ua-tracer
by Paul Kinlan
trace nP87r23E
what does a user agent actually fetch, follow & run?
Trace nP87r23E
First seen: 2026-07-13 23:18:18.508 UTC
User-Agent: Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99
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 |
|---|---|---|---|---|
| 2026-07-13 23:18:18.508 UTC | +0 ms | homepage | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-8c7b05839b6356b6eb2962962073f1de-09f9bdb5fa3104a5-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-8c7b05839b6356b6eb2962962073f1de-7ae956eb59865419-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.217 UTC | +1709 ms | web app manifest | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-753b26a2bbf16ae92af32a1a04b715cd-177b9d178c5c3f13-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-753b26a2bbf16ae92af32a1a04b715cd-52e4d93ee00504d8-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.219 UTC | +1711 ms | font (HTML) | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-1e84a99c42ed1e58db3374c9e1c1c0c6-bc905c83ac4bf2ef-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-1e84a99c42ed1e58db3374c9e1c1c0c6-e2df390763328ee4-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.220 UTC | +1712 ms | ES module | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-019e84e7e1e1208742ad603b971e9291-18fe68c896ee2539-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-019e84e7e1e1208742ad603b971e9291-ac4c64a9b818e316-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.222 UTC | +1714 ms | JS | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-7207837a7ae8a3e915abb76f4ad94fb7-911408e5b951a2fa-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-7207837a7ae8a3e915abb76f4ad94fb7-b431d88e3bc925b0-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.236 UTC | +1728 ms | apple-touch-icon | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-27074c11f2cbc8e481b811cc01d96911-ff6a5de1d8abdc5f-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-27074c11f2cbc8e481b811cc01d96911-1644d7ad65c21411-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.239 UTC | +1731 ms | CSS | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-6920e923474e00a0d9b6cbca9f05a359-07c55c88785497b0-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-6920e923474e00a0d9b6cbca9f05a359-1fcf1958bcbb8058-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.251 UTC | +1743 ms | favicon | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-9612b6d6f87e2767a91699af56f7e77d-d40a1f7f2a96facc-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-9612b6d6f87e2767a91699af56f7e77d-c66d9758633a89f9-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.252 UTC | +1744 ms | image | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-32ecb1377259e9e765446461eb922244-5275714514524587-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-32ecb1377259e9e765446461eb922244-20628dd4d61e5f5b-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:20.972 UTC | +2464 ms | preload (image) | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-d33c73591a3ce545b3af9e758a1fa5e7-358e23e68d182d53-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-d33c73591a3ce545b3af9e758a1fa5e7-389608ba4d1f9b82-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:21.089 UTC | +2581 ms | prefetch | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-3215c5517427f97e6c291fe6be02c2ad-7bbacf796319eabd-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-3215c5517427f97e6c291fe6be02c2ad-4aa18391bd9e6bbb-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:21.283 UTC | +2775 ms | Open Graph image | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-796d758b7f744496798e594d36aa81a9-5ea8ca91228be704-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-796d758b7f744496798e594d36aa81a9-bf8df78d0437b344-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:21.619 UTC | +3111 ms | Twitter card image | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (9){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-0e7607f6971597da1386ab2e219c29da-c2335d9be4ff3bac-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-0e7607f6971597da1386ab2e219c29da-69316bfb0c7d0db3-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 23:18:23.019 UTC | +4511 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (7){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-46609cda992591904feb61acdf22533b-b70504e0b5f5a217-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 23:18:23.039 UTC | +4531 ms | CSS @font-face | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (7){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-b1b3c9c6df38693657ff25411b45a42c-4f1c8de5b03a0388-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 23:18:23.054 UTC | +4546 ms | CSS background-image | GET | Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99 |
request headers (7){
"accept-encoding": "gzip, deflate, zstd",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-3146777423c50872f9a74ae450e6c5c6-4b0eebfbb7384ef4-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/d3712ae warc/v0.8.99",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
|
||||