User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.6533.0 Safari/537.36
first seen 2026-06-11 23:07 · last seen 2026-06-29 23:13 · JSON
Decomposed attributes
| Browser / client | Headless Chrome 127.0.6533.0 |
|---|---|
| Operating system | Linux x86_64 |
| Device class | bot |
| 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 |
|---|---|
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog. | 15 |
t13d521100_b262b3658495_8e6e362c5eac | 6 |
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
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, +43 more.The fingerprint page shows the full measured match list. More on the catalog. | 6 |
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:220|m,a,s,p | 3 |
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 150.0.7871.128, chromium 148.0.7778.96, +2 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:220|m,a,s,p | 2 |
1:65536;2:0;4:6291456;6:262144|15663105|7:1:5:220|m,a,s,p | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
24320_2-4-8-1-3_1220_7 | 9 |
65535_2-4-8-1-3_1460_9 | 3 |
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 18 |
GB · United Kingdom | 1 |
FR · France | 1 |
EE · Estonia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS396982 · Google LLC | 15 |
AS20473 · The Constant Company, LLC | 3 |
AS203020 · HostRoyale Technologies Pvt Ltd | 1 |
AS209372 · WS Telecom Inc | 1 |
AS207990 · HostRoyale Technologies Pvt Ltd | 1 |