TCP SYN (JA4T)
65535_2-4-8-1-3_1220_6
first seen 2026-07-23 21:01 · last seen 2026-09-15 05:09 · 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 | 65535 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1220 |
| Window scale | 6 |
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)
| fingerprint | co-occurrences |
|---|---|
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog. | 6 |
ge11nn13enus_9db22d02e17a_000000000000_000000000000 | 6 |
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.0, go-net/http 1.26.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:6291456;6:262144|15663105|1:0:0:256|m,a,s,p | 1 |
TCP SYN (p0f)
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
KE · Kenya | 8 |
PL · Poland | 2 |
US · United States | 1 |
UA · Ukraine | 1 |
EC · Ecuador | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS328331 · POA INTERNET KENYA LIMITED | 8 |
AS5617 · Orange Polska Spolka Akcyjna | 2 |
AS7922 · Comcast Cable Communications, LLC | 1 |
AS15895 · Kyivstar PJSC | 1 |
AS266904 · ALCIVAR ESPIN DANNY ALEXANDER (OptiCom) | 1 |