User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0
first seen 2026-06-17 10:26 · last seen 2026-07-04 12:52 · JSON
Decomposed attributes
| Browser / client | Firefox 147.0 |
|---|---|
| Operating system | Windows 10.0 |
| Device class | desktop |
| Note | inferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above |
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 |
|---|---|
t13d311000_e8f1e7e78f70_518fb456ca59 | 5 |
q13d0314h3_55b375c5d22e_1ecea7cb6ec1 | 2 |
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
t13d1714h2_5b57614c22b0_53a6d0ab1c42 | 1 |
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
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. | 1 |
3:100;4:33554432;2:0|33488897|0|m,p,s,a Match?Exact match in Thumbprint's published controlled catalog captures: php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
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 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64800_2-1-3-1-1-4_1440_8 | 1 |
QUIC transport params
| fingerprint | co-occurrences |
|---|---|
q12_022106b74856 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 |
Country
| fingerprint | co-occurrences |
|---|---|
CH · Switzerland | 3 |
DE · Germany | 2 |
FI · Finland | 2 |
US · United States | 1 |
RU · Russia | 1 |
PH · Philippines | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS211301 · Unesty Company | 3 |
AS215540 · GLOBAL CONNECTIVITY SOLUTIONS LLP | 3 |
AS24940 · Hetzner Online GmbH | 2 |
AS25513 · PJSC Moscow city telephone network | 1 |
AS9299 · Philippine Long Distance Telephone Company | 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 |
|---|---|
t13d1714h2_5b57614c22b0_53a6d0ab1c42 | 1 |
q13d0314h3_55b375c5d22e_1ecea7cb6ec1 | 1 |