Website page size checker

Free Website Page Size Checker — Measure Total Page Weight

This tool measures the total size of a web page including all its resources — HTML, CSS, JavaScript, images, fonts and more. Enter any URL and you see exactly how many kilobytes (or megabytes) a visitor has to download to load the page, broken down so you know where the weight is.

Page weight is one of the most direct levers on load speed, and load speed feeds straight into Core Web Vitals, bounce rate and conversions. Heavy pages punish exactly the users you can least afford to lose: people on mobile data, slower connections and older devices. As a rough benchmark, a lean page sits well under 1–2MB, while bloated pages routinely hit 5MB or more — almost always because of unoptimized images and oversized JavaScript bundles.

Use this tool to find out whether a page is too heavy, to identify which resource type is dominating the total (images are the usual culprit at 60–80% of weight), and to confirm that compressing images, minifying code or removing unused scripts actually reduced the payload. If your speed scores are poor, total page size is one of the first numbers to check — and one of the most fixable.

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This tool checks one thing. Smart SEO Audit checks 50+ — technical, on-page, content and speed — on any URL in under 10 seconds, with an AI-prioritized fix list, scheduled monitoring and Swiss, GDPR-compliant hosting. Start free — 5 full audits a month, no credit card.