TCP SYN (p0f)
4:42+22:0:1300:mss*32,9:mss,nop,ws,sok,ts:df,id+:0
first seen 2026-09-18 05:05 · last seen 2026-09-18 05:38 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 42+22 |
|---|
| Options length | 0 |
|---|
| MSS | 1300 |
|---|
| Window size | mss*32 |
|---|
| Window scale | 9 |
|---|
| 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)
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|
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, +57 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
JP · Japan | 5 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS138384 · Rakuten Mobile Network, Inc. | 5 |