ua-tracer
by Paul Kinlan
trace QCnNajg4
what does a user agent actually fetch, follow & run?
Trace QCnNajg4
First seen: 2026-07-03 04:57:01.908 UTC
User-Agent: Protopage/3.0 (http://www.protopage.com)
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.
| Received | Δ | Kind | Method | User-Agent |
|---|---|---|---|---|
| 2026-07-03 04:57:01.908 UTC | +0 ms | homepage | GET | Protopage/3.0 (http://www.protopage.com) |
request headers (11){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, x-gzip, deflate",
"accept-language": "en-US,en;q=0.8",
"connection": "keep-alive",
"host": "uatracer.com",
"traceparent": "00-30b4cb9050bc400e7dae792046d21908-9cc5f92e109b548b-01",
"tracestate": "",
"user-agent": "Protopage/3.0 (http://www.protopage.com)",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-30b4cb9050bc400e7dae792046d21908-5bc5741bd112d552-01",
"x-deno-userspace-tracestate": ""
}
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| 2026-07-03 04:57:02.940 UTC | +1032 ms | Open Graph image | GET | Protopage/3.0 (http://www.protopage.com) |
request headers (12){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, x-gzip, deflate",
"accept-language": "en-US,en;q=0.8",
"connection": "keep-alive",
"host": "uatracer.com",
"range": "bytes=0-1536",
"traceparent": "00-c40c2763b627640adc4d0fbe942c664c-ce796aebe6de7903-01",
"tracestate": "",
"user-agent": "Protopage/3.0 (http://www.protopage.com)",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-c40c2763b627640adc4d0fbe942c664c-43fd9a70a308ab69-01",
"x-deno-userspace-tracestate": ""
}
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