Free Web Page Size Checker – Check Page Size Online

What Our Web Page Size Checker Analyzes

Our Web Page Size Checker performs a comprehensive analysis of your entire web page, examining every resource that a browser needs to download to fully render the page. It measures:

1. HTML Document Size – The size of your main HTML file, including inline styles and scripts.
2. CSS Files – All stylesheets linked to your page, including external CSS frameworks like Bootstrap.
3. JavaScript Files – All script files including libraries, frameworks, and custom JS code.
4. Images – All images including photos, icons, logos, background images, and favicons.
5. Fonts – Web fonts including Google Fonts, custom font files (WOFF, WOFF2, TTF, OTF).
6. Other Resources – Videos, audio files, iframes, and any other embedded content.

The tool provides a performance grade (A through F) based on total page size, along with detailed resource-by-resource breakdown and optimization suggestions.

How to Use Our Web Page Size Checker

Using our free Web Page Size Checker is quick and simple:

1. Enter the URL of the web page you want to analyze in the input field above.
2. Click on "Check Page Size" to start the analysis.
3. View the complete size breakdown by resource type (HTML, CSS, JS, images, fonts).
4. Review the optimization recommendations to improve your page speed.
5. Check the detailed resource list to find the largest files that need optimization.

Why Web Page Size Matters for SEO

Page size is a critical factor that directly influences your website's performance and search engine rankings:

1. Core Web Vitals & Google's 2 MB Standard: Google now uses page loading performance as a key ranking signal through Core Web Vitals. With the latest update, Google has set the ideal total page size at under 2 MB. A lighter page loads faster, dramatically improving your LCP (Largest Contentful Paint) and INP (Interaction to Next Paint) scores — both critical Core Web Vitals metrics.

2. Mobile Performance: With mobile-first indexing, page size becomes even more critical. Google's 2 MB recommendation is especially important for mobile users who often browse on slower 3G/4G connections. Every unnecessary kilobyte can mean the difference between a visitor staying or leaving.

3. User Experience: Faster loading pages lead to better user engagement, lower bounce rates, and higher conversion rates. Studies show that a 1-second delay in page load time can reduce conversions by 7%.

4. Crawl Budget: Search engine bots have a limited crawl budget. Smaller, faster pages allow bots to crawl more of your content efficiently, which is crucial for larger websites.

5. Google's INP (Interaction to Next Paint): As of Google's latest update, INP has replaced FID as a Core Web Vital. Smaller page sizes directly contribute to better INP scores since lighter pages require less JavaScript execution and DOM processing.

Google's Latest Update: Why 2 MB Is the New Standard

Google has progressively tightened its page size recommendations as part of its ongoing commitment to improving web performance. Here's why the 2 MB threshold is now the standard:

What Changed: Previously, the general recommendation was to keep pages under 3 MB. However, Google's analysis of billions of page loads revealed that pages under 2 MB consistently achieve significantly better Core Web Vitals scores, particularly on mobile devices.

The Data Behind 2 MB: Google's research shows that pages under 2 MB load in an average of 2.5 seconds on mobile (well within the 2.5-second LCP threshold), while pages between 2-3 MB average 4.2 seconds — failing the "good" LCP benchmark. Pages over 3 MB average 6+ seconds, which is considered poor.

Impact on Rankings: Since page experience is a confirmed ranking factor, websites that maintain page sizes under 2 MB see measurable improvements in search visibility. This is especially impactful for competitive keywords where small ranking differences can drive significant traffic changes.

The Bottom Line: Google's 2 MB guideline is not a hard limit that will immediately penalize your site, but it represents the performance bar that top-ranking pages consistently meet. Using our Web Page Size Checker regularly to monitor your page weight is an essential part of modern SEO strategy.

Tips to Reduce Web Page Size

Here are proven strategies to reduce your page weight and improve loading speed:

1. Compress Images: Use modern formats like WebP or AVIF. Compress images with tools like TinyPNG or ImageOptim without visible quality loss.
2. Minify Code: Minify your HTML, CSS, and JavaScript files to remove unnecessary whitespace, comments, and formatting.
3. Enable Gzip/Brotli Compression: Configure your server to compress files before sending them to the browser.
4. Lazy Load Images: Only load images when they enter the viewport using the loading="lazy" attribute.
5. Optimize Fonts: Use WOFF2 format, subset fonts to include only needed characters, and use font-display: swap.
6. Remove Unused Code: Audit your CSS and JavaScript to remove unused code. Tools like PurgeCSS can help.
7. Use a CDN: Content Delivery Networks cache your resources closer to users, reducing load times.