ua-tracer by Paul Kinlan

trace wrq6VC38

ua-tracer

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

← all traces

Trace wrq6VC38

First seen: 2026-07-03 08:07:03.870 UTC
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
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
2026-07-03 08:07:03.870 UTC +0 ms homepage GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
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",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "none",
  "sec-fetch-user": "?1",
  "traceparent": "00-c2f19d5a701c22015dc8841cb8b80973-7796154f0eba9e8c-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-c2f19d5a701c22015dc8841cb8b80973-b0e58629010e8608-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.755 UTC +885 ms CSS GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-0576b0db8f177f4288ea67aa5bda9e8b-b0654beb4bc8af46-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-0576b0db8f177f4288ea67aa5bda9e8b-897a68c5eec60a59-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.756 UTC +886 ms font (HTML) GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-9b63bb99a837050bcc02664eae14740f-bb4bfbb86e3f2aaa-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-9b63bb99a837050bcc02664eae14740f-2ada68b841eae8d7-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.767 UTC +897 ms preload (image) GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-471299b73e46b496995c04160fc373f5-305f4de54596e649-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-471299b73e46b496995c04160fc373f5-1c923e617752bdf7-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.777 UTC +907 ms prefetch GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
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",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "sec-purpose": "prefetch",
  "traceparent": "00-5142d02b244d4fe28f061013b8dd672f-675051acd3025570-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-5142d02b244d4fe28f061013b8dd672f-f690aa086d20a556-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.778 UTC +908 ms iframe document GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
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",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-690574810375af30dd6ff05542e39bd8-03dc8d3143c2351e-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-690574810375af30dd6ff05542e39bd8-42d1c4e55504030c-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.780 UTC +910 ms JS GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-2e2a306d8259e158d44fdd12d81ffb36-129c1143865aecee-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-2e2a306d8259e158d44fdd12d81ffb36-b9185264929ebdfa-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.787 UTC +917 ms image GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-8193990d4c9cf2f66a841fe910240759-72385289119ec230-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-8193990d4c9cf2f66a841fe910240759-962c5e2a3ea22315-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:04.846 UTC +976 ms ES module GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-333ac920904ff0464189467f4fe44924-768194557256fc53-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-333ac920904ff0464189467f4fe44924-a79219d8c43f4937-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:05.159 UTC +1289 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/wrq6VC38/xdWc85UB/style.css",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-20dee8879399ecbf99b7e53c5514310e-893ab9aea9ad351b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-20dee8879399ecbf99b7e53c5514310e-9c34931996599095-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:05.818 UTC +1948 ms CSS @font-face GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/wrq6VC38/xdWc85UB/style.css",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-948542d6b27290c2a6c3f832b83b138b-f1d43d04992441af-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-948542d6b27290c2a6c3f832b83b138b-986a14e2825c8a38-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:06.404 UTC +2534 ms CSS background-image GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/r/wrq6VC38/xdWc85UB/style.css",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-fc6af07537bef5750c1011b0f726cf82-2106481d43daec8b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-fc6af07537bef5750c1011b0f726cf82-db3d795e535cf898-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:06.683 UTC +2813 ms JS executed beacon GET Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (18) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-9b69843409af81d631dde4f58598a471-8218811f93a7bb06-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-9b69843409af81d631dde4f58598a471-bad20def2638d12f-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-03 08:07:06.688 UTC +2818 ms CSP violation report (POST) POST Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36
request headers (22) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "content-length": "395",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=wrq6VC38",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not:A-Brand\";v=\"99\", \"HeadlessChrome\";v=\"145\", \"Chromium\";v=\"145\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Linux\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-809c12c1117f670b4e2cbf4ed0420fd5-a0b82423ff6d7686-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/145.0.7632.46 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
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  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-bc9d99038eb077b95798f6f984dbdfae-3119c18f08fd6204-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-13 10:02:19.969 UTC +870916099 ms ES module executed GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36
request headers (8) 
{
  "accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-635ec51324d853902dcaff7be884644b-b1de757c49a08537-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-07-13 10:02:19.970 UTC +870916100 ms CSS background-image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-232a8088b6ba5e6f81c16f90a2165a0a-c8a61de5b4474b71-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-232a8088b6ba5e6f81c16f90a2165a0a-5c29315769836aaf-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-13 10:02:20.057 UTC +870916187 ms prefetch GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "image/avif,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-cec0965cbb0528b533e2e3a6ec7f76a2-f89740ec960375ca-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-cec0965cbb0528b533e2e3a6ec7f76a2-bb0bc66bd95f6ff9-01",
  "x-deno-userspace-tracestate": ""
}
2026-08-11 06:24:41.516 UTC +3363457646 ms CSP violation report (POST) GET Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1
request headers (12) 
{
  "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",
  "accept-language": "zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7",
  "cache-control": "no-cache",
  "connection": "keep-alive, close",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "traceparent": "00-9d090b272885c3c2fb7237a86cc7ee9c-59efbfac76a3a32c-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-09-13 04:25:56.033 UTC +6207532163 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": "00-0e98f4c4fd2e266fc071a963d5bb2ecf-28efd5fdfd7c95e2-01",
  "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": "00-0e98f4c4fd2e266fc071a963d5bb2ecf-64c7b94e7c32f4d8-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 04:25:58.285 UTC +6207534415 ms image inside iframe 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": "00-2024f7f4c137f37ca5aa31cea1bde944-ee6110fb6f8fae6a-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": "00-2024f7f4c137f37ca5aa31cea1bde944-b253046bf330a5cb-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 06:50:47.604 UTC +6216223734 ms Reporting API report (POST) 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": "00-21afb0521641df700d4ee2478259ba61-14d23480f56ee4db-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": "00-21afb0521641df700d4ee2478259ba61-bbf2e955e725d528-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 07:19:22.536 UTC +6217938666 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": "00-9705addc755030e69223d45570fe5890-719855ee4fa2899b-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": "00-9705addc755030e69223d45570fe5890-fb32ebfdd00dcbfa-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 08:28:51.789 UTC +6222107919 ms CSP violation report (POST) 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": "00-058b42cf7fded79eb02a84afcdda3703-059b905baf6dbb19-01",
  "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": "00-058b42cf7fded79eb02a84afcdda3703-e7f22ecc9ff393b2-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 09:18:40.003 UTC +6225096133 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-b37dd062db4fd1a18ab7ff292da650cf-f442e232713920f5-01",
  "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-b37dd062db4fd1a18ab7ff292da650cf-b92d197b176cb88b-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 10:53:07.719 UTC +6230763849 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-db6737819fb89ccff2cb8e585f22dffe-0cc45bbf93e26943-01",
  "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-db6737819fb89ccff2cb8e585f22dffe-25fc24ccb313c322-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-13 13:00:20.232 UTC +6238396362 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 (7) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-20012058269c11b9d744ee30886effc8-27ed316ce817b0d4-01",
  "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"
}
2026-09-13 13:00:24.260 UTC +6238400390 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": "00-4f7bbcca28edcdf5cc54ef1accb789be-6ee40133034d5111-01",
  "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": "00-4f7bbcca28edcdf5cc54ef1accb789be-35b8a24d12a7ffcf-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 988ms 407ms
font.woff2 link 988ms 585ms
preload.png link 988ms 1190ms
prefetch.png link 991ms 789ms
iframe iframe 1012ms 1978ms
photo.png img 1012ms 1397ms
main.js script 1012ms 1898ms
module.js script 1013ms 2033ms
import.css css 1397ms 572ms
css-bg.png css 1975ms 1177ms
css-font.woff2 css 1976ms 668ms
js-ran.gif?t=1783066026662 img 2914ms 582ms
csp-report beacon 2917ms 400ms
report beacon 2921ms 797ms
module-ran.gif?t=1783066026796 img 3048ms 960ms