Fake Fast Detector icon
Fake Fast Detector icon

Fake Fast Detector

One-click probe that spots edge-cache misses, slow TTFB, cookie-busted HTML, heavy DOM/scripts, LCP laziness, and more—plus JSON export.

Paste a URL, toggle “Edge vs Origin” and “Asset timing,” then hit Probe to get real TTFB, cache status, and a one-line verdict.

Cost / License

  • Free
  • Proprietary

Application type

Platforms

  • Online
Instant readout of TTFB, total time, HTTP version/IP, cacheability, cookies on HTML, DOM size, script counts, and LCP heuristic
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Features

Properties

  1.  Privacy focused

Features

  1.  No registration required
  2.  Ad-free
  3.  No Coding Required
  4.  Website Audit
  5.  Web-Based

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Fake Fast Detector information

AlternativeTo Category

Business & Commerce

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Fake Fast Detector was added to AlternativeTo by Jason Bann on and this page was last updated .
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What is Fake Fast Detector?

Fake Fast Detector exposes sites that look fast in lab tools but feel slow to humans. Enter a URL and hit Probe to see true network-level signals: HTML TTFB and total time, cache headers, cookie on HTML (edge-cache killer), DOM size, external vs inline scripts, first CSS/IMG discovery, and an LCP heuristic (e.g., lazy-loaded hero). If you want, it also compares Edge vs Origin TTFB and pings first CSS/IMG to gauge asset timing. You get a plain-English verdict, a quick checklist to fix, and a downloadable JSON report. No tracking, no sign-up—just honest diagnostics that complement Lighthouse/PSI. Great for CDNs, SEOs, devs, and anyone fighting “fast in slides, slow in life.”

Key features:

  • Edge vs Origin TTFB comparison
  • Detects Set-Cookie on HTML (edge bypass)
  • Cache-policy check (public / s-maxage / max-age)
  • DOM tag and script (ext/inline) counts
  • First CSS & first IMG discovery + TTFB pings
  • LCP laziness heuristic (lazy hero vs prioritized)
  • JSON export & copyable summary
  • No login, ad-free, privacy-friendly
  • Works on any public URL
  • Clear “what to fix first” verdict

Why it’s different

  • Focuses on server/edge reality, not synthetic lab tricks
  • Flags common PSI gaming patterns (cookie on HTML, lazy LCP)
  • Lightweight, instant, link-shareable report