TCP SYN (JA4T)
65535_2-4-8-1-3_1280_10
first seen 2026-07-23 18:54 · last seen 2026-09-08 07:44 · JSON
Distinct clients per day (last 30 days, peak 5/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 | 1280 |
| Window scale | 10 |
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 |
|---|---|
t13d4412h1_fd39b124ee10_58ed7828516f | 25 |
t13d1515h1_8daaf6152771_de4a06bb82e3 | 12 |
t13d1515h1_8daaf6152771_0a20fe35d3a5 | 6 |
t13d1516h1_8daaf6152771_1a63afa7c478 | 1 |
HTTP request (JA4H)
| fingerprint | co-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. | 25 |
ge11nn13enus_9db22d02e17a_000000000000_000000000000 | 16 |
ge11nn14enus_4a2973d235de_000000000000_000000000000 | 3 |
TCP SYN (p0f)
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
ZA · South Africa | 44 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS37457 · Telkom SA Ltd. | 39 |
AS5713 · Telkom SA Ltd. | 3 |
AS20011 · Dimension Data | 2 |