The size of an HTML file exceeds recommended limits, which can result in slower page load times, increased bandwidth usage, and negative impacts on user experience. Large HTML file sizes are often caused by factors such as excessive code, unnecessary elements, inline styles, and redundant markup. We recommend keeping the file size below 0.4MB.
How to fix?
Here are steps to fix HTML file size issues:
Minimize HTML code: Remove unnecessary whitespace, comments, and redundant markup from your HTML files. Minifying HTML code reduces file size by eliminating unnecessary characters without affecting functionality.
Reduce inline styles: Minimize the use of inline styles in your HTML file. Instead, use external CSS files to define styles, which can be cached by browsers for improved performance.
Externalize JavaScript: Move JavaScript code from inline script tags to external JavaScript files. This reduces the size of your HTML file and allows browsers to cache JavaScript files for faster page loading.
Lazy load content: Implement lazy loading for images and other non-critical content to defer loading until it's needed. Lazy loading reduces initial page load times by loading content progressively as users scroll down the page.
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Split large files: If your HTML file is excessively large, consider splitting it into smaller, more manageable files. Use server-side includes or templating systems to assemble multiple HTML files into a single page for rendering.