ua-tracer by Paul Kinlan

trace 0C6zCscF

ua-tracer

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

← all traces

Trace 0C6zCscF

First seen: 2026-07-15 08:06:10.070 UTC
User-Agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile 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
2026-07-15 08:06:10.070 UTC +0 ms homepage GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile 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",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "cross-site",
  "traceparent": "00-b4debec1687f0e40ee1899b4afde40cc-e4c39d674e576116-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b4debec1687f0e40ee1899b4afde40cc-8cbfcf74fa74f5c6-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.353 UTC +2283 ms CSS GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-50619a55d66d165638201ff99dd829cd-47fc36ab959c8123-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-50619a55d66d165638201ff99dd829cd-58c10d635daeada4-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.373 UTC +2303 ms ES module GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-21be23551a5a2c9ccb52e9288f8b62a5-928efca218045313-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-21be23551a5a2c9ccb52e9288f8b62a5-b4a0006ff0af6a37-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.377 UTC +2307 ms font (HTML) GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (21) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=1",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-f397781c8c904868ce15810f03d601b2-ad0b4db08966ae7b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f397781c8c904868ce15810f03d601b2-464f3bead63e00ff-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.377 UTC +2307 ms JS GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=2",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-7cf0df6b4bd3e0a16fe571250aac024f-bff386ce57598f46-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-7cf0df6b4bd3e0a16fe571250aac024f-09bb4abb99f9b196-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.381 UTC +2311 ms preload (image) GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-c617b72e755f1b6729d3d2bf7310636d-10defeaa501f5a09-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-c617b72e755f1b6729d3d2bf7310636d-ce2cb15eccf6d7ac-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.387 UTC +2317 ms image GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-765ab6957ed89eac821f6c5a3a8ea51b-16d024cf59412138-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-765ab6957ed89eac821f6c5a3a8ea51b-37ca3de24517ce2a-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.510 UTC +2440 ms iframe document GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
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",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-f44d975704ad48f6ebce2491ca98d696-e9ba4fed16b9b404-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f44d975704ad48f6ebce2491ca98d696-46caeaa8adb0c090-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:12.517 UTC +2447 ms prefetch GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
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",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "sec-purpose": "prefetch",
  "traceparent": "00-8b47fb92e269233e03a15673b42a80fd-52c5f6e025d364b7-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-8b47fb92e269233e03a15673b42a80fd-0fc568b14f1fcead-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:13.520 UTC +3450 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/0C6zCscF/0Fwln5SI/style.css",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-c0c107738ca43169bdc42c7f0484e229-bde495d1a489523f-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-c0c107738ca43169bdc42c7f0484e229-77b318fb940d4efb-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:15.285 UTC +5215 ms JS executed beacon GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-1e2549fa15e83480b4f753332cb35432-46b06756700a9918-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-1e2549fa15e83480b4f753332cb35432-b30acf7c7af258c0-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:15.285 UTC +5215 ms ES module executed GET Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (20) 
{
  "accept": "image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "priority": "i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
  "sec-ch-ua-mobile": "?1",
  "sec-ch-ua-platform": "\"Android\"",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-a2e3724adb5916a425e00778918adf59-243012b0455481e2-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-a2e3724adb5916a425e00778918adf59-4e01291d356be0f5-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-15 08:06:15.287 UTC +5217 ms CSP violation report (POST) POST Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
request headers (24) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "cs-CZ,cs;q=0.9,en;q=0.8",
  "content-length": "495",
  "content-type": "application/json",
  "cookie": "ua-tracer-trace=0C6zCscF",
  "dnt": "1",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4, i",
  "referer": "https://uatracer.com/?utm_source=stefanjudis&utm_medium=email&utm_campaign=u1f9e2-web-weekly-196-ecmascript-2026-and-wiggly",
  "sec-ch-ua": "\"Not;A=Brand\";v=\"8\", \"Chromium\";v=\"150\", \"Google Chrome\";v=\"150\"",
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  "user-agent": "Mozilla/5.0 (compatible; jscrawler/0.1; +https://github.com/)",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}
2026-08-06 10:48:36.889 UTC +1910546819 ms ES module GET Mozilla/5.0 (compatible; jscrawler/0.1; +https://github.com/)
request headers (9) 
{
  "accept": "*/*",
  "accept-encoding": "gzip,deflate,br",
  "host": "uatracer.com",
  "traceparent": "00-ba81bec70bb2a11b72e4f376f903853d-38455530ee2a57ae-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (compatible; jscrawler/0.1; +https://github.com/)",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-ba81bec70bb2a11b72e4f376f903853d-d8dbd4e997b80b6d-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 4429ms 1185ms
font.woff2 link 4430ms 1328ms
preload.png link 4431ms 2516ms
photo.png img 4431ms 2105ms
main.js script 4431ms 1798ms
module.js script 4432ms 669ms
prefetch.png link 4456ms 3361ms
iframe iframe 4497ms 3294ms
import.css css 5616ms 1735ms
js-ran.gif?t=1784102774805 img 7359ms 1020ms
csp-report beacon 7361ms 2057ms
report beacon 7365ms 2787ms
module-ran.gif?t=1784102774817 img 7367ms 677ms
css-bg.png css 7384ms 1413ms
css-font.woff2 css 7391ms 2423ms