ua-tracer by Paul Kinlan

ua-tracer

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

← all traces

Trace 48Z32LVd

First seen: 2026-06-29 00:12:04.499 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot

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
2026-06-29 00:12:04.499 UTC +0 ms homepage GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (11) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, br, deflate",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
  "traceparent": "00-662dd8d72ef892b88e1448dda61d782a-1d4ff2ab10d9ff24-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-662dd8d72ef892b88e1448dda61d782a-df549185dc7ed954-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-06-29 00:12:07.517 UTC +3018 ms JS GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, br, deflate",
  "cookie": "ua-tracer-trace=48Z32LVd",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-4fa42ae6c0f958acbab374d73620ccfb-497a583ea238a5b3-01",
  "tracestate": "",
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  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-4fa42ae6c0f958acbab374d73620ccfb-35809799acd2102e-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-06-29 00:12:10.447 UTC +5948 ms favicon GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, br, deflate",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-69150e3bf300b7868e23326cddcfb3ea-9776ac4838d66219-01",
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}
2026-06-29 00:12:12.921 UTC +8422 ms prefetch GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (10) 
{
  "accept": "*/*",
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  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
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2026-06-29 00:12:15.129 UTC +10630 ms CSS GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (13) 
{
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  "cookie": "ua-tracer-trace=48Z32LVd",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
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}
2026-06-29 00:12:17.143 UTC +12644 ms font (HTML) GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (13) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, br, deflate",
  "cookie": "ua-tracer-trace=48Z32LVd",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
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}
2026-06-29 00:12:18.909 UTC +14410 ms iframe document GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, br, deflate",
  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
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2026-06-29 00:12:20.573 UTC +16074 ms preload (image) GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
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  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
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2026-06-29 00:12:22.005 UTC +17506 ms web app manifest GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
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  "from": "oai-searchbot(at)openai.com",
  "host": "uatracer.com",
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2026-06-29 00:12:23.437 UTC +18938 ms ES module GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
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2026-06-29 00:12:24.661 UTC +20162 ms image GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (13) 
{
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2026-06-29 00:12:25.705 UTC +21206 ms apple-touch-icon GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36; compatible; OAI-SearchBot/1.4; +https://openai.com/searchbot
request headers (12) 
{
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2026-06-29 00:12:27.929 UTC +23430 ms font (HTML) GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
{
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2026-06-29 00:12:28.941 UTC +24442 ms iframe document GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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2026-06-29 00:12:30.545 UTC +26046 ms preload (image) GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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2026-06-29 00:12:31.297 UTC +26798 ms image inside iframe GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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2026-06-29 00:12:32.531 UTC +28032 ms ES module GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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2026-06-29 00:12:33.665 UTC +29166 ms apple-touch-icon GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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2026-06-29 00:13:04.312 UTC +59813 ms CSS @font-face GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (12) 
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