ua-tracer by Paul Kinlan

trace W842rfwX

ua-tracer

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

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Trace W842rfwX

First seen: 2026-06-22 12:06:39.927 UTC
User-Agent: Bridgy Fed (https://fed.brid.gy/)
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
2026-06-22 12:06:39.927 UTC +0 ms homepage GET Bridgy Fed (https://fed.brid.gy/)
request headers (12) 
{
  "accept": "application/activity+json, application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\", text/html; charset=utf-8; q=0.5",
  "accept-encoding": "gzip, deflate",
  "connection": "keep-alive",
  "content-type": "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"",
  "date": "Mon, 22 Jun 2026 12:06:39 GMT",
  "digest": "SHA-256=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "signature": "keyId=\"https://fed.brid.gy/fed.brid.gy#key\",algorithm=\"rsa-sha256\",signature=\"gIkfJ0hC2wGvWPFCY5XNWMHslKFVIAJWH09dkrCHADx5ObxTJuPu2JnU/U3gIsO1wdXC88bPfr6nRvct18GmgSKc4E6tRtateOnHa4rq7fBYiBcKZbL52SBfLds/TfIMYedLUdxHM0H10rNvnMI6wK0IHj3LgawabrrqKYwFMnMw1jhAOaNuKJNAUsE/6I4HWrnpE4UtwHY0cBfam34tl7wAkzOCtPtWWt9lk93wuw7Tud47bdaI7CnXQNQ9Pge03gm9hk8rJi9aZWkbPFNg1K+4MjLuJqwqOOE9jQvlOEK0wkO3R/U7IPHg2jMvE8K0/PtAm+IW9c7ZI6581Wq5Ug==\",headers=\"date host digest (request-target)\"",
  "traceparent": "00-0a60864d01ef43f26a7fd5b4283dbc54-dfa818c10f565d05-01",
  "tracestate": "",
  "user-agent": "Bridgy Fed (https://fed.brid.gy/)",
  "via": "HTTP/1.1 ams.vultr.prod.deno-cluster.net"
}