TCP SYN (p0f)
4:107+21:0:1267:65280,13:mss,sok,ts,nop,ws::0
first seen 2026-10-29 08:59 · last seen 2026-10-29 08:59 · JSON
Last 7 days (1 observations)
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 | 107+21 |
| Options length | 0 |
| MSS | 1267 |
| Window size | 65280 |
| Window scale | 13 |
| Options layout | mss,sok,ts,nop,ws |
| 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 |
|---|---|
t13d1516h2_8daaf6152771_e5627efa2ab1 | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nr11enus_d3df502de9f6_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65280_2-4-8-1-3_1267_13 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
TH · Thailand | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS133481 · AIS Fibre | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
0a0a,001d,0017,0018 | 1 |