ua-tracer by Paul Kinlan

trace QUUx5td6

ua-tracer

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

← all traces

Trace QUUx5td6

First seen: 2026-07-13 10:10:15.154 UTC
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; 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.

ReceivedΔKindMethodUser-Agent
2026-07-13 10:10:15.154 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; 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": "ro,en;q=0.9,en-US;q=0.8",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "referer": "https://mail.google.com/",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "cross-site",
  "sec-fetch-user": "?1",
  "te": "trailers",
  "traceparent": "00-ca9caef47270cd9196bdb3eb3a865cf7-d52b42e6e5ee5fc6-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.200 UTC +2046 ms CSS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-d15e4ed49580227725d6860270732841-d8b4160d1a6895b5-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.202 UTC +2048 ms font (HTML) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "application/font-woff2;q=1.0,application/font-woff;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-d828324c64709bcd76a1d10848ce93e5-c23db23812dc2725-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.209 UTC +2055 ms preload (image) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "image/avif,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-da666172c620b1c02363c8f4262c3392-1c904a6e9950540e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.233 UTC +2079 ms JS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-e11f8bd3cde9dec64c01ee26f855bc04-7aed502cc4be3410-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.255 UTC +2101 ms image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "image/avif,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-a318177a714503d9f244a2264a31e493-1b49f8fd6be7974e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.259 UTC +2105 ms ES module GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-ac4495647ed756cd31b0b953a6c313d9-13541c8f1ec053c3-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.267 UTC +2113 ms iframe document GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; 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": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-dbda80e3cff8e2378b85483605e48b0b-7ba49ed5539c5cc6-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:17.275 UTC +2121 ms Reporting API report (POST) POST Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "content-length": "3654",
  "content-type": "application/reports+json",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-6dfa997b9880d6fd018c79f908af3329-fabb349a5ca3cf45-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-report-body": "[\n {\n  \"age\": 4,\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 (Windows NT 10.0; Win64; x64; 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\": \"https://mail.google.com/\",\n \"effectiveDirective\": \"style-src-elem\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/QUUx5td6/6bd93QwZ/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\": 4,\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 (Windows NT 10.0; Win64; x64; 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\": \"https://mail.google.com/\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/QUUx5td6/6bd93QwZ/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\": 4,\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 (Windows NT 10.0; Win64; x64; 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\": \"https://mail.google.com/\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/QUUx5td6/6bd93QwZ/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\": 4,\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 (Windows NT 10.0; Win64; x64; 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\": \"https://mail.google.com/\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/QUUx5td6/6bd93QwZ/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 10:10:17.924 UTC +2770 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=2",
  "referer": "https://uatracer.com/r/QUUx5td6/6bd93QwZ/style.css",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-ae9fef6e94abc2ab004b2b2d9aebbbe2-78f013c48a3b1a48-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:19.299 UTC +4145 ms CSS background-image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "image/avif,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/r/QUUx5td6/6bd93QwZ/style.css",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-bcb41e9a597e3b96e0e9f2d035ca7bff-533a69095ce34b1c-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:20.567 UTC +5413 ms JS executed beacon GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (16) 
{
  "accept": "image/avif,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "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",
  "te": "trailers",
  "traceparent": "00-224073c79555f36dc3e49561f7cef062-9b03b68918058cbf-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:10:20.568 UTC +5414 ms CSP violation report (POST) POST Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "ro,en;q=0.9,en-US;q=0.8",
  "content-length": "464",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=QUUx5td6",
  "dnt": "1",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=6",
  "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",
  "te": "trailers",
  "traceparent": "00-e97347e06b3d76e9f57e654ebce9d92e-17ecc9d3d8712991-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
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}
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  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-07-16 18:17:02.259 UTC +288407105 ms JS executed beacon GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36
request headers (9) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-6aa8282979b418cfb0166a8e36714f0d-2c3b028626adb210-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-6aa8282979b418cfb0166a8e36714f0d-12c0da5d615a9c40-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-16 19:28:27.338 UTC +292692184 ms iframe document GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36
request headers (7) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-3fc9619cbc93c8c610fbba6b2a331846-26c64c2e59496ea9-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-07-16 22:59:07.946 UTC +305332792 ms ES module executed GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36
request headers (9) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-9da48f30dde0c4fed1b3d7d82c9e238e-e2fc1e6d03c0a51e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-9da48f30dde0c4fed1b3d7d82c9e238e-5b857202c1cd1709-01",
  "x-deno-userspace-tracestate": ""
}

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.

ResourceInitiatorStartDurationTimeline
style.css link 2943ms 693ms
font.woff2 other 2943ms 1021ms
preload.png link 2943ms 1367ms
photo.png img 2985ms 1708ms
module.js script 2985ms 3262ms
main.js script 2985ms 3330ms
iframe iframe 3006ms 3358ms
apple-touch-icon.png other 3019ms 4717ms
favicon.ico other 3020ms 4286ms
import.css css 3677ms 1360ms
css-bg.png css 5047ms 789ms
js-ran.gif?t=1783937428778 img 6319ms 718ms
csp-report other 6319ms 2137ms
report other 6319ms 2500ms
module-ran.gif?t=1783937428795 img 6334ms 3326ms
css-font.woff2 other 7016ms 1057ms