ua-tracer by Paul Kinlan

trace xbmtetyg

ua-tracer

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

← all traces

Trace xbmtetyg

First seen: 2026-10-18 20:38:26.167 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.

ReceivedΔKindMethodUser-Agent
2026-10-18 20:38:26.167 UTC +0 ms homepage GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.4; +https://openai.com/gptbot)
request headers (11) 
{
  "accept": "*/*",
  "accept-encoding": "gzip,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "traceparent": "00-9938ab4cbf71ed620805c2a9dd5f7b27-acda809e2651d90b-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": "00-9938ab4cbf71ed620805c2a9dd5f7b27-5db2e4ea7aeebe69-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:38:36.168 UTC +10001 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-acdd0325e8e1396a3bbfd9384935c8b7-da701a83b1e4b9a7-01",
  "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-acdd0325e8e1396a3bbfd9384935c8b7-191631c8ae39dd7e-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:42:58.067 UTC +271900 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": "00-7f17d9d725c1524d2df06bfb1c04a2d1-fa060ef62303e0e0-01",
  "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": "00-7f17d9d725c1524d2df06bfb1c04a2d1-d37177aeac52aa00-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:45:06.069 UTC +399902 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-46c226b4c8f6e9d7197d4819937d93ba-1c668e75817d8a05-01",
  "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": "00-46c226b4c8f6e9d7197d4819937d93ba-535d6bc611fb6ca5-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:45:19.209 UTC +413042 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-5df95ceea8a1765c85d5c90661f6d1ab-b1f3fea6c080ee7f-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": "00-5df95ceea8a1765c85d5c90661f6d1ab-7421bafba269e08e-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:45:34.693 UTC +428526 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-9b1c58422cadf4b21b68c097a7e8d47b-3e996aca2a978979-01",
  "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": "00-9b1c58422cadf4b21b68c097a7e8d47b-2b7db2241df4db08-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:45:37.263 UTC +431096 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-88b807542a53ea7f0b8b419eaf81c259-ce1c7471422d3e33-01",
  "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": "00-88b807542a53ea7f0b8b419eaf81c259-5d1f4cd2d7d431c6-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:46:26.191 UTC +480024 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-3a5c9110da777e1bc3b95856fbe72237-100c6b30d44d0a04-01",
  "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": "00-3a5c9110da777e1bc3b95856fbe72237-be6b01832f59ebdb-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:46:28.220 UTC +482053 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-bc1ba58fabe0b6d242fd4e161d9466c3-aec627a829f60074-01",
  "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-bc1ba58fabe0b6d242fd4e161d9466c3-25710ea05e1ff7e7-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:46:40.220 UTC +494053 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/r/xbmtetyg/vvpTn3rX/iframe",
  "traceparent": "00-6204b1aeb9c79af20ea6f6487e8ecaf0-70730aedc78a9b4b-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": "00-6204b1aeb9c79af20ea6f6487e8ecaf0-70bf9d65547d7c88-01",
  "x-deno-userspace-tracestate": "",
  "x-openai-host-hash": "383938406"
}
2026-10-18 20:46:43.713 UTC +497546 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-f7110fd4a25da62335dc4821926c8ab9-49d2b8b2cfa24603-01",
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  "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-f7110fd4a25da62335dc4821926c8ab9-d83b911fb254ec28-01",
  "x-deno-userspace-tracestate": "",
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}
2026-10-18 21:52:11.268 UTC +4425101 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-f73284ce1e8b393cfbd26835f90445ae-d948d99c051aa169-01",
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  "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",
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}
2026-10-18 21:53:28.273 UTC +4502106 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,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
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  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-866d6c139796d063153a62b00b12b266-624d61d2b4695632-01",
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}
2026-10-18 21:53:58.333 UTC +4532166 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",
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  "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",
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}
2026-10-18 21:53:58.809 UTC +4532642 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) 
{
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  "accept-encoding": "gzip,deflate,br",
  "from": "gptbot(at)openai.com",
  "host": "uatracer.com",
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2026-10-18 21:53:59.286 UTC +4533119 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) 
{
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  "host": "uatracer.com",
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2026-10-25 08:54:38.640 UTC +562572473 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) 
{
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2026-10-25 08:54:40.442 UTC +562574275 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) 
{
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2026-10-27 03:42:57.377 UTC +716671210 ms iframe document GET Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Reflectionbot/1.0; +https://reflection.ai/bot) Chrome/151.0.0.0 Safari/537.36
request headers (13) 
{
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  "accept-encoding": "gzip,deflate,br",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
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  "sec-fetch-user": "?1",
  "traceparent": "00-0d4cbe1588014170004a48e678834ee2-d96ee207e3925bfc-01",
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}