TCP SYN (p0f)

4:245+10:0:1460:26883,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 15:37 · last seen 2026-08-12 23:38 · JSON

Decomposed attributes

IP version4
Initial TTL245+10
Options length0
MSS1460
Window size26883
Window scale7
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
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
t12d8008h1_9cedc1f1428b_046e095b7c4a6
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
he11nn030000_fe444ad14866_000000000000_0000000000003
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0.The fingerprint page shows the full measured match list. More on the catalog.3
ge20nn10enus_f7ad313dcc59_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +43 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
26883_2-4-8-1-3_1460_77

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; Feedspot/1.0 (+https://www.feedspot.com/fs/fetcher; like FeedFetcher-Google)6
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.97 Safari/537.361

Country

fingerprintco-occurrences
US · United States7

Network (ASN)

fingerprintco-occurrences
AS16509 · Amazon.com, Inc.6
AS14618 · Amazon.com, Inc.1