User-Agent
Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0
first seen 2026-06-15 04:00 · last seen 2026-10-26 15:14 · JSON
Last 7 days (1 observations)
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
| Browser / client | Firefox 128.0 |
|---|---|
| Operating system | Linux x86_64 |
| 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 | 7 |
t13d1516h2_8daaf6152771_33a51b5ad3c5 | 6 |
t12d4907h1_730fb1b0ac6a_8587f467d9ea | 5 |
t13d131100_f57a46bbacb6_f50d94e863eb Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.3, go-net/http 1.27.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 5 |
t13d311100_e8f1e7e78f70_d41ae481755e Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.1, rust-hyper 1.12.0, rust-hyper 1.11.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
t12d130600_2d7513195f68_e51b7354d87f | 1 |
t13d3112h1_e8f1e7e78f70_d41ae481755e | 1 |
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 |
t13d1011h2_61a7ad8aa9b6_f9531d972513 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.13.4, rust-hyper 1.11.0, rust-hyper 1.11.1, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
t13d291400_723694b0fccc_836e3955dfc3 | 1 |
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|0|m,p,a,s | 6 |
2:0;4:2097152;5:16384;6:16384|5177345|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.13.5, rust-reqwest 0.13.4, +4 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-4-8-1-3_1460_7 | 11 |
65535_2-4-8-1-3_1460_3 | 6 |
42340_2-4-8-1-3_1460_9 | 5 |
64800_2-1-3-1-1-4_1440_8 | 4 |
64800_2-4-8-1-3_1440_7 | 1 |
65000_2-4-8-1-3_1300_10 | 1 |
65280_2-4-8-1-3_1280_11 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 10 |
NL · Netherlands | 10 |
SG · Singapore | 8 |
CH · Switzerland | 1 |
RO · Romania | 1 |
FR · France | 1 |
PL · Poland | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS197170 · TechTies Inc. | 6 |
AS6079 · RCN | 6 |
AS16509 · Amazon.com, Inc. | 4 |
AS48090 · TECHOFF SRV LIMITED | 4 |
AS14061 · DigitalOcean, LLC | 2 |
AS45102 · Alibaba (US) Technology Co., Ltd. | 2 |
AS47890 · UNMANAGED LTD | 1 |
AS6939 · Hurricane Electric LLC | 1 |
AS51167 · Contabo GmbH | 1 |
AS14618 · Amazon.com, Inc. | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
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 |