ua-tracer
by Paul Kinlan
trace inyfs6DB
what does a user agent actually fetch, follow & run?
Trace inyfs6DB
First seen: 2026-09-19 15:42:04.955 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.
| Received | Δ | Kind | Method | User-Agent |
|---|---|---|---|---|
| 2026-09-19 15:42:04.955 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=:hvEGlTxYNjrDOW+j3fhVasLEogq85UgNyarpS3RWPI+bJ/fnVHrZ7ZYWY2l1ZxnAfWTpzUv9kE0Qcy7e0xGrDA==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832524;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832584;nonce=\"bz_HQwF1xbjVA3RO2J6KaV3RYUQnq3CKwDTYguNTEYzeBeVXCnb0NlNVmBmL2sccnHa6JVfhNzKvJQt7DZow5g\";tag=\"web-bot-auth\"",
"traceparent": "00-21691b204521ae8c11339b9d10f71345-00ecaba2eb63a681-01",
"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": "00-21691b204521ae8c11339b9d10f71345-dc2f93229e1f7d84-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-19 15:47:17.081 UTC | +312126 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=:NbQj0dyD4wFBVlaOYqHgPG3kzj0fzHMHhwtqGdF3apYZmJXcL1uGtRwkDIoUv8ahSiixkRQ7rO4QCeCdMwxRAQ==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832837;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832897;nonce=\"QQPgXXR8T47s-wyoAyPO3bEoSg9hHYMMPCqlOHuRI_7xaoqH5RrUU8_cPD-CkeXE12x9XmMn5YFND7KBk65n1A\";tag=\"web-bot-auth\"",
"traceparent": "00-a570256e3283ce4971b969fbe9c605d4-dc2f500e00c8afbc-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-a570256e3283ce4971b969fbe9c605d4-9476b0bc3d331799-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-19 15:47:17.950 UTC | +312995 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=:AiExmXGxaZ0PSCCPA3ihZtU3B1sLkrDNM7DA9Yru/OojSGHhNRji9VgMOEQX5twnIRTu2WImsb5i/Ygkg7NxCw==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832837;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832897;nonce=\"nfVFbKG0g8VUWZSffZA7ZjQVprADBqaiGWlMaghC1ruhHtf9gcTeSmUOoTtGMb0b0_m1CJBp2Jr9JsCQ1ZTijg\";tag=\"web-bot-auth\"",
"traceparent": "00-ecee326257dee5e31bf5ba4c823ebc60-c9bbbe29f790e990-01",
"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-ecee326257dee5e31bf5ba4c823ebc60-349f941dd0e2baee-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-19 15:47:18.897 UTC | +313942 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=:J7AR7j63yD5soUQv/hlWEME2kWien8XMj36mii8/7yhexZlxbA3O+HlEdYuO3r5hkk9Qvh0jY/3wG47oj+OdAw==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832838;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832898;nonce=\"dREpdTLvLz9-Ld_A4QNhBeGb4CBoGNyL-2cG-SFa-ZXanRjARcdw9wmUNQHFYpA3vzrPZEx5pBj3rXEDikGWgw\";tag=\"web-bot-auth\"",
"traceparent": "00-35c8993d429bcc312ed90b3886f55d96-b192cf5c33513e06-01",
"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": "00-35c8993d429bcc312ed90b3886f55d96-6bfb84f4aee9d98a-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-19 15:47:19.719 UTC | +314764 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=:dnoZhJ+FXLtYpg8+5Qi3Ib317nI55htn3b/VHMRwkN/zAvKVo4bTCT75pyVGZZL02ZIRljgNXdY9kPyKPvB3Ag==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832839;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832899;nonce=\"uJUiCxaca0S4yCOKbjavnUjiyN6Kvx7_CIXm8Ol3urOHyEmNV8b-nudiGcX9w9LYaL-z7VP7Cnx0X4RX5br_aA\";tag=\"web-bot-auth\"",
"traceparent": "00-4eb26564461eefb3bce47626b043e262-f949f4eeb2de51f2-01",
"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": "00-4eb26564461eefb3bce47626b043e262-03a1a14fef862477-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-19 15:47:20.643 UTC | +315688 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=:JHjEQqup4lj73dv5AABNrvq+AaqYhuHyIpFOIQ2/fkw9fhd9Jn1pkp5/J0ii1QEq/ZcDfPEaVbxGHtAcyge0BA==:",
"signature-agent": "\"https://ahrefs.com\"",
"signature-input": "sig=(\"@authority\" \"signature-agent\");created=1789832840;keyid=\"e3vpiy0B6M1Wdxnizw3dqRSgpqS6SXM2qiQ6HtUwZ5g\";alg=\"ed25519\";expires=1789832900;nonce=\"XofiVO5cXIx9ZOT6c4Bt-EzizQiOSB1lxYHaibyAR2Z-waDh0yNwUOe9jpGJwIrHrKofwoSbhD3KQNIEEwzCYA\";tag=\"web-bot-auth\"",
"traceparent": "00-130b9f8dbb6c4a52fea8e3588ae2c78e-eaf48174f56f9c26-01",
"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": "00-130b9f8dbb6c4a52fea8e3588ae2c78e-1117a75178953d88-01",
"x-deno-userspace-tracestate": ""
}
|
||||