ua-tracer by Paul Kinlan

trace 13pV8pMT

ua-tracer

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

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Trace 13pV8pMT

First seen: 2026-07-24 13:52:53.629 UTC
User-Agent: curl/8.7.1
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
2026-07-24 13:52:53.629 UTC +0 ms homepage GET curl/8.7.1
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "traceparent": "00-47cf80ad80634d5021a96f8637e1ea0b-df31c5c2eca7bc17-01",
  "tracestate": "",
  "true-client-ip": "127.0.0.1",
  "user-agent": "curl/8.7.1",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-azure-clientip": "127.0.0.1",
  "x-azure-socketip": "127.0.0.1",
  "x-client-ip": "127.0.0.1",
  "x-forwarded-for": "127.0.0.1",
  "x-forwared": "127.0.0.1",
  "x-host": "127.0.0.1",
  "x-originating-ip": "127.0.0.1",
  "x-real-ip": "127.0.0.1"
}
2026-07-24 13:53:27.613 UTC +33984 ms JS GET curl/8.7.1
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "traceparent": "00-11a1b655f68d9a3db6f253edc8b1eb97-67f870be6ea6dd6c-01",
  "tracestate": "",
  "true-client-ip": "127.0.0.1",
  "user-agent": "curl/8.7.1",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-azure-clientip": "127.0.0.1",
  "x-azure-socketip": "127.0.0.1",
  "x-client-ip": "127.0.0.1",
  "x-forwarded-for": "127.0.0.1",
  "x-forwared": "127.0.0.1",
  "x-host": "127.0.0.1",
  "x-originating-ip": "127.0.0.1",
  "x-real-ip": "127.0.0.1"
}
2026-07-24 13:53:27.623 UTC +33994 ms ES module GET curl/8.7.1
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "traceparent": "00-80338e481ba226ffffd1c1bccd6daee5-01d7ae49d33b9738-01",
  "tracestate": "",
  "true-client-ip": "127.0.0.1",
  "user-agent": "curl/8.7.1",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-azure-clientip": "127.0.0.1",
  "x-azure-socketip": "127.0.0.1",
  "x-client-ip": "127.0.0.1",
  "x-forwarded-for": "127.0.0.1",
  "x-forwared": "127.0.0.1",
  "x-host": "127.0.0.1",
  "x-originating-ip": "127.0.0.1",
  "x-real-ip": "127.0.0.1"
}
2026-07-24 14:05:40.113 UTC +766484 ms JS GET curl/8.7.1
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "traceparent": "00-3f5ca7e13d4fb1b2a064fddf430bb122-dbbff96f47a9aa2a-01",
  "tracestate": "",
  "true-client-ip": "127.0.0.1",
  "user-agent": "curl/8.7.1",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-azure-clientip": "127.0.0.1",
  "x-azure-socketip": "127.0.0.1",
  "x-client-ip": "127.0.0.1",
  "x-forwarded-for": "127.0.0.1",
  "x-forwared": "127.0.0.1",
  "x-host": "127.0.0.1",
  "x-originating-ip": "127.0.0.1",
  "x-real-ip": "127.0.0.1"
}
2026-07-24 14:05:40.796 UTC +767167 ms ES module GET curl/8.7.1
request headers (17) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "traceparent": "00-9a818ddbae6e5c6623a82af2f57b9d82-c3ca1bbf53506dd4-01",
  "tracestate": "",
  "true-client-ip": "127.0.0.1",
  "user-agent": "curl/8.7.1",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-azure-clientip": "127.0.0.1",
  "x-azure-socketip": "127.0.0.1",
  "x-client-ip": "127.0.0.1",
  "x-forwarded-for": "127.0.0.1",
  "x-forwared": "127.0.0.1",
  "x-host": "127.0.0.1",
  "x-originating-ip": "127.0.0.1",
  "x-real-ip": "127.0.0.1"
}