TCP SYN (JA4T)
29200_2-4-8-1-3_1460_10
first seen 2026-07-01 19:31 · last seen 2026-10-28 23:56 · JSON
Last 7 days (3 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 | 29200 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1460 |
| Window scale | 10 |
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 |
|---|---|
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 14 |
t13d1313h2_f57a46bbacb6_9249cab70c77 | 4 |
t13d1511h2_8daaf6152771_b9003e5c3fb3 | 3 |
t13d3013h2_1d37bd780c83_8537cf56674e Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
t12d280900_0df5e5c63df4_5c2ba2672724 | 1 |
t13d311200_1d947a95fc68_7e1102d2036b Match?Exact match in Thumbprint's published controlled catalog captures: java-urlconnection 17.0.19.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
t13d131000_f57a46bbacb6_cc8a6a8fc03c | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn10zh00_06e2da52e592_000000000000_000000000000 | 7 |
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.9, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
ge20nn10zh00_dfc386b48ce4_000000000000_000000000000 | 3 |
ge20nn10zh00_f058b30e64ca_000000000000_000000000000 | 3 |
ge20nr12enus_54b4638ab28b_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 152.0.7977.83, chrome 151.0.7922.137, +61 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge20nn030000_bf75ddd0bb29_000000000000_000000000000 | 1 |
ge20nr13enus_0c2c1d640f3e_000000000000_000000000000 | 1 |
ge10nr040000_532a1ee47909_000000000000_000000000000 | 1 |
ge11nn040000_487c3246ac94_000000000000_000000000000 | 1 |
ge20nn10zh00_e1b5b4fef504_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +60 more.The fingerprint page shows the full measured match list. More on the catalog. | 14 |
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p | 4 |
1:65536;2:0;4:6291456;6:262144|15663105|0|m,s,a,p | 3 |
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, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
CN · China | 18 |
US · United States | 4 |
KR · South Korea | 1 |
EG · Egypt | 1 |
CO · Colombia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS55960 · Beijing Guanghuan Xinwang Digital | 18 |
AS12129 · 123.Net, Inc. | 3 |
AS62240 · Clouvider | 1 |
AS31898 · Oracle Corporation | 1 |
AS8452 · TE-AS | 1 |
AS18160 · Kakao Corp | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
001d,0017,0018,0019,001e,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 11.0.31, java-urlconnection 17.0.19, +2 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, curl 8.7.1.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1, python-requests 2.34.2, curl 8.23.0, +4 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
6399,001d,0017,0018,0019 | 1 |
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).
| fingerprint | linked observations |
|---|---|
q13d0311h3_55b375c5d22e_653d80c3fe9d | 2 |