ua-tracer by Paul Kinlan

trace s5Pmmmhq

ua-tracer

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

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Trace s5Pmmmhq

First seen: 2026-10-01 15:46:22.776 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
2026-10-01 15:46:22.776 UTC +0 ms homepage GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:X9FAbJ7J3elTf8XnBDOnisYlycZS+KGW2wbAfjAgYgU3acnbMGM9EwD06BmKLaZlbIVjmas25fRxIKo2aIQbAw==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869581;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869641;nonce=\"v9_HY4F4deP-IWbW7S2aKmOfEBgTmcA-zTQbvEUlPO_adV1aYcHmYvfS_KHcC4vHqZohZbYaieG0lCa7gxE1sw\";tag=\"web-bot-auth\"",
  "traceparent": "00-d7ffb8e3566e15c672f797fd58332182-625ded1b154aa265-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-10-01 15:49:03.923 UTC +161147 ms JS GET Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip, br, zstd",
  "host": "uatracer.com",
  "signature": "sig=:+ian57NgVYJPsX2/IABu5sl540oqMmjS7QKz6FxzyM2Zbq48/83y1fQ8rxJrcP6pmuHapBvJbiTNLXvOYi+lAg==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869743;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869803;nonce=\"_dTLouhAJfmbzaVFLvhhIdall3lUEbQqcPPqSkgo6RRBxFwqaS9-nBGDDq6f3Kzb8NN1iaETUOEkheMg0Y_qvw\";tag=\"web-bot-auth\"",
  "traceparent": "00-ea66896b6bd7bfff7be7e4374139338e-680c44799662c209-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-10-01 15:49:04.859 UTC +162083 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=:tszxky2WccsECWIyvxDcL5vHBtu2LXjf9zFgcZ1zjlN/PuSHj4psvPrnNbH3B3kHPPde05yhgg7fEz9HwFXfAw==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869744;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869804;nonce=\"VGwlIEkKJUEuE8Ht_azL5f0oZjC4utHSroLdQRK1g7mkk29Yh0yJ1y9-BpJSpsJ8TClB5TUZ2I1dpoKCgwJ7PQ\";tag=\"web-bot-auth\"",
  "traceparent": "00-98381a61bb513383f68c02b7ce280441-54b8bcadbea5c92a-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": "00-98381a61bb513383f68c02b7ce280441-0926b8c8604c8cd2-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-01 15:49:05.834 UTC +163058 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=:PBi6msrskXoSsuNt3RNZaBXEm6/CuZhiExy2F23B0igNvTEX8Po+QSynjY82uxhjpLD5FQK6Z0rRxKQmYQTfCg==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869745;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869805;nonce=\"tsZxWLXJDp-RGNB4Alhdtoz496u1UOTa7LzXg1r41orUlgYRBfPar4dGV6SXGK6QJLgf2pW4cJmbhf3thWrPIA\";tag=\"web-bot-auth\"",
  "traceparent": "00-ea7b6531514723ccbe45b8b5f70fe811-cb89321d5c8c0bae-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-ea7b6531514723ccbe45b8b5f70fe811-ca805ef05507cabf-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-01 15:49:06.796 UTC +164020 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=:Q1GvISzC7lgrPdheiu/h4jZh5yEHhHOuHT3F83ElMpA+o8VgPNfU9EBvVV0ziQo+fqkY79megLH0DLFYO/5mBA==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869746;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869806;nonce=\"Vf5pZgAM5Qkkel2rnczg_UoimLoMNgD6Y9z0RzSAahCItaeQQoEfJIkTwCUz-whKuyxLRghDw80zzw6JoGvjWA\";tag=\"web-bot-auth\"",
  "traceparent": "00-2abc39a7543168ec2ba1c68945c677c5-6cb2b40b6b72a53a-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": "00-2abc39a7543168ec2ba1c68945c677c5-2558d1a156b65be0-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-01 15:49:07.639 UTC +164863 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=:LPq3Ste6IkzDS77xJuiIpmdHRed4KFeXBEdxs2aryXDC4ZMt1qRz6Zk8HJfu9Lsf6rANi0UMKk4FVvDUAe8FAA==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1790869747;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1790869807;nonce=\"6xgsYocq27EXVo27THjF9tKQI03FHQWxxSqLI6MU042_KD7GSyM_97v2AwYc8oVZBqWNHgFE9wXMvTP_0yIzSA\";tag=\"web-bot-auth\"",
  "traceparent": "00-8943fef0ae9929797caaad28d4a1c091-6c917bd6db3fac34-01",
  "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": "00-8943fef0ae9929797caaad28d4a1c091-383d78366d199440-01",
  "x-deno-userspace-tracestate": ""
}