ua-tracer
by Paul Kinlan
trace zf67pho3
what does a user agent actually fetch, follow & run?
Trace zf67pho3
First seen: 2026-09-21 16:04:14.049 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
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 |
|---|---|---|---|---|
| 2026-09-21 16:04:14.049 UTC | +0 ms | homepage | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (11){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip",
"accept-language": "en",
"host": "uatracer.com",
"traceparent": "00-99ea72f558111c24587189c822636555-bc7383095d793de5-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-99ea72f558111c24587189c822636555-dc89d97ecd626ecc-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:20.288 UTC | +6239 ms | ES module | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip",
"accept-language": "en",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-7f325631464c2dc88d19c706956ec2ac-4d5c96d8c443a071-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-7f325631464c2dc88d19c706956ec2ac-1aa3657fc5e1bfcd-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:20.292 UTC | +6243 ms | JS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip",
"accept-language": "en",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-1646f9400dbe86a878103e35bbb903d0-246de73a409a7542-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-1646f9400dbe86a878103e35bbb903d0-e4c7dbe5ab402d55-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:23.316 UTC | +9267 ms | prefetch | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (12){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip",
"accept-language": "en",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-8d64992dd70564d20b7af483f5da97b5-cd75fa515146a8a9-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-8d64992dd70564d20b7af483f5da97b5-cbbd532cdd0e8d69-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:23.347 UTC | +9298 ms | iframe document | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (11){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip",
"accept-language": "en",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-1f337dbaca772350714a8d2b386b43fd-16ae42a1c0528d26-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-09-21 16:04:25.587 UTC | +11538 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (14){
"accept": "*/*",
"accept-encoding": "gzip",
"accept-language": "en",
"content-type": "application/json",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-a0a49bb8605c99d646657d8c89b193b8-f78722682348c0fe-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-a0a49bb8605c99d646657d8c89b193b8-0a46fb4d39f1b48d-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:25.592 UTC | +11543 ms | CSP violation report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (14){
"accept": "*/*",
"accept-encoding": "gzip",
"accept-language": "en",
"content-type": "application/json",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-6ebb66aa960864f99ae74ac144725609-f2154fd73d997139-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-6ebb66aa960864f99ae74ac144725609-138e139ce4b63623-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-09-21 16:04:27.568 UTC | +13519 ms | client timing POST | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 |
request headers (14){
"accept": "*/*",
"accept-encoding": "gzip",
"accept-language": "en",
"content-type": "application/json",
"cookie": "ua-tracer-trace=zf67pho3",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-36130428ec68c33e6286a638642a47f4-9c8a7425c850bb1a-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-36130428ec68c33e6286a638642a47f4-c7cab7662beafcf6-01",
"x-deno-userspace-tracestate": ""
}
|
||||