ua-tracer by Paul Kinlan

trace ZcP6s7WP

ua-tracer

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

← all traces

Trace ZcP6s7WP

First seen: 2026-07-09 19:37:31.000 UTC
User-Agent: Twitterbot/1.0
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
2026-07-09 19:37:31.000 UTC +0 ms homepage GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-acf927af8def8b8a1a793086c6c85654-d319f2a4ec4daff2-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "7713aacb39a0ed24",
  "x-b3-sampled": "false",
  "x-b3-spanid": "7e6d66141ef0805d",
  "x-b3-traceid": "0000000000000000013ba6148fbe4f49"
}
2026-07-09 19:37:32.631 UTC +1631 ms Twitter card image GET Twitterbot/1.0
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-0ca8bb2bf872f8e68bba8b98f23402dd-7e101a6d60f995b6-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "c33f038482d0ca7d",
  "x-b3-sampled": "false",
  "x-b3-spanid": "2a59a7ddf9e733ab",
  "x-b3-traceid": "0000000000000000013ba6148fbe4f49",
  "x-deno-userspace-traceparent": "00-0ca8bb2bf872f8e68bba8b98f23402dd-751b052e8b77fe12-01",
  "x-deno-userspace-tracestate": ""
}
2026-07-09 19:37:32.634 UTC +1634 ms Open Graph image GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-dcc1d514b1a696aafa85109948dece1f-c9b54ed7c4e41a01-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "44b811351c2f4f16",
  "x-b3-sampled": "false",
  "x-b3-spanid": "fb9da1a135e2a701",
  "x-b3-traceid": "0000000000000000013ba6148fbe4f49"
}
2026-07-09 21:40:36.194 UTC +7385194 ms Twitter card image GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-c6c6bba7c3582d0fccd6f0f04fb41be9-79e389f4b90432f5-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "0144e545b3dbc360",
  "x-b3-sampled": "false",
  "x-b3-spanid": "a3d48cd623fe3b7f",
  "x-b3-traceid": "0000000000000000715823ff47fe81f9"
}
2026-07-09 22:16:33.918 UTC +9542918 ms Twitter card image GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-b2bef89e0324ec27ffa77da0203dbee3-210292efc4b237b4-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "6a2a8f21198b3e2e",
  "x-b3-sampled": "false",
  "x-b3-spanid": "94c6424da3963e07",
  "x-b3-traceid": "0000000000000000113ff87eaf509326"
}
2026-07-09 23:41:31.448 UTC +14640448 ms Twitter card image GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-2a03eafc54d41db3433776c634504e74-18c9220630e48123-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "5e10cf98947b1fab",
  "x-b3-sampled": "false",
  "x-b3-spanid": "87cc777444a666c4",
  "x-b3-traceid": "000000000000000074407b5fbfbfaab4"
}
2026-07-16 21:59:00.202 UTC +613289202 ms Open Graph image GET Twitterbot/1.0
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate",
  "finagle-ctx-com.twitter.finagle.retries": "0",
  "host": "uatracer.com",
  "traceparent": "00-8f1cee0f80a6c2d14ce32cc263a81079-d922dbff09558437-01",
  "tracestate": "",
  "user-agent": "Twitterbot/1.0",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-b3-flags": "17146314754",
  "x-b3-parentspanid": "bc7bd32538de268f",
  "x-b3-sampled": "false",
  "x-b3-spanid": "1e1fae651c42f448",
  "x-b3-traceid": "0000000000000000f50b41f67ef7bdd3"
}