ua-tracer by Paul Kinlan

trace NcyCwwJf

ua-tracer

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

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Trace NcyCwwJf

First seen: 2026-06-22 12:02:55.939 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)
Bot verification: ✓ verified Applebot IP checked against published bot CIDR ranges; IP in Applebot published range.

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
2026-06-22 12:02:55.939 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 (9) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip,identity",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-70cacf496d5c80ca94b1037b9e873ec1-655677d1dbf6c1c9-01",
  "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-deno-userspace-traceparent": "00-70cacf496d5c80ca94b1037b9e873ec1-7ef77389f9e9a39d-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:04.525 UTC +1208586 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 (14) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "referer": "https://ua-tracer.paulkinlan-ea.deno.net/",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-0857aa79d356f2c174f91909912b64ec-5103a47901498a40-01",
  "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-deno-userspace-traceparent": "00-0857aa79d356f2c174f91909912b64ec-cfbe5c0767339ee3-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:05.684 UTC +1209745 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 (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "referer": "https://ua-tracer.paulkinlan-ea.deno.net/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-9fbccb4d72c3f6ae27668173742d9938-1366bde19fbb5814-01",
  "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-deno-userspace-traceparent": "00-9fbccb4d72c3f6ae27668173742d9938-4cfb10f038e24c92-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:07.088 UTC +1211149 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 (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US,en;q=0.90",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "origin": "https://ua-tracer.paulkinlan-ea.deno.net",
  "referer": "https://ua-tracer.paulkinlan-ea.deno.net/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "traceparent": "00-1fed51b2f0fd10b0247a5c6b590104c6-a44e37450882a5bc-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-deno-userspace-traceparent": "00-1fed51b2f0fd10b0247a5c6b590104c6-c031db775cdd3531-01",
  "x-deno-userspace-tracestate": ""
}