TCP SYN (p0f)
4:116+12:0:1360:65535,8:mss,nop,ws,nop,nop,sok::0
first seen 2026-09-09 01:52 · last seen 2026-09-09 01:52 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 116+12 |
|---|
| Options length | 0 |
|---|
| MSS | 1360 |
|---|
| Window size | 65535 |
|---|
| Window scale | 8 |
|---|
| Options layout | mss,nop,ws,nop,nop,sok |
|---|
| 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)
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +85 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +60 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:256|m,a,s,p | 1 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
JP · Japan | 5 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS2514 · NTT PC Communications, Inc. | 5 |
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).