TCP SYN (p0f)
4:45+19:0:1412:mss*20,4:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-09-16 05:57 · last seen 2026-09-16 05:57 · JSON
Last 7 days (1 observations)
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 45+19 |
| Options length | 0 |
| MSS | 1412 |
| Window size | mss*20 |
| Window scale | 4 |
| 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 |
|---|---|
t13d2013h2_a09f3c656075_7f0f34a4126d Match?Exact match in Thumbprint's published controlled catalog captures: safari 26.5.2, safari 26.4, safari 26.6.2, +2 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn08ensg_1945e0741196_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
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 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
29200_2-4-8-1-3_1412_4 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (iPhone; CPU iPhone OS 26_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0 Mobile/15E148 Safari/604.1 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
SG · Singapore | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS55430 · Starhub Ltd | 1 |