ua-tracer by Paul Kinlan

trace e65Y9gJa

ua-tracer

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

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Trace e65Y9gJa

First seen: 2026-09-23 18:41:57.489 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/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
2026-09-23 18:41:57.489 UTC +0 ms homepage GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36
request headers (10) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate",
  "accept-language": "en-US,en;q=0.5",
  "connection": "keep-alive",
  "host": "uatracer.com",
  "traceparent": "00-bc26bb4b325d943a4b2348460a256fa5-1b002b0087b06851-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-09-23 18:42:06.719 UTC +9230 ms web app manifest GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36
request headers (13) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate",
  "accept-language": "en-US,en;q=0.5",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=e65Y9gJa",
  "host": "uatracer.com",
  "traceparent": "00-884fbdc79269bc36ef3c34595f04369e-bc02907ba46bc17e-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-884fbdc79269bc36ef3c34595f04369e-36ed738568ba5a1e-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-23 18:42:06.762 UTC +9273 ms web app manifest GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
request headers (13) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate",
  "accept-language": "en-US,en;q=0.5",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=e65Y9gJa",
  "host": "uatracer.com",
  "traceparent": "00-26cf3f924569a78f47a1442756f4e4ea-9e8d3b8df5ef01af-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-26cf3f924569a78f47a1442756f4e4ea-8cffa3c041dad1c8-01",
  "x-deno-userspace-tracestate": ""
}