ua-tracer by Paul Kinlan

trace I50iu37v

ua-tracer

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

← all traces

Trace I50iu37v

First seen: 2026-09-19 17:42:16.610 UTC
User-Agent: Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
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
2026-09-19 17:42:16.610 UTC +0 ms homepage GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
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",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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": "00-9ca63e682659478b0aaa1e83aab31dd9-489ec19632315216-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:20.519 UTC +3909 ms prefetch GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
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",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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-cfa8d3e5ff3e9866c120b9b3324a5e36-220fb509fd7feee4-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:20.522 UTC +3912 ms CSS GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (19) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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": "00-5f316f365e64523bf693b9076f4e477c-1febb73b8d95b2eb-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:20.566 UTC +3956 ms iframe document GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
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",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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-bb7cd442928b7a4c079728dc63f79b70-c7c2bc57e84acd9e-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:20.571 UTC +3961 ms JS GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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-a962107ea1c01197b1e25a108ac2711e-ad5126c485e9258d-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:20.575 UTC +3965 ms ES module GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-9bca88601efaf1bc361b6b9d5f6c9644-8f0faaf8a4a8f6a7-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:21.816 UTC +5206 ms CSS @import (nested stylesheet) GET Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (19) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "cookie": "ua-tracer-trace=I50iu37v",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/I50iu37v/4p4l0oYw/style.css",
  "sec-ch-ua": "\"Not/A)Brand\";v=\"99\", \"Chromium\";v=\"148\"",
  "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": "00-2d43f72d821fae640ed9112d0641208b-ac0b6c9068d68069-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 17:42:22.814 UTC +6204 ms CSP violation report (POST) POST Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (23) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "content-length": "353",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=I50iu37v",
  "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=\"99\", \"Chromium\";v=\"148\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-5ad0439730dabe171442ea21eb67d02f-d9361796f3f6ac50-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"source\":\"securitypolicyviolation\",\"violatedDirective\":\"style-src-attr\",\"effectiveDirective\":\"style-src-attr\",\"blockedURI\":\"inline\",\"documentURI\":\"https://uatracer.com/\",\"disposition\":\"report\",\"lineNumber\":45,\"sourceFile\":\"https://uatracer.com/r/I50iu37v/4p4l0oYw/main.js\",\"ua\":\"Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)\"}"
}
2026-09-19 17:42:22.871 UTC +6261 ms Reporting API report (POST) POST Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (23) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "content-length": "2146",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=I50iu37v",
  "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=\"99\", \"Chromium\";v=\"148\"",
  "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-b98d8196e94d6b295b6e0c2f4ff9779c-c2f360e14fe85982-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"source\":\"ReportingObserver\",\"reports\":[{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":9,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-elem\",\"originalPolicy\":\"style-src 'self'; report-uri /r/I50iu37v/4p4l0oYw/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":243,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/I50iu37v/4p4l0oYw/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":247,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/I50iu37v/4p4l0oYw/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":755,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/I50iu37v/4p4l0oYw/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/r/I50iu37v/4p4l0oYw/main.js\",\"lineNumber\":45,\"columnNumber\":11,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/I50iu37v/4p4l0oYw/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}}],\"ua\":\"Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)\"}"
}
2026-09-19 17:42:24.385 UTC +7775 ms client timing POST POST Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
request headers (22) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "en-US,en;q=0.9",
  "cache-control": "no-cache",
  "content-length": "2576",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=I50iu37v",
  "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=\"99\", \"Chromium\";v=\"148\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-542cc074696e410c388196cd0a47b88d-2c59cff9e97ff6d0-01",
  "tracestate": "",
  "user-agent": "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 20:08:30.894 UTC +8774284 ms image inside iframe GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
request headers (9) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,image/svg+xml,image/gif,image/*,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
  "accept-encoding": "gzip, deflate",
  "connection": "keep-alive",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-19c6a1217321e3dab418c0546a151d9e-5f4464b8cec6e3ee-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-09-19 20:08:31.110 UTC +8774500 ms image GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
request headers (9) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,image/svg+xml,image/gif,image/*,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
  "accept-encoding": "gzip, deflate",
  "connection": "keep-alive",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-59587b0695465a18d795c5971c623b7d-7e51df0b6cdd9660-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-09-22 04:03:52.456 UTC +210095846 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 (7) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-e42f2bfe7d88b7f38b73f014536cec22-e05de1e26bb8e2ff-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"
}
2026-09-22 05:16:57.238 UTC +214480628 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 (7) 
{
  "accept-encoding": "gzip,deflate",
  "connection": "close",
  "host": "uatracer.com",
  "traceparent": "00-ccd12043ce94dbd1cd897013072331cb-d2660ef98969400c-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"
}
2026-09-22 05:17:00.563 UTC +214483953 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-d86604830f05c9a17dde2140fb4d4a58-4d5793179f7c9e1f-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-d86604830f05c9a17dde2140fb4d4a58-a6bd1b59e59f81a9-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-22 09:18:04.498 UTC +228947888 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": "00-731474b8c57f9f04f3798a960784c8d8-1e43fd7ab7034481-01",
  "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": "00-731474b8c57f9f04f3798a960784c8d8-4053599fe3ca0888-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-22 11:16:44.230 UTC +236067620 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": "00-41f2a9a969fe8db2d97c8313a867617b-40e4c0acaa768f58-01",
  "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": "00-41f2a9a969fe8db2d97c8313a867617b-9087205480879f44-01",
  "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 4409ms 1426ms
font.woff2 link 4409ms 105ms
preload.png link 4409ms 105ms
prefetch.png link 4423ms 1064ms
iframe iframe 4542ms 1599ms
photo.png img 4542ms 67ms
main.js script 4543ms 1966ms
module.js script 4543ms 2742ms
import.css css 5851ms 880ms
js-ran.gif?t=1789839742595 img 6749ms 57ms
csp-report beacon 6757ms 1025ms
css-bg.png css 6759ms 59ms
css-font.woff2 css 6759ms 88ms
module-ran.gif?t=1789839743206 img 7359ms 178ms
favicon.ico other 7619ms 81ms