TCP SYN (p0f)
4:50+14:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:0
first seen 2026-06-27 07:22 · last seen 2026-09-25 19:21 · JSON
Decomposed attributes
| IP version | 4 |
|---|
| Initial TTL | 50+14 |
|---|
| Options length | 0 |
|---|
| MSS | 1460 |
|---|
| Window size | mss*5 |
|---|
| Window scale | 10 |
|---|
| Options layout | mss,sok,ts,nop,ws |
|---|
| Quirks | df,id+,ecn |
|---|
| 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 |
|---|
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p | 11 |
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. | 8 |
2:0;4:4194304;5:1048576;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.3, go-net/http 1.27.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|
US · United States | 16 |
JP · Japan | 2 |
DE · Germany | 1 |
SG · Singapore | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS45102 · Alibaba (US) Technology Co., Ltd. | 20 |