ua-tracer by Paul Kinlan

trace FRj4Pz9K

ua-tracer

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

← all traces

Trace FRj4Pz9K

First seen: 2026-07-07 12:35:35.100 UTC
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
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
2026-07-07 12:35:35.100 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "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, deflate, br, zstd",
  "accept-language": "en-US",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "none",
  "sec-fetch-user": "?1",
  "traceparent": "00-76d7192f1c21d273590ed49d065910be-c24bacb5ce6a8e55-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.490 UTC +1390 ms CSS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-2f3015f246ee633b965806e874fc1f20-abfbc3658c97d04a-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.492 UTC +1392 ms preload (image) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-667e8394017fc8bbbdfc35b0a42b08d0-1580a16d43fd37e4-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.492 UTC +1392 ms font (HTML) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-13e6eb4427d4a9f71665b126f670ef3b-7622467a8bac569f-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.494 UTC +1394 ms prefetch GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (15) 
{
  "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, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "purpose": "prefetch",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-d03de205eb3ea5b433184aeff6032d34-9b035e84aa779e3b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.494 UTC +1394 ms Reporting API report (POST) POST Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36
request headers (12) 
{
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "content-length": "515",
  "content-type": "application/reports+json",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "traceparent": "00-bd3e18d00b21d0fcb949a9a82d81c26b-498036b137244937-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "[{\"age\":0,\"body\":{\"blockedURL\":\"inline\",\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-elem\",\"lineNumber\":9,\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36\"}]"
}
2026-07-07 12:35:36.522 UTC +1422 ms image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-3374b82f79394fde8718d8271d7fdb62-db59ef827b330faf-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.524 UTC +1424 ms JS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-b284f3a15ee078c3192015ed7913ba81-1c81179bf1f27dfc-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.526 UTC +1426 ms iframe document GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (15) 
{
  "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, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-0354fdf24a90f577cdb0c19d712df807-82ba8d12c5f2d25b-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:36.536 UTC +1436 ms ES module GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-37526013e1ae35f476e4d1844434a1da-69abdf9605d107e4-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:37.157 UTC +2057 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/style.css",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-59083cd8a720083a5899526236cf12e1-8a2763c32ef2c09b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:38.084 UTC +2984 ms image inside iframe GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/iframe",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-e99739d60d384adc23b9d0ff777a3ca3-c5ecc08a287a87c4-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:38.335 UTC +3235 ms CSS background-image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/style.css",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-d9b994385577427027aadad50521c23a-b97d9418c2ff2dce-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:38.379 UTC +3279 ms CSS @font-face GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/style.css",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-2dd7a32a49b3bb5be762fdbea8d73dba-1c20af8b63f0b566-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:38.699 UTC +3599 ms JS executed beacon GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-5e4735d553865aac55323869bdf8af4f-52881df43223d771-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:38.702 UTC +3602 ms CSP violation report (POST) POST Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "content-length": "362",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-e862c71882a998c6fdc5c52254deb2af-9a748235b2e3efdd-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"source\":\"securitypolicyviolation\",\"violatedDirective\":\"style-src-attr\",\"effectiveDirective\":\"style-src-attr\",\"blockedURI\":\"inline\",\"documentURI\":\"https://uatracer.com/\",\"disposition\":\"report\",\"lineNumber\":45,\"sourceFile\":\"https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/main.js\",\"ua\":\"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0\"}"
}
2026-07-07 12:35:38.705 UTC +3605 ms Reporting API report (POST) POST Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "content-length": "2155",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-da3ecdb3168967f5b7c1f3f095b34108-44a9026459690219-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"source\":\"ReportingObserver\",\"reports\":[{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":9,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-elem\",\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":243,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":247,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":755,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/main.js\",\"lineNumber\":45,\"columnNumber\":11,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}}],\"ua\":\"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0\"}"
}
2026-07-07 12:35:38.721 UTC +3621 ms ES module executed GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-76e2329ed5f745d6ca44d5ba9a1a5f2c-d47953e085b94f18-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:39.652 UTC +4552 ms favicon GET Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (14) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=1, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-19954eacb7db92a176db92b605316134-613232261c23d9c0-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:40.253 UTC +5153 ms client timing POST POST Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "content-length": "2763",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-26469ea93552255d3399a337b6d8129c-5daea7e261b8e7fb-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-07 12:35:44.269 UTC +9169 ms favicon GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "application/json, text/plain, */*",
  "accept-encoding": "gzip, compress, deflate, br",
  "connection": "keep-alive",
  "host": "uatracer.com",
  "traceparent": "00-e5b4ed7b50d82107d81d7c824d4cd11e-0cf8ba53907ba1dc-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-e5b4ed7b50d82107d81d7c824d4cd11e-9f92e18915c3f076-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-07 12:35:44.874 UTC +9774 ms Reporting API report (POST) POST Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36
request headers (12) 
{
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US",
  "content-length": "2121",
  "content-type": "application/reports+json",
  "cookie": "ua-tracer-trace=FRj4Pz9K",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "traceparent": "00-23f4e69d8c9ebf3ee698701825466db2-cc21a7efff331cdd-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "[{\"age\":8351,\"body\":{\"blockedURL\":\"inline\",\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-attr\",\"lineNumber\":755,\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36\"},{\"age\":8381,\"body\":{\"blockedURL\":\"inline\",\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-attr\",\"lineNumber\":247,\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36\"},{\"age\":8381,\"body\":{\"blockedURL\":\"inline\",\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-attr\",\"lineNumber\":243,\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36\"},{\"age\":6173,\"body\":{\"blockedURL\":\"inline\",\"columnNumber\":11,\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-attr\",\"lineNumber\":45,\"originalPolicy\":\"style-src 'self'; report-uri /r/FRj4Pz9K/1kUDdgT3/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/r/FRj4Pz9K/1kUDdgT3/main.js\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.0.0 Safari/537.36\"}]"
}

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 1654ms 670ms
font.woff2 link 1655ms 2182ms
preload.png link 1655ms 875ms
prefetch.png link 1661ms 429ms
iframe iframe 1692ms 1540ms
photo.png img 1692ms 1298ms
main.js script 1695ms 2173ms
module.js script 1695ms 2128ms
import.css css 2325ms 1177ms
css-bg.png css 3505ms 675ms
css-font.woff2 css 3505ms 480ms
js-ran.gif?t=1783427738675 img 3870ms 692ms
csp-report beacon 3873ms 1258ms
report beacon 3873ms 461ms
module-ran.gif?t=1783427738679 img 3874ms 946ms
favicon.ico other 4823ms 477ms