ua-tracer
by Paul Kinlan
trace bufsgrs9
what does a user agent actually fetch, follow & run?
Trace bufsgrs9
First seen: 2026-10-02 21:55:33.068 UTC
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; KeenableBot/1.0; +https://keenable.ai/bot)
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 |
|---|---|---|---|---|
| 2026-10-02 21:55:33.068 UTC | +0 ms | homepage | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; KeenableBot/1.0; +https://keenable.ai/bot) |
request headers (9){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,application/json;q=0.8,text/markdown;q=0.7,text/plain;q=0.6,text/csv;q=0.6,*/*;q=0.5",
"accept-encoding": "gzip,deflate,br",
"host": "uatracer.com",
"traceparent": "00-6a95034d7522c8abaea048b304ff7f13-c326962e8d5c0209-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; KeenableBot/1.0; +https://keenable.ai/bot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-6a95034d7522c8abaea048b304ff7f13-3011ea09a6f157cd-01",
"x-deno-userspace-tracestate": ""
}
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| 2026-10-03 01:40:37.832 UTC | +13504764 ms | iframe document | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; KeenableBot/1.0; +https://keenable.ai/bot) |
request headers (9){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,application/json;q=0.8,text/markdown;q=0.7,text/plain;q=0.6,text/csv;q=0.6,*/*;q=0.5",
"accept-encoding": "gzip,deflate,br",
"host": "uatracer.com",
"traceparent": "00-ce3ec9b1defa3e2fd6959c969a89e027-711281c851ee6fdf-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; KeenableBot/1.0; +https://keenable.ai/bot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-ce3ec9b1defa3e2fd6959c969a89e027-03322a33286a70e1-01",
"x-deno-userspace-tracestate": ""
}
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