ua-tracer by Paul Kinlan

trace 7mdWD1jn

ua-tracer

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

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Trace 7mdWD1jn

First seen: 2026-10-20 16:01:12.321 UTC
User-Agent: Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
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.

ReceivedΔKindMethodUser-Agent
2026-10-20 16:01:12.321 UTC +0 ms homepage GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:0MG6CvwPBHEDG7xmz7QD8JoCNRFgwSF4uVvEZUzAuf6cZKdi6t3KqcYvMktMq6ZZuJBiI3GLk3EDVMnyqfjxCg==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512072;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512132;nonce=\"mJ5aC-ia32duQyghOQfngOrBem9lNngUwOIn0_AWlkd9WFNGOr5plHqThrSauE31vn1OzNcuofVxHvHLDjLX8A\";tag=\"web-bot-auth\"",
  "traceparent": "00-15ee7c3c67c865198deb45211f514a33-e69c97c5aa84033a-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-15ee7c3c67c865198deb45211f514a33-16ebd79244028233-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-20 16:01:58.282 UTC +45961 ms JS GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:qS7zFhlwvH96IefY39XOjS9kipw9QTTGUwNYDY7+bRTIT1YPJveu7Y3QYA7Mj67mdMdLxMfhiM/L3KQeenukBA==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512118;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512178;nonce=\"tO_6fHY-QTfWJabBuq6YL3vbE3mYWOlNPv_32BljKr3Cx7HiKrY2zs4og0XnhEa0YAVi-554vCrGTfqhUUqmwQ\";tag=\"web-bot-auth\"",
  "traceparent": "00-8cbed763d4db4a822a921d1eaecbd692-d77a7c7805a6b275-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-8cbed763d4db4a822a921d1eaecbd692-af716bf9aa4d7386-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-20 16:01:59.406 UTC +47085 ms ES module GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:ateLP+Iv+vl/53ytj3v6Ldj5T4SUTot9UB6MovevKPj3UwW6f5RMvfA0NXAq5zuvDf3dYngqFo1YlINzsZV2AQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512119;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512179;nonce=\"7rtnob68ZNhyndgiHZrT-P4cgQWpvNo_KIIR_BuFBSfia2exfpFySacTHJrMRdL_WyMx6FFDl9TJ6ebAX1YtfA\";tag=\"web-bot-auth\"",
  "traceparent": "00-5f80167a6b897b5e852e25212c228293-fee21111c0cbd5c6-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-5f80167a6b897b5e852e25212c228293-9ea60ba4d4dc75ed-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-20 16:02:00.389 UTC +48068 ms Open Graph image GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:yKdUUXIGELdUkiybDD3ldUSXtyq8SYXiMdFCm/J6ibUflqgJNSawAoPUv5AiDELJkBDB5D51F8BPqEoS5FEvBQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512120;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512180;nonce=\"lPxZ0LjZ5Odbu22ymsNc2ha-nIVaJYx3ShOngEjaLCIjNV5cRDrLM-1Sic0joQpx4FQ0DvbrMV-M4dh4kzDxQw\";tag=\"web-bot-auth\"",
  "traceparent": "00-cde59f4d5305a9a2d1f62c6bbc244988-969f87a35a9ea279-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-cde59f4d5305a9a2d1f62c6bbc244988-278f161f62d0bf05-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-20 16:02:01.397 UTC +49076 ms image GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:hQsQUdNBT+JO1ZYbGV1MWcrr5ZJRTeqZx/pF4L/Pix+0q3+IHSfMPrRAIrFZq+dFQ/pAF2LYvKc6JpHe1FQwBQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512121;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512181;nonce=\"sHXpQevNbojka7aBR9wwkm4MpJEASo0FZofsLl5kcy6bhKXiYMs0icyoj4if6c2Ay3SjpFxcyVZsVrK3hj98Ag\";tag=\"web-bot-auth\"",
  "traceparent": "00-8612b9a5814ad16e256b8a197fe6dddd-9a4353f90d096928-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-8612b9a5814ad16e256b8a197fe6dddd-ae9f23be183db0d5-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-20 16:02:02.526 UTC +50205 ms CSS GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:YAF1FsMH1L+hKvTeYnNbOY2CH/Lc0N9T1ijh/WR1EvkIMRc79CcJ/5ETrK54y89mvlY3teKFaxd1nOqbzN9RDg==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792512122;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792512182;nonce=\"6KDH63kQDitdmaXkdlWlRm3x8E_SUkztsa9KPJ1RD94PwORpdIQu7e-9nQ7dXOy-2Ww4aELE68LdWernWo-zXg\";tag=\"web-bot-auth\"",
  "traceparent": "00-0d2586618c35f845e2337bcc5cee1d90-fb2ac78103afd6bd-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-0d2586618c35f845e2337bcc5cee1d90-794da51ddb9b7ea8-01",
  "x-deno-userspace-tracestate": ""
}