TCP SYN (JA4T)
65535_2-4-8-1-3_1460_3
first seen 2026-08-20 06:53 · last seen 2026-08-22 09:35 · JSON
Distinct clients per day (last 30 days, peak 1/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 | 65535 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1460 |
| Window scale | 3 |
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 |
|---|---|
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. | 65 |
t13d1516h2_8daaf6152771_33a51b5ad3c5 | 38 |
t13d1517h2_8daaf6152771_0bf6ec06e199 | 16 |
t13d1516h1_8daaf6152771_33a51b5ad3c5 | 15 |
t13d1517h2_8daaf6152771_520bb30278ac | 12 |
t13d1516h2_8daaf6152771_e5627efa2ab1 | 7 |
t13d1910h2_765f8cc403f2_8846e450cd95 | 7 |
t13d1516h1_8daaf6152771_d8a2da3f94cd | 7 |
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. | 4 |
t13d2013h2_a09f3c656075_2590684db98f | 3 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
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, +23 more.The fingerprint page shows the full measured match list. More on the catalog. | 24 |
ge20nn13eses_0c2c1d640f3e_000000000000_000000000000 | 15 |
ge20nn13ptbr_0c2c1d640f3e_000000000000_000000000000 | 11 |
ge20nn13engb_0c2c1d640f3e_000000000000_000000000000 | 11 |
ge20nn13jajp_0c2c1d640f3e_000000000000_000000000000 | 11 |
ge20nn13enus_0e897bb088aa_000000000000_000000000000 | 10 |
ge20nn13dede_0c2c1d640f3e_000000000000_000000000000 | 8 |
ge20nn13frfr_0c2c1d640f3e_000000000000_000000000000 | 7 |
ge20nn10enus_d353d425b0bb_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 152.0.1.The fingerprint page shows the full measured match list. More on the catalog. | 6 |
ge20nn11ruru_3901d4197baf_000000000000_000000000000 | 5 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|0|m,p,a,s | 35 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p | 21 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|3:1:0:256|m,a,s,p | 16 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|5:1:0:256|m,a,s,p | 14 |
1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p | 13 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|7:1:0:256|m,a,s,p | 11 |
2:0;4:4194304;3:100|10485760|0|m,s,p,a Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2.The fingerprint page shows the full measured match list. More on the catalog. | 7 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|19:1:0:256|m,a,s,p | 4 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|9:1:0:256|m,a,s,p | 4 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|11:1:0:256|m,a,s,p | 4 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:47+17:0:1460:65535,3:mss,sok,ts,nop,ws:df,id+:0 | 183 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
NL · Netherlands | 183 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS197170 · TechTies Inc. | 183 |