ua-tracer by Paul Kinlan

trace 2aEIXkvk

ua-tracer

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

← all traces

Trace 2aEIXkvk

First seen: 2026-10-22 13:56:22.856 UTC
User-Agent: ApcosysBot/1.0 (+https://apcosys.net)
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
2026-10-22 13:56:22.856 UTC +0 ms homepage GET ApcosysBot/1.0 (+https://apcosys.net)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "identity",
  "accept-language": "en-US;q=0.8,en;q=0.7",
  "host": "uatracer.com",
  "traceparent": "00-d34bec864e4a8e9190c9671d5de4b935-267a57978e4c9b54-01",
  "tracestate": "",
  "user-agent": "ApcosysBot/1.0 (+https://apcosys.net)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-d34bec864e4a8e9190c9671d5de4b935-f6e8bba709a65d6f-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-22 13:56:24.054 UTC +1198 ms favicon GET ApcosysBot/1.0 (+https://apcosys.net)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "identity",
  "accept-language": "en-US;q=0.8,en;q=0.7",
  "host": "uatracer.com",
  "traceparent": "00-ee71d0fb334c6aabe8bdb3a2e16ee211-446feff17d5fa312-01",
  "tracestate": "",
  "user-agent": "ApcosysBot/1.0 (+https://apcosys.net)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ee71d0fb334c6aabe8bdb3a2e16ee211-83c1c8d2b192d6bc-01",
  "x-deno-userspace-tracestate": ""
}