TCP SYN (JA4T)
62727_2-1-3-1-1-4_1460_8
first seen 2026-10-23 05:15 · last seen 2026-10-27 18:56 · JSON
Last 7 days (1 observations)
Distinct clients per day (last 30 days, peak 2/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
| TCP window | 62727 |
|---|---|
| Option kinds | 2-1-3-1-1-4 |
| MSS | 1460 |
| Window scale | 8 |
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 |
|---|---|
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog. | 5 |
HTTP request (JA4H)
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:123+5:0:1460:62727,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0 | 5 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
AU · Australia | 5 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS16509 · Amazon.com, Inc. | 5 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
11ec,11eb,11ed,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog. | 5 |