ua-tracer
by Paul Kinlan
trace QoqDFVhv
what does a user agent actually fetch, follow & run?
Trace QoqDFVhv
First seen: 2026-08-11 19:15:48.876 UTC
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/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.
| Received | Δ | Kind | Method | User-Agent |
|---|---|---|---|---|
| 2026-08-11 19:15:48.876 UTC | +0 ms | homepage | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (9){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br",
"connection": "keep-alive",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"traceparent": "00-685acc80d76464e2da71ac62f1165d49-570f0813a1a98836-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-08-11 19:15:53.379 UTC | +4503 ms | prefetch | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (13){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"sec-purpose": "prefetch",
"traceparent": "00-04c1c905f77dff7764064ce7144f7644-cfd476c7a3e33624-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-08-11 19:15:55.343 UTC | +6467 ms | CSS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (14){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-48e2ac8b7f4ac4ac02b935db8df10a38-2ba9ebce0bb1286c-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-48e2ac8b7f4ac4ac02b935db8df10a38-1d8ce36f27624455-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-08-11 19:15:56.966 UTC | +8090 ms | ES module | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-761227b0a6db984f41f830a4a6d006ec-e914a453b936379c-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-08-11 19:15:58.890 UTC | +10014 ms | iframe document | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (15){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-01647e70c95990e49f7ec12830d72af9-d6b777f1d8494089-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-01647e70c95990e49f7ec12830d72af9-c1e9dcb5622b178b-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-08-11 19:16:00.762 UTC | +11886 ms | JS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (14){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-d00932da11a6bfb50b1a9566843c49cb-d4559c9816bf3885-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-d00932da11a6bfb50b1a9566843c49cb-02d5fa7676650950-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-08-11 19:16:02.666 UTC | +13790 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36 |
request headers (14){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US",
"connection": "keep-alive",
"cookie": "ua-tracer-trace=QoqDFVhv",
"from": "googlebot(at)googlebot.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/QoqDFVhv/KCoezD7V/style.css",
"traceparent": "00-543e89992a3ec46923fd1ed8e25a09d9-a8b1002dc93129c5-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GoogleOther) Chrome/150.0.7871.186 Safari/537.36",
"via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-543e89992a3ec46923fd1ed8e25a09d9-f3d80eaffb502021-01",
"x-deno-userspace-tracestate": ""
}
|
||||