TCP SYN (p0f)

4:47+17:0:1460:65535,10:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-02 19:33 · last seen 2026-09-16 06:52 · JSON

Last 7 days (3 observations)

Distinct clients per day (last 30 days, peak 2/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 TTL47+17
Options length0
MSS1460
Window size65535
Window scale10
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
t13d4412h1_fd39b124ee10_58ed7828516f6
t13d1515h1_8daaf6152771_0a20fe35d3a54
t13d1516h1_8daaf6152771_1a63afa7c4782
t13d1515h1_8daaf6152771_de4a06bb82e32
t13d1011h1_61a7ad8aa9b6_3fcd1a44f3e31
t13d2013h1_2b729b4bf6f3_e24568c0d4401
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 152.0.7977.64, chrome 152.0.7977.65, +5 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.6
ge11nn14enus_4a2973d235de_000000000000_0000000000004
ge11nn13enus_9db22d02e17a_000000000000_0000000000004
ge11nn040000_cf1edba2959c_000000000000_0000000000001
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.1
ge20nn13enus_9519c2577190_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
65535_2-4-8-1-3_1460_1017

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.361
Googlebot1
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.361
curl/8.21.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_16_0) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/80.0.3987.116 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.361

Country

fingerprintco-occurrences
CI · Côte d’Ivoire4
ZA · South Africa3
US · United States2
NG · Nigeria2
HK · Hong Kong SAR China1
GB · United Kingdom1
LT · Lithuania1
JM · Jamaica1
MU · Mauritius1
GY · Guyana1

Network (ASN)

fingerprintco-occurrences
AS29571 · Orange Côte d'Ivoire4
AS36873 · Airtel Networks Limited2
AS329045 · Ilitha Infrastructure (Pty) Ltd2
AS14593 · Space Exploration Technologies Corporation1
AS5089 · Virgin Media Limited1
AS4760 · HKT Limited1
AS20115 · Charter Communications LLC1
AS213772 · BK Customers1
AS30689 · FLOW1
AS23889 · Mauritius Telecom Ltd1