TCP SYN (p0f)
4:44+20:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0
first seen 2026-06-11 00:47 · last seen 2026-07-10 15:41 · JSON
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 44+20 |
| Options length | 0 |
| MSS | 1460 |
| Window size | mss*44 |
| 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. | 40 |
t13d4113h2_8ae0994cad11_86f67be995ff | 21 |
t13d1615h2_86a278354501_a54fffd0eb61 | 7 |
t13d1614h2_86a278354501_53a6d0ab1c42 | 4 |
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
t13d101000_61a7ad8aa9b6_3ea2f44fd1af | 2 |
t13d521100_b262b3658495_8e6e362c5eac | 1 |
t13d1516h2_8daaf6152771_806a8c22fdea Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chrome 151.0.7922.137, chromium 151.0.7922.34, +24 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn030000_042112399351_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0.The fingerprint page shows the full measured match list. More on the catalog. | 21 |
ge20nr13engb_54728652be35_000000000000_000000000000 | 20 |
ge20nr14engb_186438911b7e_000000000000_000000000000 | 6 |
ge20nr13enus_47bedc02e943_000000000000_000000000000 | 5 |
ge20nr15engb_cbb1aaa5e388_000000000000_000000000000 | 4 |
ge20nr12enus_a4e537ffe33a_000000000000_000000000000 | 4 |
ge11nr030000_cd680697de12_000000000000_000000000000 | 3 |
ge20nr14engb_b627e55c4c56_000000000000_000000000000 | 2 |
ge20nr12engb_54b4638ab28b_000000000000_000000000000 | 2 |
ge20nr16engb_ce20326d9e21_000000000000_000000000000 | 2 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
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, +58 more.The fingerprint page shows the full measured match list. More on the catalog. | 27 |
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. | 21 |
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, +42 more.The fingerprint page shows the full measured match list. More on the catalog. | 13 |
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 7 |
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
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 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-4-8-1-3_1460_10 | 11 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
AU · Australia | 70 |
FI · Finland | 4 |
RU · Russia | 2 |
TR · Turkey | 2 |
GE · Georgia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS38195 · Superloop | 67 |
AS24940 · Hetzner Online GmbH | 4 |
AS7545 · TPG Telecom Limited | 3 |
AS8641 · BACKBONE AS of Nauka-Svyaz | 2 |
AS219502 · Storm Industries LLC | 2 |
AS198561 · Legal Entity Under Public Law Financial Analytical Service | 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 |
|---|---|
q13d0312h3_55b375c5d22e_5a06198afb93 | 24 |
q13d0315h3_55b375c5d22e_bb76f32061e3 | 4 |