TCP SYN (p0f)
4:47+17:0:1452:8192,2:mss,nop,ws,sok,ts:df,id+:0
first seen 2026-10-11 07:12 · last seen 2026-10-11 07:12 · 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 | 1452 |
| Window size | 8192 |
| Window scale | 2 |
| Options layout | mss,nop,ws,sok,ts |
| 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 |
|---|---|
t13d1516h2_8daaf6152771_e5627efa2ab1 | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn12zhcn_616352908365_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 |
|---|---|
8192_2-1-3-4-8_1452_2 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
CN · China | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS9808 · China Mobile Communications Group Co., Ltd. | 1 |