ua-tracer by Paul Kinlan

trace KfUdl1Z6

ua-tracer

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

← all traces

Trace KfUdl1Z6

First seen: 2026-09-28 03:31:06.162 UTC
User-Agent: amazon-Quick-on-behalf-of-e56dd987
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
2026-09-28 03:31:06.162 UTC +0 ms homepage GET amazon-Quick-on-behalf-of-e56dd987
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": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-7e404d8c023aecfb7aa36da778754cb1-c38e4a69947a1de0-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-7e404d8c023aecfb7aa36da778754cb1-54d981f21ea1631e-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.404 UTC +242 ms CSS GET amazon-Quick-on-behalf-of-e56dd987
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-2b1e0d59601de500459ac9bb477514ea-cdc52a8ae702a942-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-2b1e0d59601de500459ac9bb477514ea-9db27678190b9790-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.405 UTC +243 ms font (HTML) GET amazon-Quick-on-behalf-of-e56dd987
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-635d0d52770ded559e5e1083bc6f342d-d9053a5069f6aed6-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-635d0d52770ded559e5e1083bc6f342d-f8fe37a8e68dbb3d-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.411 UTC +249 ms prefetch GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-1edc26442d6e2c883a94312b4fb784aa-fc9b3ad94805e071-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-1edc26442d6e2c883a94312b4fb784aa-4200dbd6997d8d11-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.411 UTC +249 ms preload (image) GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-f97d635d13b771a0aabee6cc94439482-2570b4ecf6dac876-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f97d635d13b771a0aabee6cc94439482-d79f57d9e42576f5-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.450 UTC +288 ms JS GET amazon-Quick-on-behalf-of-e56dd987
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-81934ab81b2a7ce30440048483138c3b-d59288f53ffc1895-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-81934ab81b2a7ce30440048483138c3b-9bcc33fd38e1d676-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.451 UTC +289 ms image GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-1f77177034313274867f9edbcf62db2b-325232377e62fcac-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-1f77177034313274867f9edbcf62db2b-c9e8bf4420276665-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.455 UTC +293 ms iframe document GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-f320f873722666d26934a8dc1899e27e-9c3773bc0be42291-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f320f873722666d26934a8dc1899e27e-53c64b7d8fbe428a-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.455 UTC +293 ms ES module GET amazon-Quick-on-behalf-of-e56dd987
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-b442181c03cbc153154edd0883414707-24791a05b545bcb9-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b442181c03cbc153154edd0883414707-c810e8aa3ba93383-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.477 UTC +315 ms CSS @import (nested stylesheet) GET amazon-Quick-on-behalf-of-e56dd987
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/KfUdl1Z6/y5hkPQNX/style.css",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-8b4013b8718730bfce9798da3c7e914d-2a0422746b85eda6-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-8b4013b8718730bfce9798da3c7e914d-b4b3ced66a3ae2a9-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.572 UTC +410 ms image inside iframe GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/KfUdl1Z6/y5hkPQNX/iframe",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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": "00-797b77f24859d71bd1eeaebcd6f3ed26-4687e96fb945d1d6-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-797b77f24859d71bd1eeaebcd6f3ed26-31cd58665cb90bc9-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.688 UTC +526 ms CSS @font-face GET amazon-Quick-on-behalf-of-e56dd987
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/KfUdl1Z6/y5hkPQNX/style.css",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-77c858355e63264feee42590c2934b44-d89d9644595f373c-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-77c858355e63264feee42590c2934b44-cfbfae3cef81772e-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.691 UTC +529 ms JS executed beacon GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-ba161bd4c6cf35a7ededf8f9141c7c05-0f322b16aa739ee7-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ba161bd4c6cf35a7ededf8f9141c7c05-469900354ded5938-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.691 UTC +529 ms CSS background-image GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/r/KfUdl1Z6/y5hkPQNX/style.css",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-d4338af2c8a4034fd86342c0d97b6dd6-df1ed0ad5a12d2fd-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-d4338af2c8a4034fd86342c0d97b6dd6-8c3fc441b9559b1c-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:06.691 UTC +529 ms ES module executed GET amazon-Quick-on-behalf-of-e56dd987
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": "[redacted]",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-c6cb8f9d982fc2d160bd797f56871690-ad5e28fcc67a6557-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-c6cb8f9d982fc2d160bd797f56871690-8212550bfa7dda11-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:07.428 UTC +1266 ms client timing POST POST amazon-Quick-on-behalf-of-e56dd987
request headers (23) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "content-length": "2199",
  "content-type": "application/json",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"HeadlessChrome\";v=\"150\"",
  "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-f2b7f880dc044eb8ac04808ca45a12ca-ddfb9a3a90f5156d-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f2b7f880dc044eb8ac04808ca45a12ca-b1997d35f33f7634-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-28 03:31:09.006 UTC +2844 ms image GET amazon-Quick-on-behalf-of-e56dd987
request headers (8) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-8def56ad5566872085924c15a5f93b78-3176c5f387ac36fd-01",
  "tracestate": "",
  "user-agent": "amazon-Quick-on-behalf-of-e56dd987",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-09-28 11:08:20.980 UTC +27434818 ms CSS @font-face 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": "00-4c59f2bc32fb279ce0ae5bec0f4bed36-374f424fac3d6b9e-01",
  "tracestate": "",
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  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-09-29 13:45:15.208 UTC +123249046 ms prefetch GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-ce02a1e3d889ec3b05b0a2f922e85031-68ac83ffeb891a6e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ce02a1e3d889ec3b05b0a2f922e85031-f04b6e9c5373356e-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-29 13:45:15.213 UTC +123249051 ms image GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-752ccf8bce25b5c74acc413aca01d952-a73f340e5352ac96-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-752ccf8bce25b5c74acc413aca01d952-3bf511053f233fa8-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-29 13:45:16.255 UTC +123250093 ms preload (image) GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-bceeaf947d3eb2d9c2977bbb6cc737ba-790c4b61bd9e1f9f-01",
  "tracestate": "",
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  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-bceeaf947d3eb2d9c2977bbb6cc737ba-698d64d8e6f29364-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-29 13:53:27.370 UTC +123741208 ms CSS background-image GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
request headers (8) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-970805ac9fb37ed42366d1762349ff5f-bf2f12b6ab8e0e23-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-09-30 07:00:10.532 UTC +185344370 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-d4e96f54cea062d24d439b3c4d811570-b9fe33f2cbe8bef1-01",
  "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-d4e96f54cea062d24d439b3c4d811570-59e33c7f5748c9a7-01",
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}
2026-09-30 07:51:54.626 UTC +188448464 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": "00-76a3ae96278a52c4dab6d03c028b512f-543934a90167802b-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": "00-76a3ae96278a52c4dab6d03c028b512f-c3828e2f0ea3dade-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-30 11:15:55.333 UTC +200689171 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-d7ca958cd1f9dc9bd3e90bd07822674e-6d0372769bf2afae-01",
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  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-d7ca958cd1f9dc9bd3e90bd07822674e-290cf571a3cd9784-01",
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}
2026-09-30 11:15:56.652 UTC +200690490 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": "00-4fca35c67aa85899b17055f978e8e686-ded1af1f57623ae4-01",
  "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": "00-4fca35c67aa85899b17055f978e8e686-b41088025d7582c9-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-30 14:23:34.558 UTC +211948396 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-d28f9b4cff8968f81d6c8c4533b37e07-334a2e7246bd017b-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-d28f9b4cff8968f81d6c8c4533b37e07-a60c0628daad8c9c-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-30 14:23:38.681 UTC +211952519 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": "00-57405742ce704ef6a092300db993f56d-3212645f17855604-01",
  "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": "00-57405742ce704ef6a092300db993f56d-85adc77f4f9c248c-01",
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}
2026-09-30 22:01:48.687 UTC +239442525 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) 
{
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  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-78546577b39cb1a4a8f123974fb84c28-6fcb9438a992c30e-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": "00-78546577b39cb1a4a8f123974fb84c28-a3d615c5bb4181cc-01",
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}
2026-09-30 23:22:52.225 UTC +244306063 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) 
{
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  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-dde96a5b5ec47b357330cdf4cc5496e3-551af64d70413908-01",
  "tracestate": "",
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  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-dde96a5b5ec47b357330cdf4cc5496e3-398a59777bfaad75-01",
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}
2026-10-13 23:31:08.742 UTC +1368002580 ms iframe document GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Reflectionbot/1.0; +https://reflection.ai/bot) Chrome/151.0.0.0 Safari/537.36
request headers (15) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
  "accept-encoding": "gzip,deflate,br",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "none",
  "sec-fetch-user": "?1",
  "traceparent": "00-f847ebb8561aafc5607281171b635633-f323fd41925434e7-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Reflectionbot/1.0; +https://reflection.ai/bot) Chrome/151.0.0.0 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f847ebb8561aafc5607281171b635633-a96a59a39a628d6e-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 200ms 104ms
font.woff2 link 200ms 199ms
preload.png link 200ms 135ms
prefetch.png link 201ms 176ms
iframe iframe 227ms 184ms
photo.png img 227ms 159ms
main.js script 227ms 133ms
module.js script 227ms 215ms
import.css css 306ms 170ms
css-bg.png css 509ms 98ms
css-font.woff2 css 510ms 74ms
js-ran.gif?t=1790566266663 img 523ms 112ms
module-ran.gif?t=1790566266665 img 525ms 142ms