TCP SYN (p0f)
4:45+19:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+:0
first seen 2026-08-29 03:00 · last seen 2026-08-30 05:25 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 45+19 |
|---|
| Options length | 0 |
|---|
| MSS | 1440 |
|---|
| Window size | 65535 |
|---|
| Window scale | 8 |
|---|
| Options layout | mss,nop,ws,nop,nop,sok |
|---|
| 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)
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 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 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
TH · Thailand | 3 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS45758 · Advanced Wireless Network Company Limited | 3 |