ua-tracer by Paul Kinlan

ua-tracer

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

← all traces

Trace BVc0iyV1

First seen: 2026-06-23 13:13:36.344 UTC
User-Agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36

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
2026-06-23 13:13:36.344 UTC +0 ms homepage GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (8) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-64d3119f1d28758e7a96a7b1b68610ce-3064adb6cae6a0ff-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-23 13:13:38.103 UTC +1759 ms image GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (8) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-9de6ae0717a125d00d0908cae39764f4-fe68089df7cd2d5d-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-23 13:13:41.149 UTC +4805 ms apple-touch-icon GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (8) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-2638a196c04006b68288d379ddf3b908-cbd46d63c8cf8143-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-23 13:13:43.515 UTC +7171 ms ES module GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (8) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-86fe9b59ec67fcbb734eb24b92ac6719-e4838c8f39b97287-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-23 13:13:49.127 UTC +12783 ms preload (image) GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (10) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-0c5b0228d31d8e9ff6ab1f0c049ebe19-adc91a1d28a5900b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-0c5b0228d31d8e9ff6ab1f0c049ebe19-28b64d2933daf98c-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-23 13:13:50.282 UTC +13938 ms font (HTML) GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (10) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-aef964a8d5c42d659e02f14e904d6a2d-543d590195fc0c50-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-aef964a8d5c42d659e02f14e904d6a2d-19ff7b2bd66c9bc7-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-23 13:13:56.494 UTC +20150 ms CSS GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (10) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-0290774ea3f3977746f06d6c4975339c-bbec675ebd7b2e17-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-0290774ea3f3977746f06d6c4975339c-97c69dd97b979dee-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-23 13:14:03.367 UTC +27023 ms web app manifest GET Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36
request headers (8) 
{
  "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",
  "accept-language": "en-US,en;q=0.9,de-CH;q=0.8,de;q=0.7,ca;q=0.6",
  "host": "uatracer.com",
  "traceparent": "00-892f9b31ed926a168699921e8883612a-e2f1ed3fd1fe306b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}