ua-tracer by Paul Kinlan

ua-tracer

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

← all traces

Trace ulj4K3hn

First seen: 2026-06-26 13:40:13.909 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)

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
2026-06-26 13:40:13.909 UTC +0 ms homepage GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (7) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip,identity",
  "host": "uatracer.com",
  "traceparent": "00-4bb05034765299089b4fd5d004fb9be9-3c6a281ac72c9a6a-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:11.868 UTC +477959 ms Reporting API report (POST) POST Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "cache-control": "max-age=0",
  "content-length": "388",
  "content-type": "application/csp-report",
  "host": "uatracer.com",
  "origin": "null",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-815e8367238a7ee5d33632b0d283238c-a126060d2aca6d72-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-elem\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/ulj4K3hn/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":9,\"columnNumber\":1}}"
}
2026-06-26 13:48:13.558 UTC +479649 ms JS GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-0e0a65611cc730d376809e1eb6e28728-d77f2db945c98fd6-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:15.405 UTC +481496 ms iframe document GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (12) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-03653fa873050f50e6f5b5b939007f7c-128fecb949b20700-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:17.260 UTC +483351 ms ES module GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-876e6310bbac9cfc3eb2d74ef68674a1-e96665fac2dc03de-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:19.094 UTC +485185 ms CSS GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (12) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-b94c6004cfd8dd910789c0aec7876c35-006a56b36ee563b8-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:20.905 UTC +486996 ms Reporting API report (POST) POST Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "cache-control": "max-age=0",
  "content-length": "390",
  "content-type": "application/csp-report",
  "host": "uatracer.com",
  "origin": "null",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-bb26e6e1a5645d1d2d7e747956a7ff1f-883c9ad67edddee0-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/ulj4K3hn/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":213,\"columnNumber\":1}}"
}
2026-06-26 13:48:22.728 UTC +488819 ms Reporting API report (POST) POST Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "cache-control": "max-age=0",
  "content-length": "390",
  "content-type": "application/csp-report",
  "host": "uatracer.com",
  "origin": "null",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-b218486c5fd409ee4baf0b6e4e9ee7d4-463747944676c9dd-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/ulj4K3hn/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":721,\"columnNumber\":1}}"
}
2026-06-26 13:48:24.554 UTC +490645 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (12) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-da0de1261c93eff99831f2b13247014b-8265cf13a233338c-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-26 13:48:26.376 UTC +492467 ms Reporting API report (POST) POST Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "cache-control": "max-age=0",
  "content-length": "412",
  "content-type": "application/csp-report",
  "host": "uatracer.com",
  "origin": "null",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-a08621c2806761ead8b3f365c99ab613-5a2d32928173301b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/ulj4K3hn/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com:443/r/ulj4K3hn/main.js\",\"lineNumber\":45,\"columnNumber\":23}}"
}