The Page Size Checker is a free online tool that measures the total file size of any webpage in bytes, kilobytes (KB) and megabytes (MB). Page size is a direct factor in page load time — larger pages take longer to download, especially on mobile connections. Google considers page speed a ranking factor, making page weight optimization an important part of technical SEO.

This tool fetches the webpage and calculates the total transfer size including HTML, CSS, JavaScript and inline resources to give you a baseline measurement.

How to Check Page Size

• Enter the URL of the page you want to check
• Click Check Size
• View total page size in bytes/KB/MB
• Compare against recommended targets

Page Size Benchmarks

• Under 500KB — Excellent; fast on all connections
• 500KB–1MB — Good; acceptable for most content pages
• 1–2MB — Large; optimize if possible
• Above 2MB — Very large; significant optimization opportunity

How to Reduce Page Size

• Compress images using our Image Optimizer
• Minify CSS, JavaScript and HTML (see our Minifier tools)
• Enable GZIP compression on your server
• Lazy-load below-the-fold images and videos
• Remove unused scripts and stylesheets

Free, no login required.