TCP SYN (p0f)
6:239+16:0:1380:65535,6:mss,nop,ws,nop,nop,ts,sok,eol+1:ecn,flow:0
first seen 2026-10-01 21:28 · last seen 2026-10-01 21:28 · JSON
Decomposed attributes
| IP version | 6 |
| Initial TTL | 239+16 |
| Options length | 0 |
| MSS | 1380 |
| Window size | 65535 |
| Window scale | 6 |
| Options layout | mss,nop,ws,nop,nop,ts,sok,eol+1 |
| Quirks | ecn,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 |
t13d5212h1_b262b3658495_8e6e362c5eac Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.21.0, node-fetch 24.19.0, node-fetch 22.23.1, +9 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
US · United States | 1 |
Network (ASN)
| fingerprint | co-occurrences |
AS21928 · T-Mobile USA, Inc. | 1 |