TCP SYN (p0f)
4:51+13:0:1300:43080,12:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-09-19 00:48 · last seen 2026-09-19 09:23 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 51+13 |
|---|
| Options length | 0 |
|---|
| MSS | 1300 |
|---|
| Window size | 43080 |
|---|
| Window scale | 12 |
|---|
| 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)
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|
2:0;4:2097152;3:100|10485760|1:0:0:255|m,s,p,a | 2 |
2:0;4:2097152;3:100|10485760|0|m,s,p,a | 2 |
2:0;3:100;4:2097152;9:1|10420225|1:0:0:256|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
2:0;3:100;4:2097152;9:1|10420225|3:0:0:256|m,s,a,p | 1 |
2:0;3:100;4:2097152;9:1|10420225|5:0:0:256|m,s,a,p | 1 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
US · United States | 7 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS701 · Verizon Business | 7 |