ua-tracer
by Paul Kinlan
trace GV40crNI
what does a user agent actually fetch, follow & run?
Trace GV40crNI
First seen: 2026-07-18 19:03:24.368 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 |
|---|---|---|---|---|
| 2026-07-18 19:03:24.368 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 (9){
"accept": "*/*",
"accept-encoding": "gzip, br, deflate",
"from": "oai-searchbot(at)openai.com",
"host": "uatracer.com",
"traceparent": "00-fe8b64ae01f4eb6bf2f8c86e67f3a164-098f197e36a81917-01",
"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-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:47.576 UTC | +23208 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": "00-1c6b54be6837e7402009b42031e088cf-94376377e1072ed0-01",
"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": "00-1c6b54be6837e7402009b42031e088cf-36f933e7c943cb14-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:48.550 UTC | +24182 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": "00-67fe0bcfd45efdd493693b9e96ad58f9-55ed76e3c8b1c7be-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": "00-67fe0bcfd45efdd493693b9e96ad58f9-4548c0edeae1e6d3-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:49.404 UTC | +25036 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": "00-070dc5dd7acd895792f3eb938bff0763-f42d1f3b9a3517fe-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": "00-070dc5dd7acd895792f3eb938bff0763-49285015c460430a-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:50.189 UTC | +25821 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": "00-24e247404c05c7870e0e3ea77996e6cc-2437b4a0cdd84619-01",
"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": "00-24e247404c05c7870e0e3ea77996e6cc-27e8f0dc838d7067-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:51.559 UTC | +27191 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-f42a50025fa04b82c9207ccc242c3f6f-9f5b18673a659a23-01",
"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-f42a50025fa04b82c9207ccc242c3f6f-99608f5d54621f5e-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:54.756 UTC | +30388 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": "00-654a722cf8e7266bbd1af6b8dabce7fb-f1e6431d6ed5102e-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": "00-654a722cf8e7266bbd1af6b8dabce7fb-1f35f5df0209aba0-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:03:55.260 UTC | +30892 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": "00-6093a50bb2417bdf60101c15afc9b13a-074300a13e78033c-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": "00-6093a50bb2417bdf60101c15afc9b13a-225a72f9d2887911-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:00.086 UTC | +35718 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-e987ab8160b0541cf5186d186724a935-259d06ca5814de68-01",
"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-e987ab8160b0541cf5186d186724a935-9bf235aa281ae498-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:00.983 UTC | +36615 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": "00-256f3cbae5a453fe3011a3640b9c0c03-019a3fc0f6005c2a-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": "00-256f3cbae5a453fe3011a3640b9c0c03-183e29702d20315e-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:06.225 UTC | +41857 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/GV40crNI/ZOTy24jq/iframe",
"traceparent": "00-5a2c2c00c27be7c88b634555606ed88d-99ba9471f1cf1736-01",
"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": "00-5a2c2c00c27be7c88b634555606ed88d-bdb9a51618dd2413-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:24.051 UTC | +59683 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": "00-2cc84cff64d1ff82b61cdf27847a3c0c-6b5fe0b22b2726e7-01",
"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": "00-2cc84cff64d1ff82b61cdf27847a3c0c-de67faae93db1da1-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:24.597 UTC | +60229 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-b3f668ed9b1ab108cf2e60b9a9ecb808-ac58d667970bf5b7-01",
"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-b3f668ed9b1ab108cf2e60b9a9ecb808-f4d77af908b6d204-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:34.930 UTC | +70562 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/GV40crNI/ZOTy24jq/style.css",
"traceparent": "00-d98f8cc4cd226b969e9d15ab6905feb5-a642a0249fd979b1-01",
"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-d98f8cc4cd226b969e9d15ab6905feb5-76ec287806f3dc00-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:35.466 UTC | +71098 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/GV40crNI/ZOTy24jq/style.css",
"traceparent": "00-c0e0219f7d3f1a3104c12b0cb15b121c-735faffb96992ed2-01",
"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-c0e0219f7d3f1a3104c12b0cb15b121c-ae1fec812b6b5181-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-07-18 19:04:35.980 UTC | +71612 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/GV40crNI/ZOTy24jq/style.css",
"traceparent": "00-f96dcd5b262be7e275c1da3722f81679-d9ef8c7662b1b67c-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-f96dcd5b262be7e275c1da3722f81679-4a7a2af001e29b1d-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||