TCP SYN (p0f)
4:49+15:0:1340:mss*44,10:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-08-23 05:20 · last seen 2026-08-23 05:20 · JSON
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 49+15 |
| Options length | 0 |
| MSS | 1340 |
| Window size | mss*44 |
| 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 |
|---|---|
t13d3012h2_1d37bd780c83_882d495ac381 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.21.0, curl 8.22.0, curl 8.23.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn11enus_db0d1d44b95a_000000000000_000000000000 | 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, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-4-8-1-3_1340_10 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
"Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Mobile/15E148 Safari/604." | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
SE · Sweden | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS39351 · 31173 Services AB | 1 |