ua-tracer
by Paul Kinlan
trace inDXP9b4
what does a user agent actually fetch, follow & run?
Trace inDXP9b4
First seen: 2026-10-26 23:18:29.659 UTC
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
Bot verification: ✓ verified GPTBot IP in GPTBot 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 |
|---|---|---|---|---|
| 2026-10-26 23:18:29.659 UTC | +0 ms | homepage | 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,deflate,br",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://wisp.dalamb.me",
"traceparent": "00-693417ebca33257dca561ba413e0e269-860af7c5daca608e-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": "00-693417ebca33257dca561ba413e0e269-3fa0e26e529ebbac-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:18:38.475 UTC | +8816 ms | font (HTML) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-8685c6af622c2c2ca5780ce3603a20ec-5a56589ddda14023-01",
"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": "00-8685c6af622c2c2ca5780ce3603a20ec-5a9a8f49a5fe67db-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:18:42.179 UTC | +12520 ms | CSS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-2755bf8ff038f3cd257da449eccbedcf-c1422e8e2f091dd9-01",
"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": "00-2755bf8ff038f3cd257da449eccbedcf-de378b8c55bfbc25-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:18:43.279 UTC | +13620 ms | image | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-7570673900c29e0b32e9494f40b71d99-b1cae387ca24128a-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": "00-7570673900c29e0b32e9494f40b71d99-ba5f343c3929ce85-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:29.538 UTC | +59879 ms | apple-touch-icon | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-3c9dc2be09161370a2fadc82342117d8-b5b2ce760058d07c-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": "00-3c9dc2be09161370a2fadc82342117d8-aa50612723ff58f2-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:43.495 UTC | +73836 ms | ES module | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-be07fb4b9573198f9d79b527978d6cad-a08cd8f9e27661b3-01",
"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-be07fb4b9573198f9d79b527978d6cad-46efb66c151a0233-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:54.511 UTC | +84852 ms | prefetch | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-bc9b167c50b7a4799a2682818cae478c-d2ae318cc84e79c5-01",
"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-bc9b167c50b7a4799a2682818cae478c-4fb58ddaa04005fd-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:57.035 UTC | +87376 ms | favicon | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-b363cf8e10a3222a04d834adfc035d19-5e6d9eb771eb50b8-01",
"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-b363cf8e10a3222a04d834adfc035d19-9fb20af890abfb56-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:57.537 UTC | +87878 ms | preload (image) | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-7df2bcc53d9c889f0c818143d85ceb33-180534a8febbb2df-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": "00-7df2bcc53d9c889f0c818143d85ceb33-23f5fb14b47a7d1d-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:58.521 UTC | +88862 ms | JS | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-d44eb85be32cc9f2960b9fc6d11353c3-df1c7b90179525a1-01",
"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-d44eb85be32cc9f2960b9fc6d11353c3-70a0ae9dff6feabe-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:59.017 UTC | +89358 ms | iframe document | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-00af6e8c1df66050950b498c82a89873-cbd6e17d63644098-01",
"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": "00-00af6e8c1df66050950b498c82a89873-b761f010afa457bb-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:19:59.499 UTC | +89840 ms | web app manifest | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"traceparent": "00-5f48ec4386d8663024a44567f9c5bce8-368663b76e4bc1a0-01",
"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": "00-5f48ec4386d8663024a44567f9c5bce8-80fd7ce139fb94e8-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:20:24.654 UTC | +114995 ms | image inside iframe | GET | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip,deflate,br",
"cookie": "[redacted]",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/inDXP9b4/aD7mKllV/iframe",
"traceparent": "00-ccf34f7e0e27836e958f33749a9ba84c-7049d694fce268cb-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-ccf34f7e0e27836e958f33749a9ba84c-62c8b483d381ba04-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:24:32.807 UTC | +363148 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,deflate,br",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/inDXP9b4/aD7mKllV/style.css",
"traceparent": "00-46608eb5ea852bd495ff3ae0803c181f-774cc65f1a1a216c-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": "00-46608eb5ea852bd495ff3ae0803c181f-ac29f6a8b59d60b2-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:24:33.203 UTC | +363544 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,deflate,br",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/inDXP9b4/aD7mKllV/style.css",
"traceparent": "00-a0b4fb8db50c5d9f37048c78bc57640f-cba5a511ee916419-01",
"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-a0b4fb8db50c5d9f37048c78bc57640f-0e45bb1a48907993-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-26 23:24:59.360 UTC | +389701 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,deflate,br",
"from": "gptbot(at)openai.com",
"host": "uatracer.com",
"referer": "https://uatracer.com/r/inDXP9b4/aD7mKllV/style.css",
"traceparent": "00-49213292b5d89b9dec57a1d6ba1472e4-a8148104cb18245f-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": "00-49213292b5d89b9dec57a1d6ba1472e4-fd35ae32d62c4670-01",
"x-deno-userspace-tracestate": "",
"x-openai-host-hash": "383938406"
}
|
||||
| 2026-10-29 05:28:22.095 UTC | +194992436 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 (9){
"accept-encoding": "gzip,deflate",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-6cb45a3d970d733a1051f68f64929678-b438ae6d616e9cfd-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",
"x-deno-userspace-traceparent": "00-6cb45a3d970d733a1051f68f64929678-ed533ce659902b63-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-10-29 05:28:24.723 UTC | +194995064 ms | image inside iframe | 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 (9){
"accept-encoding": "gzip,deflate",
"connection": "close",
"host": "uatracer.com",
"traceparent": "00-f6ab44440124e57c98948b84cd8e8ede-5ed74d8a3b8be551-01",
"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",
"x-deno-userspace-traceparent": "00-f6ab44440124e57c98948b84cd8e8ede-6c1aedba6e30f4fd-01",
"x-deno-userspace-tracestate": ""
}
|
||||