TCP SYN (p0f)

4:55+9:0:1460:32768,10:mss,nop,ws,sok,ts::0

first seen 2026-09-15 15:53 · last seen 2026-09-23 05:39 · JSON

Decomposed attributes

IP version4
Initial TTL55+9
Options length0
MSS1460
Window size32768
Window scale10
Options layoutmss,nop,ws,sok,ts
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
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.2
t13d1516h2_8daaf6152771_e5627efa2ab12
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog.2
t13d4312h1_c7886603b240_b26ce05bbdd61
t13d2014h2_a09f3c656075_14788d8d241b1
t13d3113h2_e8f1e7e78f70_1b3407e2c9361
t13d1410h2_15c1305fa4d5_5603904660151
t13d1110h2_d396e83630d8_5603904660151

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn12enus_60f823d07c94_000000000000_0000000000002
ge20nn11enus_3901d4197baf_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.2
ge20nn13enus_0c2c1d640f3e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 151.0.7922.137, chrome 151.0.7922.170, chrome 151.0.7922.108, +39 more.The fingerprint page shows the full measured match list. More on the catalog.2
ge20nn04enus_989c7cc05c9b_000000000000_0000000000002
ge20nr030000_ff50983941c1_000000000000_0000000000001
ge20nn07enus_39faa4ed05e7_000000000000_0000000000001
ge11nr07*000_ac4db679fb33_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, +60 more.The fingerprint page shows the full measured match list. More on the catalog.2
1:65536;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p2
1:65536;2:0;4:131072;5:16384|12517377|1:0:0:42|m,p,a,s2
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p2
3:100;4:33554432;2:0|33488897|0|m,p,s,a Match?Exact match in Thumbprint's published controlled catalog captures: php-curl 7.88.1, curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.1
2:0;4:4194304;3:100|10485760|1:0:0:255|m,s,p,a1

TCP SYN (JA4T)

fingerprintco-occurrences
32768_2-1-3-4-8_1460_1011

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.8 Safari/537.362
Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.4 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.1 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.2 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.0 Safari/605.1.151
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.9 Safari/537.361
Mozilla/5.0 (Linux; Android 7.0; BRAVIS X500) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.117 Mobile Safari/537.361
Opera/9.22 (Windows NT 5.1; U; SV1; MEGAUPLOAD 1.0; ru)1
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.1) Gecko/20100101 Firefox/137.11

Country

fingerprintco-occurrences
NL · Netherlands11

Network (ASN)

fingerprintco-occurrences
AS215125 · Church of Cyberology11