ua-tracer by Paul Kinlan

trace nIaFh7Ub

ua-tracer

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

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Trace nIaFh7Ub

First seen: 2026-09-06 14:44:06.147 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36
Bot verification: Not a known bot (no IP-range check applies).

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
2026-09-06 14:44:06.147 UTC +0 ms homepage GET Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36
request headers (17) 
{
  "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, zstd",
  "accept-language": "en-US,en;q=0.9",
  "host": "uatracer.com",
  "referer": "https://ilo.im/16e91f",
  "sec-ch-ua": "\"Not=A?Brand\";v=\"99\", \"Google Chrome\";v=\"151\", \"Chromium\";v=\"151\"",
  "sec-ch-ua-mobile": "?0",
  "sec-ch-ua-platform": "\"macOS\"",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "cross-site",
  "sec-fetch-user": "?1",
  "traceparent": "00-3c9e2d178b8b819d742d9947400b89fb-4d1b0667a4bc6a1e-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-09-17 05:51:41.303 UTC +918455156 ms Open Graph image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-5dfff58ea63e1d58883691f7b480f91e-d1434d9cbe38aa9d-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-5dfff58ea63e1d58883691f7b480f91e-282b8a810d08ff1e-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 06:02:50.388 UTC +919124241 ms Open Graph image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-f7b63dc8dfe411488c5877e624d1fabe-a1ebe03902dd92a8-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-f7b63dc8dfe411488c5877e624d1fabe-06da6e54917d16f3-01",
  "x-deno-userspace-tracestate": ""
}
2026-09-17 06:15:11.601 UTC +919865454 ms Open Graph image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-eaf3eea0ef250f958aea332c8097dadc-6f4caad6a42ea70c-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-09-17 06:40:01.655 UTC +921355508 ms Open Graph image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-55e560a2b9b37cd45d3f32ff2c249321-45707d323d79f453-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-09-17 10:21:34.778 UTC +934648631 ms image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (10) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-815b11098d99495b6abaf463d68cc2c4-a45d5f4c913eb241-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
2026-09-17 17:13:36.756 UTC +959370609 ms Twitter card image GET Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)
request headers (12) 
{
  "accept": "*/*",
  "accept-encoding": "gzip",
  "accept-language": "zh,zh-CN;q=0.9",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "document",
  "traceparent": "00-bb01f9d5348441c2d4f5ff29e662e195-42dea7d3bfc8f50d-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; spider-feedback@bytedance.com)",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-bb01f9d5348441c2d4f5ff29e662e195-e96c6b7845a23d47-01",
  "x-deno-userspace-tracestate": ""
}