ua-tracer by Paul Kinlan

trace vWY1MgVR

ua-tracer

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

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Trace vWY1MgVR

First seen: 2026-07-03 04:19:53.582 UTC
User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Bot verification: ⚠ NOT in Googlebot range (spoofed?) IP checked against published bot CIDR ranges; UA claims Googlebot but IP not in published range.

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
2026-07-03 04:19:53.582 UTC +0 ms homepage GET Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (10) 
{
  "accept": "text/html,application/xml,application/xhtml+xml;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-1560aaf782b23f3528d0c983181c3a80-8ffe85930d09870a-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-1560aaf782b23f3528d0c983181c3a80-8ccaf0f23b075a58-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 04:19:54.750 UTC +1168 ms favicon GET Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-b05de69fb5116564ff3fd7200edd4e94-1a81d25b3de61d41-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b05de69fb5116564ff3fd7200edd4e94-c8ccded16f2ffbbd-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 04:19:55.216 UTC +1634 ms Open Graph image GET Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)
request headers (8) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-ee885b41f6230d3f30a1cd5a443ccb5a-a2ecbcc8e72d396b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-07-03 04:19:55.217 UTC +1635 ms Open Graph image GET Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)
request headers (8) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-eb82f9fea18753779ad4df8ae302a95e-fad6c791a88320b7-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-07-03 04:19:55.224 UTC +1642 ms image GET Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-db61b9ba2dd033f0fdcb57279241de41-8ea06af7ddfdb696-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-db61b9ba2dd033f0fdcb57279241de41-454254fe52428355-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 04:19:55.233 UTC +1651 ms Twitter card image GET Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "host": "uatracer.com",
  "https": "true",
  "traceparent": "00-b661ac87a7fa57fad6c59a1467160614-08c6ef243e95f427-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; Embedly/0.2; snap; +http://support.embed.ly/)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b661ac87a7fa57fad6c59a1467160614-de3e0cfcad14b454-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 04:19:56.486 UTC +2904 ms Open Graph image GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36(KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "connection": "keep-alive",
  "host": "uatracer.com",
  "traceparent": "00-b909fa4ced1e3cf1d214113db66accb7-fb0383c80e77d827-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36(KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b909fa4ced1e3cf1d214113db66accb7-21e5fe1d885fd1ad-01",
  "x-deno-userspace-tracestate": ""
}