TCP SYN (p0f)
4:53+11:0:1320:mss*49,7:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-07-06 13:45 · last seen 2026-07-06 13:45 · JSON
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 53+11 |
| Options length | 0 |
| MSS | 1320 |
| Window size | mss*49 |
| Window scale | 7 |
| Options layout | mss,sok,ts,nop,ws |
| 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)
| fingerprint | co-occurrences |
|---|---|
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn13enus_016d87568c43_000000000000_000000000000 | 1 |
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. | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64680_2-4-8-1-3_1320_7 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:148.0) Gecko/20100101 Firefox/148.0 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS11878 · tzulo, inc. | 1 |