TCP SYN (p0f)
4:42+22:0:1460:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:df:0
first seen 2026-07-01 15:47 · last seen 2026-08-08 18:57 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 42+22 |
|---|
| Options length | 0 |
|---|
| MSS | 1460 |
|---|
| Window size | 65535 |
|---|
| Window scale | 6 |
|---|
| Options layout | mss,nop,ws,nop,nop,ts,sok,eol+1 |
|---|
| Quirks | df |
|---|
| 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 |
|---|
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
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. | 1 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
US · United States | 2 |
FR · France | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS46375 · Sonic Telecom LLC | 2 |
AS51207 · Free Mobile SAS | 1 |