ua-tracer by Paul Kinlan

ua-tracer

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

← all traces

Trace jWnv6saB

First seen: 2026-06-25 12:24:09.809 UTC
User-Agent: Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36

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
2026-06-25 12:24:09.809 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 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",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "none",
  "sec-fetch-user": "?1",
  "traceparent": "00-872713378f525cb8ef55e8b8711352e7-8b13e1db82a5fd93-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:10.799 UTC +990 ms CSS GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (17) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-12f71fdd60c2aa0d563d332c4852e0f2-5d41958d1a815834-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:10.803 UTC +994 ms font (HTML) GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-395618bc21462f2103decb76d7ea34a4-ddfb90200f53aaf0-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:10.813 UTC +1004 ms JS GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-ab9de3f041a7214259e2e622e9665f52-f2db910f35944ba8-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:10.842 UTC +1033 ms ES module GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=1",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-d31ac9e26cdd6453086d996769b4163c-0b81fa5cdc9b65a5-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:11.414 UTC +1605 ms iframe document GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 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",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0, i",
  "referer": "https://uatracer.com/",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-983e29e5486cb603690f922c7b666242-171aaa178c2e8d04-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:11.603 UTC +1794 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (17) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/jWnv6saB/style.css",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-e53c827c55cf78e24b2af400b4c7a0e1-07ca6be88cccb84e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-25 12:24:12.680 UTC +2871 ms CSS @font-face GET Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "cache-control": "no-cache",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "pragma": "no-cache",
  "priority": "u=0",
  "referer": "https://uatracer.com/r/jWnv6saB/style.css",
  "sec-ch-ua": "\"Chromium\";v=\"136\", \"HeadlessChrome\";v=\"136\", \"Not.A/Brand\";v=\"99\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"Windows\"",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-be97a526534364d2b3984f11ca6e0d70-c7c9eb60770ab1b6-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.166 Safari/537.36",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}