TCP SYN (JA4T)
65535_2-1-1-4-1-3_1400_10
first seen 2026-07-14 05:10 · last seen 2026-07-21 17:26 · JSON
Decomposed attributes
| TCP window | 65535 |
|---|---|
| Option kinds | 2-1-1-4-1-3 |
| MSS | 1400 |
| 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 |
|---|---|
t13d1616h2_86a278354501_eeeea6562960 | 4 |
t13d1617h2_86a278354501_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nr10enus_b3034183f430_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +21 more.The fingerprint page shows the full measured match list. More on the catalog. | 5 |
ge20nn11enus_3901d4197baf_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 153.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
ge20nn10enus_d353d425b0bb_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 152.0.1.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;4:131072;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. | 2 |
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:22|m,p,a,s | 2 |
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. | 1 |
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:42|m,p,a,s | 1 |
1:4096;2:0;4:32768;5:16384|12517377|5:0:0:22|m,p,a,s | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:138+?:0:1400:65535,10:mss,nop,nop,sok,nop,ws:df,id+:0 | 7 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Android 15; Mobile; rv:152.0) Gecko/152.0 Firefox/152.0 | 4 |
Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.0 | 3 |
Country
| fingerprint | co-occurrences |
|---|---|
ID · Indonesia | 7 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS23693 · PT. Telekomunikasi Selular | 7 |
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 |
|---|---|
q13d0315h3_55b375c5d22e_dc5437974b47 | 5 |