TCP SYN (p0f)
6:43+21:0:1440:mss*30,9:mss,nop,nop,ts,nop,ws:flow:0
first seen 2026-06-27 14:41 · last seen 2026-06-27 14:41 · JSON
Decomposed attributes
| IP version | 6 |
|---|---|
| Initial TTL | 43+21 |
| Options length | 0 |
| MSS | 1440 |
| Window size | mss*30 |
| Window scale | 9 |
| Options layout | mss,nop,nop,ts,nop,ws |
| Quirks | flow |
| 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 |
|---|---|
t13d1715h2_5b57614c22b0_a54fffd0eb61 | 4 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nr12enus_a4e537ffe33a_000000000000_000000000000 | 2 |
ge20nr13enus_47bedc02e943_000000000000_000000000000 | 1 |
ge20nn13enus_47bedc02e943_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +25 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. | 2 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.0 | 4 |
Country
| fingerprint | co-occurrences |
|---|---|
HR · Croatia | 4 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS60068 · Datacamp Limited | 4 |