ua-tracer by Paul Kinlan

trace 1L3rmJHk

ua-tracer

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

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Trace 1L3rmJHk

First seen: 2026-10-29 22:34:40.326 UTC
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0
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
2026-10-29 22:34:40.326 UTC +0 ms homepage GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0
request headers (10) 
{
  "accept": "text/html,application/xhtml+xml,application/javascript,*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-c19da0a3830ebf8fc4bb6cad60582aa9-edaa7fe0abe333ac-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-c19da0a3830ebf8fc4bb6cad60582aa9-632fd41af22a5acc-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-29 22:34:43.805 UTC +3479 ms JS GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0
request headers (10) 
{
  "accept": "text/html,application/xhtml+xml,application/javascript,*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-9eac759076f615740963e9f1d96e0935-2abfe2e1812fe616-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-9eac759076f615740963e9f1d96e0935-e012ef2643b8799f-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-29 22:34:44.400 UTC +4074 ms ES module GET Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0
request headers (10) 
{
  "accept": "text/html,application/xhtml+xml,application/javascript,*/*",
  "accept-encoding": "gzip, deflate",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "traceparent": "00-e279e82c8842019ae3fa1ce9f5646bf9-a53e45edff2409c3-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) SupaGuard/13.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-e279e82c8842019ae3fa1ce9f5646bf9-7f0d1a762b3ebe4c-01",
  "x-deno-userspace-tracestate": ""
}