TCP SYN (p0f)
4:51+13:0:1344:65535,10:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-08-04 06:58 · last seen 2026-08-04 06:58 · JSON
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 51+13 |
| Options length | 0 |
| MSS | 1344 |
| Window size | 65535 |
| Window scale | 10 |
| 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 |
|---|---|
t13d3013h2_1d37bd780c83_8537cf56674e | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
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. | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65535_2-4-8-1-3_1344_10 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
curl/8.20.0 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
CZ · Czechia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS13036 · T-Mobile Czech Republic a.s. | 1 |