ua-tracer by Paul Kinlan

trace 4D7STC1A

ua-tracer

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

← all traces

Trace 4D7STC1A

First seen: 2026-07-27 06:20:44.267 UTC
User-Agent: amazon-Quick-on-behalf-of-fe79200d
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
2026-07-27 06:20:44.267 UTC +0 ms homepage GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "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",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "none",
  "sec-fetch-user": "?1",
  "traceparent": "00-14842b2c669ffdcbe0bc094ad3597f97-73733efb3d6f903d-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-14842b2c669ffdcbe0bc094ad3597f97-4dbfcdc3cfeb55d7-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.803 UTC +1536 ms CSS GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-b502e096e89bd5e7fabae8f596193506-025b1a3ea2d03f5b-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b502e096e89bd5e7fabae8f596193506-a90e10b55007fdc2-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.804 UTC +1537 ms font (HTML) GET amazon-Quick-on-behalf-of-fe79200d
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-b27b79638d06041210477efc250af354-1ec7c06d5f3de529-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b27b79638d06041210477efc250af354-9e1fb5b37e06c783-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.832 UTC +1565 ms preload (image) GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-217d4358e770679dde44a71233f1be49-47d752462430f066-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-217d4358e770679dde44a71233f1be49-9353f62b77432987-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.841 UTC +1574 ms prefetch GET amazon-Quick-on-behalf-of-fe79200d
request headers (21) 
{
  "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",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "sec-purpose": "prefetch",
  "traceparent": "00-ada97c3fe740cb0d9c15d89026bfc0ba-e376fe072ff23ecd-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ada97c3fe740cb0d9c15d89026bfc0ba-0be47f4d874f2e3e-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.852 UTC +1585 ms iframe document GET amazon-Quick-on-behalf-of-fe79200d
request headers (21) 
{
  "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",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-cd7f5207aec86c3abbe049196ae78864-7c42d3c4d9982446-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-cd7f5207aec86c3abbe049196ae78864-c9dad6ccce92b19a-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.859 UTC +1592 ms image GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-2391420d6ff1d683847e5fa59e51c953-01cf84be06a1517b-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-2391420d6ff1d683847e5fa59e51c953-347c8be2a47a3acc-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.861 UTC +1594 ms JS GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-235f9116a6957eee1e8249deedb7e5d2-5bb889ec927588f6-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-235f9116a6957eee1e8249deedb7e5d2-b5b8458d25a2749c-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:45.880 UTC +1613 ms ES module GET amazon-Quick-on-behalf-of-fe79200d
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-540c6b0eeb9e74f13daca82dd1b4f4d5-ab537f57e86b5173-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-540c6b0eeb9e74f13daca82dd1b4f4d5-b9417f312ed4717d-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:46.447 UTC +2180 ms CSS @import (nested stylesheet) GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/4D7STC1A/0AD4A81i/style.css",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-912e0d90da050fa3b840a75bd7caa5c2-0dbd5d1a0999162e-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-912e0d90da050fa3b840a75bd7caa5c2-f4b881ed32b31e93-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:47.186 UTC +2919 ms JS executed beacon GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-a1e7e6d1d2b8e9a852eb0977b05df19c-338b99b8e9c66b15-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-a1e7e6d1d2b8e9a852eb0977b05df19c-d6171674e7679254-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:47.248 UTC +2981 ms CSS background-image GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/4D7STC1A/0AD4A81i/style.css",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-2ae60b70e0f9b430ebe207561a76be71-28ad7afa4a527634-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-2ae60b70e0f9b430ebe207561a76be71-80581f881cdfedb4-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:47.269 UTC +3002 ms CSS @font-face GET amazon-Quick-on-behalf-of-fe79200d
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/4D7STC1A/0AD4A81i/style.css",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-ba91b56fe04d1a9ba03eac6083ad4777-711d1d4ead16176d-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ba91b56fe04d1a9ba03eac6083ad4777-dfa6c83a378bd94d-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:47.315 UTC +3048 ms image inside iframe GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/4D7STC1A/0AD4A81i/iframe",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-58798bfbe23118dc6be7865544d9b54c-575de8b0c7e4096a-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-58798bfbe23118dc6be7865544d9b54c-36452c592a92b45f-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:48.181 UTC +3914 ms ES module executed GET amazon-Quick-on-behalf-of-fe79200d
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-41b22660714c3fc49fcdcf8ac48bdbfe-329dce2231c7a362-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-41b22660714c3fc49fcdcf8ac48bdbfe-c9785b56c1927fe1-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:20:49.527 UTC +5260 ms client timing POST POST amazon-Quick-on-behalf-of-fe79200d
request headers (23) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "content-length": "2224",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"148\", \"HeadlessChrome\";v=\"148\", \"Not/A)Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-d40e7b7a9638cd3bef695b53515c1591-3dde002c50c862d0-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-d40e7b7a9638cd3bef695b53515c1591-19bc376e41d09dac-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:21:06.027 UTC +21760 ms image GET amazon-Quick-on-behalf-of-fe79200d
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "ua-tracer-trace=4D7STC1A",
  "host": "uatracer.com",
  "traceparent": "00-63aac61f7ca32755f3fc305b8f4b8203-f7d3c8c52402ce90-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe79200d",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-63aac61f7ca32755f3fc305b8f4b8203-13f8fbcc1a9650d3-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 05:09:53.381 UTC +168549114 ms prefetch 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-b5814b8939a525aba2c7119ddd70b514-a951e5c60e64b644-01",
  "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-b5814b8939a525aba2c7119ddd70b514-e4d953219bf0bace-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 07:13:28.920 UTC +175964653 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": "00-97f487f5d2e6262517b04234a5eb33e5-6e8dce72209a247e-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": "00-97f487f5d2e6262517b04234a5eb33e5-d1555a90dc27b793-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 11:45:45.332 UTC +192301065 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 (9) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-75b667bfdd027035262ebd5c37c967d4-dbaa0488eda854ab-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": "00-75b667bfdd027035262ebd5c37c967d4-cf8ffd7d911b1529-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 14:39:41.312 UTC +202737045 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-d6579bed8ad5567c37b946b3af3ceff8-f8a69a6ada0cf517-01",
  "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-d6579bed8ad5567c37b946b3af3ceff8-18f411522c5f7780-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 15:24:05.231 UTC +205400964 ms CSS background-image 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-da01e9bb26009e53010d2b62857906ad-542528a355f99889-01",
  "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-da01e9bb26009e53010d2b62857906ad-a6fc603caacf333e-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-29 20:28:49.323 UTC +223685056 ms image 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-ed6b17611da6700bd571044aa8d6a00d-f194f3329f2c0e72-01",
  "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-ed6b17611da6700bd571044aa8d6a00d-23a247e245735b68-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-30 00:54:17.599 UTC +239613332 ms image 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": "00-40619f8d186156085362da275352727c-05b88b8cedb83f65-01",
  "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"
}
2026-07-30 02:32:25.623 UTC +245501356 ms preload (image) 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": "00-8e12753365625f767cd3b9c07e4af1b0-b5635780f48e3488-01",
  "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": "00-8e12753365625f767cd3b9c07e4af1b0-8b9d291321c981cb-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 1571ms 491ms
font.woff2 link 1571ms 717ms
preload.png link 1571ms 2209ms
prefetch.png link 1573ms 1437ms
iframe iframe 1585ms 1268ms
photo.png img 1585ms 2272ms
main.js script 1585ms 953ms
module.js script 1586ms 1684ms
import.css css 2063ms 647ms
js-ran.gif?t=1785133246900 img 2712ms 749ms
css-bg.png css 2721ms 1214ms
css-font.woff2 css 2723ms 1424ms
module-ran.gif?t=1785133247463 img 3274ms 1166ms