TCP SYN (p0f)
4:47+17:0:1400:65535,9:mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws:df,id+:0
first seen 2026-07-26 07:05 · last seen 2026-09-08 01:56 · 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
| IP version | 4 |
|---|---|
| Initial TTL | 47+17 |
| Options length | 0 |
| MSS | 1400 |
| Window size | 65535 |
| Window scale | 9 |
| Options layout | mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws |
| Quirks | df,id+ |
| Payload class | 0 |
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 | 2 |
t13d1515h1_8daaf6152771_0a20fe35d3a5 | 1 |
t13d1515h1_8daaf6152771_de4a06bb82e3 | 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. | 2 |
ge11nn14enus_4a2973d235de_000000000000_000000000000 | 1 |
ge11nn13enus_9db22d02e17a_000000000000_000000000000 | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65535_2-4-1-1-1-1-1-1-1-1-1-1-1-3_1400_9 | 4 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
NG · Nigeria | 2 |
PK · Pakistan | 2 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS56167 · PTML | 2 |
AS36873 · Airtel Networks Limited | 2 |