TCP SYN (JA4T)
29200_2-4-8-1-3_1460_6
first seen 2026-07-01 14:47 · last seen 2026-09-08 19:39 · 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 | 29200 |
|---|---|
| Option kinds | 2-4-8-1-3 |
| MSS | 1460 |
| 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)
| 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. | 32 |
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 152.0.7977.64, chrome 152.0.7977.65, +5 more.The fingerprint page shows the full measured match list. More on the catalog. | 20 |
t13d2013h1_2b729b4bf6f3_e24568c0d440 | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn15enus_a80081d13d36_000000000000_000000000000 | 28 |
ge20nr12zhcn_54b4638ab28b_000000000000_000000000000 | 6 |
ge20nr13zhcn_0c2c1d640f3e_000000000000_000000000000 | 6 |
ge20nr14enus_4600588ae5ca_000000000000_000000000000 | 4 |
ge20nr14zhcn_00c893c2b404_000000000000_000000000000 | 4 |
ge20nr13zhcn_9519c2577190_000000000000_000000000000 | 4 |
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0.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|1:1:0:256|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, +43 more.The fingerprint page shows the full measured match list. More on the catalog. | 24 |
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:256|m,a,s,p | 10 |
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 149.0.7827.102, +59 more.The fingerprint page shows the full measured match list. More on the catalog. | 8 |
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:256|m,a,s,p | 3 |
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:256|m,a,s,p | 2 |
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 150.0.7871.128, chromium 148.0.7778.96, +2 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 147.0.7727.15, chromium 145.0.7632.6, +21 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:256|m,a,s,p | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|11:1:0:256|m,a,s,p | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|13:1:0:256|m,a,s,p | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:246+9:0:1460:mss*20,6:mss,sok,ts,nop,ws:df,id+:0 | 32 |
4:52+12:0:1460:mss*20,6:mss,sok,ts,nop,ws:df,id+:0 | 20 |
4:56+8:0:1460:mss*20,6:mss,sok,ts,nop,ws:df,id+:0 | 1 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 53 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS14618 · Amazon.com, Inc. | 32 |
AS45102 · Alibaba (US) Technology Co., Ltd. | 20 |
AS18474 · Aeneas Internet Services | 1 |