TCP SYN (p0f)

4:118+10:0:1460:62720,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-09-10 18:24 · last seen 2026-10-27 08:08 · JSON

Last 7 days (7 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 TTL118+10
Options length0
MSS1460
Window size62720
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d1812h1_85036bcba153_b26ce05bbdd647
t13d1812h1_85036bcba153_d41ae481755e19
t13d181100_85036bcba153_d41ae481755e7
t13d1813h1_85036bcba153_d339722ba4af4

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn07enus_6f5b1826d533_000000000000_00000000000022
ge11nr07enus_6f5b1826d533_000000000000_00000000000021
ge11nn050000_3658ef221638_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.21.4, wget 1.25.0, wget 1.21.3.The fingerprint page shows the full measured match list. More on the catalog.7
ge11nn060000_a284f3d85baf_000000000000_0000000000006
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000005
po11nr10enus_af6b54c809f5_000000000000_0000000000005
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.4
ge11nn06enus_98e697c2fa06_000000000000_0000000000003
po11nn060000_d8e0803a0d25_000000000000_0000000000003
po11nn070000_8ac9602a949b_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
62720_2-1-3-1-1-4_1460_877

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.369
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.07
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.366
Mozilla/5.04
cve-2026-63030/1.04
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 Edg/124.0.0.02
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.152
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Safari/605.1.152

Country

fingerprintco-occurrences
JP · Japan44
AU · Australia30
SG · Singapore3

Network (ASN)

fingerprintco-occurrences
AS31898 · Oracle Corporation77

TLS supported groups

fingerprintco-occurrences
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog.32