📦 Page Size Checker & Analyzer
Analyze your page's HTML size and resource breakdown. See images, CSS, JS, inline code, and total asset count at a glance.
Check Page Size
About the Page Size Checker
Page size directly impacts load time, user experience, and SEO rankings. Google uses page speed as a ranking factor, and excessive page weight can hurt your Core Web Vitals scores. This tool gives you a quick snapshot of your HTML size and resource composition.
What Affects Page Size?
- Images — Often the biggest culprit. Use next-gen formats (WebP, AVIF) and lazy loading.
- JavaScript — Too many scripts block rendering. Use defer/async and code splitting.
- CSS — Multiple stylesheets increase HTTP requests. Bundle and minify.
- Fonts — Web fonts can add significant weight. Use font-display: swap.
- Third-party code — Analytics, ads, and embeds add bloat.
Frequently Asked Questions
What counts toward page size?
Page size includes the HTML document itself plus all externally loaded resources: images, CSS, JavaScript, fonts, and other assets. This tool analyzes the HTML and reports on linked resources found in the source.
What is a good page size?
For fast loading, aim for under 1MB total page weight. Google recommends pages load within 2.5 seconds. Smaller pages rank better — every kilobyte matters for SEO and user experience.
Does this tool measure the actual file sizes?
It counts resources referenced in the HTML (images, scripts, stylesheets) and reports HTML document size. For precise individual file sizes, use browser DevTools or a tool like PageSpeed Insights.