TCP SYN (p0f)
6:49+15:0:1420:mss*42,8:mss,nop,ws,sok,ts::0
first seen 2026-07-22 13:01 · last seen 2026-07-22 13:01 · JSON
Decomposed attributes
| IP version | 6 |
|---|
| Initial TTL | 49+15 |
|---|
| Options length | 0 |
|---|
| MSS | 1420 |
|---|
| Window size | mss*42 |
|---|
| Window scale | 8 |
|---|
| Options layout | mss,nop,ws,sok,ts |
|---|
| 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)
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
FR · France | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS15557 · Societe Francaise Du Radiotelephone - SFR SA | 1 |
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).