Page Size Checker
Free page size checker — measure a page's HTML weight and count its images, scripts and stylesheets to estimate total page size and find bloat.
About the Page Size Checker
Page weight directly affects load time, bounce rate and Core Web Vitals. This free page size checker fetches any public page server-side, measures the raw HTML in bytes, and scans the markup to count every referenced resource — images, scripts, stylesheets and inline blocks — so you can see at a glance whether a page is lean or bloated.
You get the HTML document size, a breakdown of how many images, external scripts and CSS files the page pulls in, and a rough estimate of overall page weight. Heavy pages with dozens of scripts and uncompressed images are the usual culprits behind slow first paint, and this tool surfaces them instantly.
Because the exact byte size of every image and script would require downloading them all, the tool focuses on the HTML weight and resource counts, which are the fastest, most reliable signals of page bloat. Use it to compare pages, track a redesign, or benchmark against competitors.
How to Use the Page Size Checker
- 1Enter the page URL you want to measure.
- 2Click Check page size to fetch the HTML server-side.
- 3Review the HTML byte size and the counts of images, scripts and stylesheets.
- 4Trim heavy resources and re-check to confirm the page is lighter.
Frequently Asked Questions
What is a good page size?
There is no hard limit, but fast pages usually keep total transferred weight under about 1–2 MB, with the HTML document itself well under 100 KB. Pages above 3–4 MB — often bloated by large images and many scripts — tend to load slowly on mobile and hurt Core Web Vitals scores.
Does page size affect SEO?
Indirectly but significantly. Google uses page experience signals including loading speed (Largest Contentful Paint), and heavier pages are slower, especially on mobile networks. Lighter pages load faster, keep visitors engaged, and give Google's crawlers less to download, so trimming page weight helps both rankings and conversions.
Why does the tool count resources instead of downloading them all?
Fetching every image, script and font to weigh them exactly would be slow and bandwidth-heavy for a free client-side tool. Counting the resources a page references, alongside the measured HTML size, gives you a fast and reliable picture of bloat — a page pulling in 60 scripts and 40 images is heavy regardless of exact bytes.
How can I reduce my page size?
Compress and lazy-load images (use WebP or AVIF), remove unused CSS and JavaScript, combine and minify files, defer non-critical scripts, and limit third-party widgets. Each removed script and shrunk image cuts weight and speeds up rendering.
What counts toward total page weight?
Everything the browser downloads to render the page: the HTML document, CSS stylesheets, JavaScript, images, fonts, and any third-party embeds. Images and scripts are usually the largest contributors, which is why this tool highlights their counts.