ua-tracer by Paul Kinlan

trace bt1K1zIh

ua-tracer

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

← all traces

Trace bt1K1zIh

First seen: 2026-07-25 14:54:19.644 UTC
User-Agent: amazon-Quick-on-behalf-of-fe0b6c16
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
2026-07-25 14:54:19.644 UTC +0 ms homepage GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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": "00-1aad344f837d1458df0bdff45be09e80-d7760ea5666f97f0-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:21.471 UTC +1827 ms CSS GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "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": "00-72dde52ade11c9b4181aafc887089ce1-82b632a66f6d9449-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:21.552 UTC +1908 ms font (HTML) GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "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": "00-4e46294dce27aed849960df47253623c-5845b74836b349be-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:21.578 UTC +1934 ms preload (image) GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "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-eb7464efafda23f3df4d8cb89e768192-87794aa26b393a6f-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:21.582 UTC +1938 ms prefetch GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (19) 
{
  "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=bt1K1zIh",
  "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": "00-9a1446956c5819564f4f141c9b51e2aa-6f19e0909b478112-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:22.622 UTC +2978 ms image GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "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-bcdcc5966fbf989683df77a81c61b56e-0ecc4f618aea772c-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:22.722 UTC +3078 ms JS GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "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": "00-2b2929271577029e28496316d72ab91a-9506fbf6ea499c7d-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:22.726 UTC +3082 ms ES module GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "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": "00-8f731608d3f984f6226059c891701e14-514c7ddddfa78a2b-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:22.726 UTC +3082 ms iframe document GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (19) 
{
  "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=bt1K1zIh",
  "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": "00-279018b773c76e48adf1f4cbe5bcca50-effa9c9f805581a3-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:23.832 UTC +4188 ms CSS @import (nested stylesheet) GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/bt1K1zIh/M7vCUDeQ/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": "00-92ed65a955728c2a107a70225b951196-955a63f22424a6d1-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:25.363 UTC +5719 ms image inside iframe GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/bt1K1zIh/M7vCUDeQ/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": "00-072fa30286b56395f7d563d5970b4e60-1f11c70316b02cbe-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:25.587 UTC +5943 ms JS executed beacon GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "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-d2638969d501843924f575c3cbe5c026-701acb21bdda0ef5-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:25.590 UTC +5946 ms CSS background-image GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/bt1K1zIh/M7vCUDeQ/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": "00-633d85c6e9124b53ead3313aa200ae3a-418a1b590cc27e0a-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:25.602 UTC +5958 ms CSS @font-face GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/bt1K1zIh/M7vCUDeQ/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": "00-0774df992c4fe13062d868a5a7cb0765-0322f103f610fd32-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:25.606 UTC +5962 ms ES module executed GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (18) 
{
  "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=bt1K1zIh",
  "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": "00-7b98705bf25b1abac5ff70fb13f85392-08e1bf07cae6b430-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:30.030 UTC +10386 ms client timing POST POST amazon-Quick-on-behalf-of-fe0b6c16
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "content-length": "2230",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "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": "00-84b19a48404487047ea25c4916caddb9-fbfb79168ab250fe-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-07-25 14:54:33.682 UTC +14038 ms image GET amazon-Quick-on-behalf-of-fe0b6c16
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "ua-tracer-trace=bt1K1zIh",
  "host": "uatracer.com",
  "traceparent": "00-769a4fdcc5684cd4bf8ecc0c83e4bf9b-0907c0fa72230557-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-fe0b6c16",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-769a4fdcc5684cd4bf8ecc0c83e4bf9b-1fb6968db50c3510-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 05:42:30.827 UTC +139691183 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-b4bed7ba0a40889fdfca4ab4c1f8517b-45b144aa1275f73f-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-b4bed7ba0a40889fdfca4ab4c1f8517b-b6ba1eb06d18878f-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 05:42:31.371 UTC +139691727 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-e9f8de834936a644a29649864b2b360c-1f925f5ced11b033-01",
  "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-e9f8de834936a644a29649864b2b360c-686aa86aac0808a2-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:27:11.925 UTC +142372281 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-a546fa29879e7495803873cfd352a098-1086f9089f14cefd-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-a546fa29879e7495803873cfd352a098-b08d61758735baeb-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 06:27:16.073 UTC +142376429 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": "00-08a236165888806d5b1820b331a55475-9cf5766baf4389fb-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": "00-08a236165888806d5b1820b331a55475-69fcb3fd3265f2fd-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 09:13:50.773 UTC +152371129 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": "00-4aba181121d6a013fd1a69ec9774fa2b-531ef49f20f038e2-01",
  "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": "00-4aba181121d6a013fd1a69ec9774fa2b-9c8c09d1139b5b78-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-27 09:53:51.733 UTC +154772089 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": "00-24d2d5e05c9f6cc70a69edc8a79b1cc1-262177a4d86eeb28-01",
  "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"
}
2026-07-27 23:30:07.399 UTC +203747755 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": "00-73d6e9bfc42ebcac7a19ab544650c5f7-37b075aa9789e6f1-01",
  "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": "00-73d6e9bfc42ebcac7a19ab544650c5f7-f460ce3717527ec2-01",
  "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 1979ms 811ms
font.woff2 link 1979ms 1083ms
preload.png link 1979ms 1544ms
prefetch.png link 1984ms 1287ms
iframe iframe 2018ms 2603ms
photo.png img 2018ms 1909ms
main.js script 2018ms 2196ms
module.js script 2019ms 2399ms
import.css css 2790ms 2279ms
js-ran.gif?t=1784991264239 img 5071ms 1944ms
css-bg.png css 5072ms 1742ms
css-font.woff2 css 5072ms 2168ms
module-ran.gif?t=1784991264282 img 5113ms 2400ms