ua-tracer
by Paul Kinlan
trace N7R5Huy2
what does a user agent actually fetch, follow & run?
Trace N7R5Huy2
First seen: 2026-11-09 16:37:04.037 UTC
User-Agent: Mozilla/5.0 (compatible; ibou-search/2.0; +https://ibou.com/crawlers.html)
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 |
|---|---|---|---|---|
| 2026-11-09 16:37:04.037 UTC | +0 ms | homepage | GET | Mozilla/5.0 (compatible; ibou-search/2.0; +https://ibou.com/crawlers.html) |
request headers (15){
"accept": "text/html;q=0.95,text/*;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip,deflate",
"connection": "Keep-Alive",
"from": "network-abuse@ibou.com",
"host": "uatracer.com",
"if-modified-since": "Wed, 04 Nov 2026 00:11:00 GMT",
"signature": "sig1=:CXm2++FDpoSYLHB8eiSPRBJ9LHFfCyBhW1nNaRgPQQLzZGpavDVQL7uGJXrDZJtgl5LnsFtsljqpERMZx2gCDA==:",
"signature-agent": "https://ibou.io",
"signature-input": "sig1=(\"@authority\" \"signature-agent\");created=1794242224;expires=1794328624;nonce=\"14899e6ca9bd422f\";keyid=\"Dx8uGw1Um6z46pxcPQvlaj2_uLPeBvkeYPzV2Pbhmck\";alg=\"ed25519\";tag=\"web-bot-auth\"",
"traceparent": "00-fb034b5156d843072e1794efd2de9a7f-c9c8059f8eb52021-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; ibou-search/2.0; +https://ibou.com/crawlers.html)",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-fb034b5156d843072e1794efd2de9a7f-0866d1162dd6d8ca-01",
"x-deno-userspace-tracestate": ""
}
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