ua-tracer
by Paul Kinlan
trace 8y1TAp2O
what does a user agent actually fetch, follow & run?
Trace 8y1TAp2O
First seen: 2026-07-13 09:49:58.229 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0
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 09:49:58.229 UTC | +0 ms | homepage | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=0, i",
"sec-fetch-dest": "document",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "none",
"sec-fetch-user": "?1",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-92775f75ee8fdc5e70427ead253ebc76-cf2228781c1a3d8b-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.203 UTC | +1974 ms | font (HTML) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "application/font-woff2;q=1.0,application/font-woff;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=2",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "font",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-41ef6643cd35d7af4de5fcb3d2b0d6b3-6fa722b53c31830f-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.205 UTC | +1976 ms | CSS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=2",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "style",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-67cb9a7f2a4aff26e32f4f69fe895a4e-3db0d75d0db54278-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.206 UTC | +1977 ms | JS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (16){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "script",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-0ea664282ed5e6e3ca53238a9858d918-10f3108c538f1502-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.206 UTC | +1977 ms | preload (image) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=5, i",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "image",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-0751438345822cbb56839d6e436ec931-e02a337725ec4859-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.206 UTC | +1977 ms | ES module | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (16){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "script",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-6cdf1e70aefc2053188bbd97a7808ad8-8048693131d9b39b-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.211 UTC | +1982 ms | image | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=5, i",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "image",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-4732ba9f680a9df72280345440b764c6-15c12de8580c7434-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.281 UTC | +2052 ms | iframe document | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (18){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=4",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "iframe",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-3576045bd1999fefcbb5621fb56c0c34-2b42d3fe13d8295f-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:00.310 UTC | +2081 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (21){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"content-length": "3586",
"content-type": "application/reports+json",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=4",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-b825fd494743ff0c63d1971bf029f2bd-12fd7b00a9dd2879-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
"x-report-body": "[\n {\n \"age\": 16,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"blockedURL\": \"inline\",\n \"referrer\": null,\n \"effectiveDirective\": \"style-src-elem\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 9,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 15,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"blockedURL\": \"inline\",\n \"referrer\": null,\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 15,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"blockedURL\": \"inline\",\n \"referrer\": null,\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 15,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"blockedURL\": \"inline\",\n \"referrer\": null,\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n }\n]"
}
|
||||
| 2026-07-13 09:50:01.969 UTC | +3740 ms | image inside iframe | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=5, i",
"referer": "https://uatracer.com/r/8y1TAp2O/Cu7AszRG/iframe",
"sec-fetch-dest": "image",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-7baa8954c50451af1a64c5984b76356b-c9c9407eda799568-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:02.387 UTC | +4158 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=2",
"referer": "https://uatracer.com/r/8y1TAp2O/Cu7AszRG/style.css",
"sec-fetch-dest": "style",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-9b5a3dfd507dd2c2058137e9c5737714-a1e28d26e951cdae-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:03.843 UTC | +5614 ms | JS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (16){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"host": "uatracer.com",
"priority": "u=4",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"te": "trailers",
"traceparent": "00-e17020d8eec6fd2d2d497efdce6b7c5f-38e13c2ddef77575-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-e17020d8eec6fd2d2d497efdce6b7c5f-13da1dd46699a368-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 09:50:04.644 UTC | +6415 ms | ES module | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (16){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"host": "uatracer.com",
"priority": "u=4",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"te": "trailers",
"traceparent": "00-420307ede9eb55b9798bc4c9d3dfaa85-ce518ed7b7b32ffc-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-420307ede9eb55b9798bc4c9d3dfaa85-7bb756ced9c59cb5-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-13 09:50:04.891 UTC | +6662 ms | JS executed beacon | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=5, i",
"referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
"sec-fetch-dest": "image",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-554970011cb147d00b83ed38cb5521ce-9f2238cac4deca0a-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:04.894 UTC | +6665 ms | ES module executed | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:04.896 UTC | +6667 ms | CSS background-image | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:04.902 UTC | +6673 ms | CSS @font-face | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:04.903 UTC | +6674 ms | CSP violation report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:04.908 UTC | +6679 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:04.909 UTC | +6680 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:05.308 UTC | +7079 ms | apple-touch-icon | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:05.319 UTC | +7090 ms | favicon | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:07.420 UTC | +9191 ms | client timing POST | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:11.387 UTC | +13158 ms | font (HTML) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:11.391 UTC | +13162 ms | CSS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:11.400 UTC | +13171 ms | preload (image) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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| 2026-07-13 09:50:11.463 UTC | +13234 ms | ES module | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
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"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:11.467 UTC | +13238 ms | iframe document | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (18){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=4",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "iframe",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-52fa9ec5fe0f9a924ba48caed0403428-02b62d3725921b60-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:11.467 UTC | +13238 ms | image | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=5",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "image",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-72c607a74561bb9a69fdf0cc2d744f7a-2ba2a297d2c1b3d1-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-13 09:50:11.479 UTC | +13250 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (21){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"content-length": "2846",
"content-type": "application/reports+json",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=4",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-2b560d59f951099a5c05ad38716caaf5-259d569e2ddcf38f-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
"x-report-body": "[\n {\n \"age\": 35,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"effectiveDirective\": \"style-src-elem\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 9,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 34,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 34,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n },\n {\n \"age\": 34,\n \"type\": \"csp-violation\",\n \"url\": \"https://uatracer.com/\",\n \"user_agent\": \"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0\",\n \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/8y1TAp2O/Cu7AszRG/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n }\n]"
}
|
||||
| 2026-07-13 09:50:12.742 UTC | +14513 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0 |
request headers (17){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "de",
"cookie": "ua-tracer-trace=8y1TAp2O",
"dnt": "1",
"host": "uatracer.com",
"priority": "u=2",
"referer": "https://uatracer.com/r/8y1TAp2O/Cu7AszRG/style.css",
"sec-fetch-dest": "style",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-gpc": "1",
"te": "trailers",
"traceparent": "00-10e6f48ae91a34ac2bf59549c8305eda-a2a97748d2a416ca-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:152.0) Gecko/20100101 Firefox/152.0",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
|
||||
Client-side resource waterfall
Reported by performance.getEntriesByType('resource') after JS ran in the UA. This proves a real
browser-grade engine, not just a downloader.
| Resource | Initiator | Start | Duration | Timeline |
|---|---|---|---|---|
| link | 2834ms | 2123ms | ||
| other | 2834ms | 2798ms | ||
| link | 2834ms | 3201ms | ||
| script | 2848ms | 3541ms | ||
| script | 2848ms | 4415ms | ||
| img | 2848ms | 4541ms | ||
| iframe | 2930ms | 1664ms | ||
| css | 5036ms | 2494ms | ||
| img | 7534ms | 1001ms | ||
| img | 7544ms | 675ms | ||
| css | 7545ms | 1338ms | ||
| other | 7548ms | 1667ms | ||
| other | 7549ms | 2039ms |