ua-tracer by Paul Kinlan

trace MRErTK2X

ua-tracer

what does a user agent actually fetch, follow & run?

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Trace MRErTK2X

First seen: 2026-07-04 12:40:34.140 UTC
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36
Bot verification: Not a known bot (no IP-range check applies).

What this user agent did

Directly-referenced assets:

✗ fetched CSS ✗ fetched JS ✗ fetched image ✗ fetched font (HTML)

Document-level link hints:

✗ fetched favicon ✗ fetched apple-touch-icon ✗ fetched web manifest ✗ fetched preload ✗ fetched prefetch

Second-level follows (proves it parsed the linking file):

✗ followed CSS background-image ✗ followed CSS @font-face ✗ followed manifest icon ✗ followed CSS @import

Frames (does it descend into iframes?):

✗ fetched iframe document ✗ descended into iframe (loaded inner image)

Reporting (a report-only CSP is violated by inline styles; reports can arrive via HTTP headers with no JS, or via in-page beacons):

✗ sent a CSP/Reporting report (any path) ✗ delivered via report-uri/Report-To header (no JS) ✗ delivered via in-page beacon (securitypolicyviolation / ReportingObserver)

Social embed (Open Graph / Twitter card images):

✓ fetched og:image ✗ fetched twitter:image

JavaScript execution:

✗ EXECUTED classic JS ✗ EXECUTED ES module ✗ posted client timing

Server-side request waterfall

Every request the server received for this trace, in receive order. +ms is the delta from the homepage request.

ReceivedΔKindMethodUser-Agent
2026-07-04 12:40:34.140 UTC +0 ms homepage GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "fr",
  "host": "uatracer.com",
  "priority": "u=1, i",
  "sec-ch-ua": "\"Not-A.Brand\";v=\"24\", \"Chromium\";v=\"146\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "cross-site",
  "traceparent": "00-2a27db1c69a50fda58ce6c87754cfa60-304bfd0e9a8d5840-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-04 12:52:36.326 UTC +722186 ms Open Graph image HEAD Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "fr",
  "host": "uatracer.com",
  "priority": "u=1, i",
  "sec-ch-ua": "\"Not-A.Brand\";v=\"24\", \"Chromium\";v=\"146\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "cross-site",
  "traceparent": "00-e0960f53515f6dee57490232818f7168-01bc7b35c27ac363-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-04 12:52:37.283 UTC +723143 ms Open Graph image GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36
request headers (16) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "fr",
  "host": "uatracer.com",
  "priority": "i",
  "sec-ch-ua": "\"Not-A.Brand\";v=\"24\", \"Chromium\";v=\"146\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "cross-site",
  "sec-fetch-storage-access": "active",
  "traceparent": "00-77ee627b0811b76efba1bd03bf052412-eb34da9f911927bb-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) fluentflame-reader/2.2.0-dev.1 Chrome/146.0.7680.166 Electron/41.1.1 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}