TCP SYN (p0f)
4:111+17:0:1300:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0
first seen 2026-09-12 09:53 · last seen 2026-10-10 00:52 · JSON
Distinct clients per day (last 30 days, peak 1/day)
Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 111+17 |
| Options length | 0 |
| MSS | 1300 |
| Window size | mss*44 |
| Window scale | 8 |
| Options layout | mss,nop,ws,nop,nop,sok |
| 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 |
|---|---|
t13d1712h1_ab0a1bf427ad_882d495ac381 | 2 |
t13d1812h1_85036bcba153_b26ce05bbdd6 | 1 |
t13d1312h2_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +7 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-1-3-1-1-4_1300_8 | 4 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
ID · Indonesia | 3 |
BR · Brazil | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS139952 · PT Trisari Data Indonusa | 3 |
AS270535 · S DE OLIVEIRA FILHO | 1 |