TCP SYN (p0f)
4:120+8:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-07-10 13:18 · last seen 2026-10-29 14:48 · JSON
Last 7 days (9 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
| IP version | 4 |
|---|---|
| Initial TTL | 120+8 |
| Options length | 0 |
| MSS | 1460 |
| Window size | 62727 |
| Window scale | 10 |
| Options layout | mss,sok,ts,nop,ws |
| Quirks | df,id+ |
| Payload class | 0 |
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. | 4 |
t13d1114h2_5e2a75874763_89e9e4bb3419 | 4 |
t13d101000_61a7ad8aa9b6_f9531d972513 | 2 |
t13d1812h1_85036bcba153_b26ce05bbdd6 | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn120000_1d5643f8516d_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 151.0.7922.34, chromium 153.0.8010.12, chromium 156.0.8078.4, +13 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.0, +14 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge20nr100000_65cf54e683ea_000000000000_000000000000 | 2 |
ge11nn030000_6176f80cf3c8_000000000000_000000000000 | 1 |
ge11nn040000_bcc68d1858ec_000000000000_000000000000 | 1 |
ge11nn060000_416ead2c78e7_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
4:16777216|16711681|0|m,p,a,s | 4 |
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, +57 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:220|m,a,s,p | 2 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
62727_2-4-8-1-3_1460_10 | 11 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 11 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS14618 · Amazon.com, Inc. | 10 |
AS16509 · Amazon.com, Inc. | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
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.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |