TCP SYN (JA4T)
33120_2-4-8-1-3_1440_7
first seen 2026-08-24 07:53 · last seen 2026-09-02 23:42 · 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
| TCP window | 33120 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1440 |
| Window scale | 7 |
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 |
|---|---|
t13d311100_e8f1e7e78f70_d41ae481755e Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.0, rust-hyper 1.11.1, rust-hyper 1.10.1.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
t13d3012h2_1d37bd780c83_882d495ac381 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.21.0, curl 8.22.0, curl 8.20.0, +6 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge11nn050000_ea6f06182064_000000000000_000000000000 | 2 |
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
6:47+17:0:1440:mss*23,7:mss,sok,ts,nop,ws:flow:0 | 1 |
6:56+8:0:1440:mss*23,7:mss,sok,ts,nop,ws:flow:0 | 1 |
6:48+16:0:1440:mss*23,7:mss,sok,ts,nop,ws:flow:0 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (compatible; CT-WP-Probe/1.2) | 2 |
curl/8.19.0 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
DE · Germany | 1 |
FR · France | 1 |
LV · Latvia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS56971 · AS56971 Cloud | 2 |
AS24940 · Hetzner Online GmbH | 1 |