TCP SYN (JA4T)
64860_2-4-8-1-3_1410_7
first seen 2026-06-30 00:13 · last seen 2026-10-29 23:54 · JSON
Last 7 days (20 observations)
Distinct clients per day (last 30 days, peak 6/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
| TCP window | 64860 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1410 |
| Window scale | 7 |
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)
| fingerprint | co-occurrences |
|---|---|
t13d1212h1_a538d02d76d5_f6eeaf393d2e | 83 |
t13d1516h2_8daaf6152771_806a8c22fdea Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +28 more.The fingerprint page shows the full measured match list. More on the catalog. | 83 |
t13d1011h2_61a7ad8aa9b6_f9531d972513 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.13.4, rust-hyper 1.11.0, rust-hyper 1.11.1, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 60 |
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog. | 42 |
t13d190900_9dc949149365_97f8aa674fd9 | 34 |
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog. | 19 |
t13d5212h1_b262b3658495_8e6e362c5eac Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.21.0, node-fetch 24.19.0, node-fetch 22.23.1, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 12 |
t13d1516h2_8daaf6152771_e5627efa2ab1 | 12 |
t13d330900_80cecea31fe6_9da38b6fd1bc Match?Exact match in Thumbprint's published controlled catalog captures: java-urlconnection 1.8.0_492.The fingerprint page shows the full measured match list. More on the catalog. | 11 |
t13d361000_bcee18a5b459_3550537cd59b | 7 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge11nn06*000_9faab82a4eea_000000000000_000000000000 | 83 |
ge20nr10enus_00ecf112ab34_000000000000_000000000000 | 63 |
ge20nn04*000_ded3c6d8f0eb_000000000000_000000000000 | 24 |
ge11nr05zhcn_f3bb7aa45ec4_000000000000_000000000000 | 21 |
ge11nn030000_cd680697de12_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.5, powershell 7.6.4, +11 more.The fingerprint page shows the full measured match list. More on the catalog. | 20 |
ge20nr12enus_f877544e67f2_000000000000_000000000000 | 20 |
ge11nn03zhcn_295e410d3834_000000000000_000000000000 | 17 |
ge11nr030000_cd680697de12_000000000000_000000000000 | 15 |
ge20nr090000_066de640a584_000000000000_000000000000 | 14 |
ge20nn04frfr_3b20e5b1deac_000000000000_000000000000 | 12 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
2:0;4:2097152;5:16384;6:16384|5177345|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.13.5, rust-reqwest 0.13.4, +4 more.The fingerprint page shows the full measured match list. More on the catalog. | 64 |
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, +57 more.The fingerprint page shows the full measured match list. More on the catalog. | 28 |
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +81 more.The fingerprint page shows the full measured match list. More on the catalog. | 25 |
1:65536;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p | 12 |
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 147.0.7727.15, chromium 145.0.7632.6, +26 more.The fingerprint page shows the full measured match list. More on the catalog. | 9 |
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:220|m,a,s,p | 9 |
1:65536;2:0;4:6291456;6:262144|15663105|11:1:0:220|m,a,s,p | 8 |
1:65536;2:0;4:6291456;6:262144|15663105|13:1:0:220|m,a,s,p | 8 |
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. | 6 |
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 156.0.8078.48, chrome 150.0.7871.128, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 6 |
TCP SYN (p0f)
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 166 |
DE · Germany | 97 |
FR · France | 66 |
CN · China | 45 |
NL · Netherlands | 9 |
SE · Sweden | 9 |
TR · Turkey | 3 |
CH · Switzerland | 1 |
GB · United Kingdom | 1 |
ID · Indonesia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS3356 · Level 3 Parent, LLC | 163 |
AS24940 · Hetzner Online GmbH | 97 |
AS199064 · QWANT SAS | 64 |
AS141679 · China Telecom Beijing Tianjin Hebei Big Data Industry Park Branch | 44 |
AS42708 · Glesys AB | 9 |
AS16276 · OVH SAS | 3 |
AS1133 · University Twente | 3 |
AS63473 · HostHatch, LLC | 3 |
AS23470 · ReliableSite.Net LLC | 2 |
AS51559 · Netinternet Bilisim Teknolojileri AS | 2 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 13 |
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog. | 8 |
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. | 6 |
11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
0a0a,001d,0017,0018 | 2 |
0017,0018,0019,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: java-urlconnection 1.8.0_492.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
11ec,11eb,11ed,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
11ec,11eb,11ee,001d,0017,001e,0018,0019,0029,0100,0101 | 2 |
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.3.1, curl 7.88.1, curl 8.13.0, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |