ua-tracer by Paul Kinlan

trace CVwOtZ2X

ua-tracer

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

← all traces

Trace CVwOtZ2X

First seen: 2026-08-23 05:41:31.266 UTC
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 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
2026-08-23 05:41:31.266 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
request headers (9) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "traceparent": "00-ef4278f925f64a9a6a4010d7d408b629-b5c1b7a610827458-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ef4278f925f64a9a6a4010d7d408b629-bb3bd9da71d01b89-01",
  "x-deno-userspace-tracestate": ""
}
2026-08-23 05:41:35.577 UTC +4311 ms JS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "cookie": "ua-tracer-trace=CVwOtZ2X",
  "host": "uatracer.com",
  "traceparent": "00-44b435a6b98614dd2793a3a4e4559e40-b3714e2fd47303d4-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-44b435a6b98614dd2793a3a4e4559e40-4972469b4ba441e3-01",
  "x-deno-userspace-tracestate": ""
}
2026-08-23 05:41:35.600 UTC +4334 ms ES module GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "cookie": "ua-tracer-trace=CVwOtZ2X",
  "host": "uatracer.com",
  "traceparent": "00-e2ad786d07f4d6c1be039eab478175a1-a8d013767be8718b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-e2ad786d07f4d6c1be039eab478175a1-3f70db36a3c915ce-01",
  "x-deno-userspace-tracestate": ""
}