ua-tracer by Paul Kinlan

trace m2P68a7n

ua-tracer

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

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Trace m2P68a7n

First seen: 2026-10-23 15:46:04.743 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
2026-10-23 15:46:04.743 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=:hQx6wYPqzb0gKJ/jpJGUn1ZSwHgT+5RXCLLoVRcWgfVYQOX3FVQC8Q465WCYBzb6RGC2MgJJsk8WZIotNKc6AQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770364;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770424;nonce=\"vWXIcczTp1No6aQB-qO3stIh0amwZzIaiwqE6Pe7C_aQTHVh6GULxUfvWkmRS8mRZ0PRCIs0MTm4RlYzfheOQA\";tag=\"web-bot-auth\"",
  "traceparent": "00-e0d8f10a58cf35e46d5d4ea2d812463e-f8d261443c78134e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-10-23 15:47:36.838 UTC +92095 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=:WkY0GBSbrcXAX+1N3U3UZNZSnfXHuKOvOMiD/L6/ul8dn80O3WzX9GvKa6hZzUSCUq2+yOmsH6N31+gIVasqBw==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770456;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770516;nonce=\"L1gf_5CgmjtjhPgTR2Bg3d45JAVqnsw8GG2sulBgb5gWeewnlJ7gxwvG6UNktIJ1DQBwFg7cDRp2Hw5-Z1Uw8A\";tag=\"web-bot-auth\"",
  "traceparent": "00-fba2a1b033123edd940c84a95c25fe7d-49b2618fc0d69546-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-10-23 15:47:37.791 UTC +93048 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=:CY1qdyvMNQWp4smwaB5ZNkSWlr5wD/5Plgh9npKu5z/iSfwMYkIKsZyCfjuw4nXBED/xtFhAtRZuedgdzq+pCQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770457;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770517;nonce=\"N0lxezTxKxhKX6oeVMT--CRdludrVdroDwLzrtzwLli0tNrk4mbkBUwby8lIfW1IMBTp4vHhTMpIrKbDGK_j8w\";tag=\"web-bot-auth\"",
  "traceparent": "00-c35c0bd46d32a95502f6690fdf843776-8cbd1d3846236d57-01",
  "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-c35c0bd46d32a95502f6690fdf843776-f8777e2ef63727d7-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-23 15:47:38.835 UTC +94092 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=:4eo5jef8psLKe0M9JP/N3b1OHT5TayFF53ukbp/i1Y90BarTBog9e6px64r8DxUP91rgr+SaIAaSFWYuvVDcAw==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770458;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770518;nonce=\"uhs_qG3YMPVsHg9QNN01WM-zxYFsa_jr36V-vscRAsQvlfvh20Daw69YyCMeo7pTAgiZOquksKsnHH1jCluUVQ\";tag=\"web-bot-auth\"",
  "traceparent": "00-b3780200b25a9bfdc44170c146d355d3-c83f1380c2a8fa9f-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-b3780200b25a9bfdc44170c146d355d3-7cd01437a63ad3cd-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-23 15:47:39.879 UTC +95136 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=:8fC8QhS51jBySdGMNZo3O5KxYmq+aRbW0XGvILi+nypUcHDdRdiAALrW13uidFKJEWFPvT3bkmXctyhRTBghCQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770459;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770519;nonce=\"E4X0khcGddFIc64jpH8FtQUccLKa7fkGLtLKXNKEJkODIyEuxOLbSgmhFOwh-WvqvG6IC_7vqC2wrJqiuomjKw\";tag=\"web-bot-auth\"",
  "traceparent": "00-216d953953cd72821e7ee8d8e234e2b3-ab540f016951c414-01",
  "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": "00-216d953953cd72821e7ee8d8e234e2b3-e3542b5ab5313844-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-23 15:47:40.652 UTC +95909 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=:IzC9Kv8cLgDMQR102lu6qdhK64/55bFwbldYzP540e8ByH8jneHhB2MU5vBDXT+9vSqryB7eWTnBsTRmYTJXAQ==:",
  "signature-agent": "\"https://ahrefs.com\"",
  "signature-input": "sig=(\"@authority\" \"signature-agent\");created=1792770460;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1792770520;nonce=\"5h--IZKRJvogh9Fvzl5Nly-DzS1m6kDfOJXs2guOBBrgo0HA-J_onR-1bEGQRud-YFE5EPMJChjIWRVoZwTC1g\";tag=\"web-bot-auth\"",
  "traceparent": "00-bd168c50b4b2110bf6c6c3d77cfd1650-9feec6592fce3f55-01",
  "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-bd168c50b4b2110bf6c6c3d77cfd1650-f7b474507b736163-01",
  "x-deno-userspace-tracestate": ""
}