Page Size Calculator
Calculate your page's total size, minified size & gzip estimates. Paste HTML, CSS, and JS to get optimization suggestions for faster loading.
Page Content
Size Analysis
💡 Why Size Matters
Page Weight & Performance
- Larger pages take longer to download, especially on mobile networks.
- Google uses page speed as a ranking factor for both mobile and desktop.
- Core Web Vitals (LCP, FID, CLS) are directly impacted by page weight.
- Ideal total page weight: under 500KB for fast loading.
📖 Optimization Tips
Reduce Page Size
- Minify HTML, CSS, and JavaScript to remove whitespace and comments.
- Enable Gzip/Brotli compression on your web server.
- Compress and properly size images — they're usually the biggest files.
- Remove unused CSS and JavaScript code.
🎯 Size Benchmarks
Target Sizes
- HTML: Under 100KB for most pages.
- CSS: Under 50KB total (minified + gzipped).
- JavaScript: Under 200KB total (minified + gzipped).
- Total page: Under 500KB for good Core Web Vitals.