ua-tracer by Paul Kinlan

trace lodiO0R6

ua-tracer

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

← all traces

Trace lodiO0R6

First seen: 2026-06-22 12:23:28.488 UTC
User-Agent: facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
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 12:23:28.488 UTC +0 ms homepage GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "deflate, gzip",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "range": "bytes=0-524287",
  "traceparent": "00-f65bae8cf6eb9016e15e6919e299ca7a-18c04fe07b5d00b3-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f65bae8cf6eb9016e15e6919e299ca7a-bae846b6b98f6cac-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:30.662 UTC +2174 ms Open Graph image GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (8) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-05cdaf8bff8391858e21e0e56c4e328e-9ad20c03fad79a89-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-05cdaf8bff8391858e21e0e56c4e328e-084d6129976798b7-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:31.671 UTC +3183 ms image GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (8) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-b3520260fa0461d693e541de7590ad50-4c3165af5a200032-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b3520260fa0461d693e541de7590ad50-f4fffbb707ed339c-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:34.089 UTC +5601 ms image GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (8) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-5bea4faffe4bd036b0d0e085ee93e618-7e35df727ec0033a-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-5bea4faffe4bd036b0d0e085ee93e618-afb78302d27226fa-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-22 12:23:34.119 UTC +5631 ms Open Graph image GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (6) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-571ce6fb247d95efabf8dd455c7eaa10-67e397fc9bc038db-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-06-22 12:23:57.564 UTC +29076 ms image GET facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
request headers (8) 
{
  "accept": "*/*",
  "host": "ua-tracer.paulkinlan-ea.deno.net",
  "traceparent": "00-971398d564b51892dbcf41de86e6e19e-cfc42287850c012a-01",
  "tracestate": "",
  "user-agent": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-971398d564b51892dbcf41de86e6e19e-bb3f181bc41e5d96-01",
  "x-deno-userspace-tracestate": ""
}
2026-06-26 20:31:38.270 UTC +374889782 ms Open Graph image GET meta-webindexer/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)
request headers (8) 
{
  "accept": "*/*",
  "host": "uatracer.com",
  "traceparent": "00-36908bbb137ef1c8b623c634b9e2466d-e12915a2204790a8-01",
  "tracestate": "",
  "user-agent": "meta-webindexer/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-36908bbb137ef1c8b623c634b9e2466d-cd6defe3027b9c3d-01",
  "x-deno-userspace-tracestate": ""
}