ua-tracer
by Paul Kinlan
trace AgsqjsBT
what does a user agent actually fetch, follow & run?
Trace AgsqjsBT
First seen: 2026-07-16 18:58:01.849 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
Bot verification: ✓ verified OAI-SearchBot IP checked against published bot CIDR ranges; IP in OAI-SearchBot published range.
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.
| Received | Δ | Kind | Method | User-Agent |
|---|---|---|---|---|
| 2026-07-16 18:58:01.849 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-b1352203a4c7b3324cf0ceae02bebdda-631029087f559a88-01",
"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-b1352203a4c7b3324cf0ceae02bebdda-072667fabe5741e8-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:46.646 UTC | +44797 ms | preload (image) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-b90db28373f002b9e0290dcd7557f6a7-31f0a0d579442992-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-b90db28373f002b9e0290dcd7557f6a7-29c846dba8074989-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:47.181 UTC | +45332 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){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-1aec4ffaa830674845f757da4f36500d-4cf6306b3dca33dd-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-1aec4ffaa830674845f757da4f36500d-15b3692740aef048-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:48.238 UTC | +46389 ms | ES module | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-fcd0dbd743cc32d1ace5492d04cda189-5796f502411c17b6-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-fcd0dbd743cc32d1ace5492d04cda189-a9e41a94f67c6282-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:48.784 UTC | +46935 ms | font (HTML) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-7407361530d0c2f1954a565da7cd3f4f-d0694d171e0feb06-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-7407361530d0c2f1954a565da7cd3f4f-68da702e1c35cdf9-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:49.319 UTC | +47470 ms | favicon | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-c534bb0413aa3b03074adf8281cd3719-275ae4aa588061a5-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-c534bb0413aa3b03074adf8281cd3719-0a3c1510765dd829-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:49.833 UTC | +47984 ms | web app manifest | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-d749c53fc19d9d07e6f74f62e2d48a16-5a08c5ec3ff4d350-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-d749c53fc19d9d07e6f74f62e2d48a16-0dd4e1676a5aff9d-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:50.451 UTC | +48602 ms | prefetch | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-63fea59ab9af419ef875e6bfbc468b6b-42bdffa475941daa-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-63fea59ab9af419ef875e6bfbc468b6b-79a5eb1ad8c86d57-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:50.951 UTC | +49102 ms | iframe document | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-0a0c50d0ead80d91c19b11be000fd161-49a59469998521d7-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-0a0c50d0ead80d91c19b11be000fd161-7891dfc7e88edfef-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:58:52.675 UTC | +50826 ms | JS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-0b72ba96c312566e8dcb90eee287405e-0b18d0aa401f26b5-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-0b72ba96c312566e8dcb90eee287405e-1895b33514247660-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:02.351 UTC | +60502 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){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/AgsqjsBT/D9BwHEcR/iframe",
"traceparent": "00-b71402cda26c0b4e0cf1ad5f5092bd3f-c03adf16ad7d4540-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-b71402cda26c0b4e0cf1ad5f5092bd3f-d117bcb11c69e08c-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:23.819 UTC | +81970 ms | image | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-584e003d8ba2244618010cf7f461b231-47bc40a8e878fcee-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-584e003d8ba2244618010cf7f461b231-1cc4c5df17155cd0-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:24.399 UTC | +82550 ms | CSS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-99448cc07072a07ebaf1d751f4c164f7-2087780dc572b57b-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-99448cc07072a07ebaf1d751f4c164f7-ba00a77316dc8a5f-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:32.803 UTC | +90954 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){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/AgsqjsBT/D9BwHEcR/style.css",
"traceparent": "00-cf7439677d7de7973a1f0e4f2259dc5f-e0a92c3831d15742-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-cf7439677d7de7973a1f0e4f2259dc5f-6c572004a2e5f52d-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:33.315 UTC | +91466 ms | CSS background-image | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/AgsqjsBT/D9BwHEcR/style.css",
"traceparent": "00-00ff840176d8130a0ed1ddde7ee2211c-b2e04a754c8c463f-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-00ff840176d8130a0ed1ddde7ee2211c-ca0aa2c207832931-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-16 18:59:33.823 UTC | +91974 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/AgsqjsBT/D9BwHEcR/style.css",
"traceparent": "00-33e4de5c13ce38b7a192eb7762aa5a20-2086ac7194d10610-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-33e4de5c13ce38b7a192eb7762aa5a20-4e242ffa81e1b52b-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 11:15:27.694 UTC | +145045845 ms | iframe document | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36 |
request headers (7){
"accept-encoding": "gzip,deflate",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-75709244f54e68e3011c1e3f785caa90-326a9351281b0e43-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
|
||||