Measure total page weight including all resources.
What is Page Size Checker?
Page Size Checker measures the total weight of any web page including HTML, CSS, JavaScript, images, and fonts. Large pages load slowly and cost mobile users data. This tool shows exactly how heavy your page is.
How to use this tool
Enter the URL to measure.
Click Check to download and measure the page.
Review total page size and individual resource sizes.
Identify the heaviest resources — usually images and JavaScript.
Target under 1MB total for good performance on mobile.
Frequently asked questions
What is a good page size?
Under 1MB is good, under 500KB is excellent. The average web page is 2-3MB which is too heavy. Mobile users on slow connections suffer the most from bloated pages.
What makes pages heavy?
Images are usually the biggest culprit (60-70% of page weight). Unminified JavaScript, web fonts, and third-party scripts add up. Use WebP images, compress assets, and lazy-load below-the-fold content.
Does page size affect SEO?
Indirectly yes. Larger pages load slower, which hurts Core Web Vitals scores. Google prioritizes fast-loading pages, especially on mobile-first indexing.