ua-tracer by Paul Kinlan

trace oCaRPgHQ

ua-tracer

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

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Trace oCaRPgHQ

First seen: 2026-10-31 07:48:11.585 UTC
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
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
2026-10-31 07:48:11.585 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
request headers (17) 
{
  "accept": "text/html,application/xhtml+xml,*/*;q=0.8",
  "accept-encoding": "gzip",
  "forwarded": "for=10.0.0.1",
  "host": "uatracer.com",
  "traceparent": "00-d3a887bad9ef25a9a4e909e1b0cbf44c-666a97e236a80b41-01",
  "tracestate": "",
  "true-client-ip": "10.0.0.1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-client-ip": "10.0.0.1",
  "x-deno-userspace-traceparent": "00-d3a887bad9ef25a9a4e909e1b0cbf44c-3cc447b3ced19205-01",
  "x-deno-userspace-tracestate": "",
  "x-forwarded-for": "10.0.0.1",
  "x-original-url": "/",
  "x-originating-ip": "10.0.0.1",
  "x-real-ip": "10.0.0.1",
  "x-remote-addr": "10.0.0.1"
}