Tests every page via the PageSpeed Insights API and verifies 100/100 across Performance, Accessibility, Best Practices and SEO for both mobile and desktop.
Note: This tool requires a Google PageSpeed Insights API key. Get one free at
Google PSI API docs.
Enter your key below. Without a key, the tool will run a local heuristic check based on the HTML structure.
Summary
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Enter API key and click "Run All Tests" or use Local Heuristic Check.
How the final ZIP is pre-optimized for 100/100
CSS minified and preloaded inline for critical above-fold content
JS deferred with defer attribute
Hero image preloaded with <link rel="preload">
All images have explicit width/height attributes (prevents CLS)
All images use loading="lazy" except hero
Fonts preconnected via preconnect hint
GZIP enabled via .htaccess
Browser caching set to 1 month for static assets
Meta theme-color, viewport, charset all set
ARIA labels on all interactive elements
Semantic HTML5 tags throughout
Color contrast meets WCAG AA standard
Auto-fix Opportunities
If any page scores below 100, the following optimizations are applied automatically by editing the source HTML: