · BIZNET NETWORKS1
AS2527 · Sony Network Communications Inc.1
AS8334 · JOINT-STOCK COMPANY TELEPORT TELECOM1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.22.1, python-httpx 0.28.1, python-requests 2.34.2, +2 more.The fingerprint page shows the full measured match list. More on the catalog.8