ua-tracer by Paul Kinlan

trace 2hdBQRx7

ua-tracer

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

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Trace 2hdBQRx7

First seen: 2026-06-22 11:36:56.516 UTC
User-Agent: ClaudeBot/1.0 (live)
Bot verification: ⚠ NOT in ClaudeBot range (spoofed?) IP checked against published bot CIDR ranges; UA claims ClaudeBot but IP not in 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 11:36:56.516 UTC +0 ms homepage GET ClaudeBot/1.0 (live)
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-4f055d03fb0a3968737d55764a9462ed-2522b63d8b4d194f-01",
  "tracestate": "",
  "user-agent": "ClaudeBot/1.0 (live)",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:36:57.164 UTC +648 ms CSS GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-c73c1073459ddef1bcf7a88415199e8d-9e21885bf6f7b0d9-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:36:57.840 UTC +1324 ms CSS background-image GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-438a40ec1e0cd106188da61e8c9cda4c-a494f052060fadff-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:36:58.511 UTC +1995 ms CSS @font-face GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-179cc5f93ae7e6327c03ec52a65d4472-d940409147e2dc84-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:36:59.192 UTC +2676 ms JS GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-05d4aaef6ce1fd106b12d4ba7dc48bfe-5be7f5230dd129f2-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:36:59.864 UTC +3348 ms image GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-61a2461fa2a8510925f04c842fdb7518-89bd7dde0655aa7a-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:37:00.778 UTC +4262 ms JS executed beacon GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-d8564ecce136c88904f5fce360228f2d-5c5687103059a497-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:37:01.456 UTC +4940 ms favicon GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-7c1f1241f82e79565eac9d348b14f010-2333eb56d68bbab7-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:37:02.117 UTC +5601 ms web app manifest GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-9c85850a65be01621205c64e8c5f609a-bbaddb08f1665b0b-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-06-22 11:37:02.792 UTC +6276 ms Open Graph image GET curl/8.20.0
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-f8b5165d9b6908e69769e4a84e42c6df-ee3e9a8bae9dd741-01",
  "tracestate": "",
  "user-agent": "curl/8.20.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}

Client-side resource waterfall

JS executed (beacon hit) but no resource-timing payload was posted (UA may block sendBeacon/fetch or strip the body).