Page Size Checker
Check the HTML page size of any website. See resource counts for CSS, JS and images with a performance grade.
Free Page Size Checker — Analyze Web Page Weight
Page weight is one of the most direct factors affecting page load speed. A page with a large HTML file size and many external CSS, JavaScript, and image resources takes longer to download and render. This free Page Size Checker measures the HTML size of any URL, counts external resource files, and gives a performance grade to help you identify bloat.
Enter any URL to see its HTML file size, number of external CSS stylesheets, number of JavaScript files, image count, and an overall size performance grade. Use this data to identify pages that are too heavy and need optimization.
Page size directly correlates with load time and Core Web Vitals scores. Reducing page weight is often the fastest way to improve LCP and overall PageSpeed performance.
Why Page Size Matters for SEO
Faster load times. Smaller pages download faster. Every 100ms of improvement in load time measurably reduces bounce rate and increases conversions.
Core Web Vitals. LCP (Largest Contentful Paint) is directly affected by how large and how many resources need to download before the page is visible. Heavy pages score poorly on LCP.
Crawl budget efficiency. Googlebot has a limited crawl budget per site per day. Large pages take longer to crawl, consuming more budget and potentially leaving other pages uncrawled.
Mobile performance. Mobile users on slower connections are disproportionately affected by large page sizes. Google primarily uses mobile page experience for ranking.
How to Reduce Page Size
Compress images. Images are typically 60–80% of total page weight. Use WebP format, resize images to their display dimensions, and compress them before upload.
Minify CSS and JavaScript. Remove whitespace, comments, and redundant code. Use our CSS Minifier to reduce stylesheet size.
Enable Gzip compression. Compresses HTML, CSS, and JS files by 60–80% in transfer size. Use our Gzip Compression Checker to verify it is enabled.
Remove unused scripts. Third-party scripts (chat widgets, analytics, ad networks) add significant weight. Audit and remove scripts that are not essential.
Reduce HTML bloat. Deeply nested HTML structures, inline styles, and redundant elements increase HTML file size unnecessarily.
Related Tools
- Page Speed Checker – Full performance audit with Core Web Vitals.
- Gzip Compression Checker – Verify server compression.
- Code to Text Ratio Checker – Analyze content density vs code.
Frequently Asked Questions
What is the ideal page size?
HTML under 100KB, total page weight under 3MB. Lighter is always better for performance.
Does page size affect rankings?
Yes indirectly. Large pages load slower, hurting Core Web Vitals and bounce rates.
How do I reduce page size?
Compress images, minify CSS and JS, enable server compression, and remove unused scripts.
Is this tool free?
Yes. Completely free, no account needed.