ua-tracer by Paul Kinlan

trace 3kc0LMWA

ua-tracer

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

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Trace 3kc0LMWA

First seen: 2026-09-17 06:12:51.694 UTC
User-Agent: Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Bot verification: ✓ verified Googlebot IP checked against published bot CIDR ranges; IP in Googlebot 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
2026-09-17 06:12:51.694 UTC +0 ms homepage GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (13) 
{
  "accept": "text/html,application/xhtml+xml,application/signed-exchange;v=b3,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br",
  "amp-cache-transform": "google;v=\"1..8\"",
  "connection": "keep-alive",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "if-modified-since": "Tue, 15 Sep 2026 01:14:39 GMT",
  "traceparent": "00-5abfc22d42c641d7e887aa8e0009ffe4-632c59db6c8ed531-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-5abfc22d42c641d7e887aa8e0009ffe4-14eb38f4787f6491-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 08:46:47.217 UTC +9235523 ms JS GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-3505f0b93bda9eb044398d8c032e4021-7306529418d8f48e-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-3505f0b93bda9eb044398d8c032e4021-86f219128928054b-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 08:46:47.329 UTC +9235635 ms CSS GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (14) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-1210ca7ae065c34cdc4dfa5f2a2b3fe8-75723f795824252a-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-1210ca7ae065c34cdc4dfa5f2a2b3fe8-05c5db189cd647cc-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 08:46:47.445 UTC +9235751 ms ES module GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (15) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-2c275c520623766ec6ec126050258cb4-415bae63003c0d57-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-2c275c520623766ec6ec126050258cb4-3173a38f7ec007ab-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 08:46:47.657 UTC +9235963 ms iframe document GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (13) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "traceparent": "00-3663d6d203ce05172dfaf3702525788b-5cfa30a958c62b03-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
2026-09-17 08:46:47.869 UTC +9236175 ms prefetch GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (15) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-purpose": "prefetch",
  "traceparent": "00-621d2f158413c67c63cc1fb06d314938-73050b78f7092359-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-621d2f158413c67c63cc1fb06d314938-75c8b535d8bb96ab-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 08:46:48.113 UTC +9236419 ms CSS @import (nested stylesheet) GET Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
request headers (12) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br",
  "accept-language": "en-US",
  "connection": "keep-alive",
  "cookie": "ua-tracer-trace=3kc0LMWA",
  "from": "googlebot(at)googlebot.com",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/r/3kc0LMWA/Qf5ScrZN/style.css",
  "traceparent": "00-fe823fecfdd15956a229d8ea7321a3d3-cd450324293c335b-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.36 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
  "via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}