How to Improve Blogger Website Performance with Practical HTML and CSS Optimizations

To enhance the performance of a Blogger website, focus on HTML and CSS optimizations. Begin by measuring current performance with Google PageSpeed Insights, targeting Core Web Vitals such as Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS). Establishing a baseline helps identify effective optimizations.

Ensure images are responsive by setting max-width to 100% and height to auto, preventing them from exceeding their container. This maintains aspect ratio and aids faster content display. For images below the initial viewport, consider lazy loading, which defers their loading until needed, but avoid using it for crucial images that impact LCP.

Minimize unused CSS and JavaScript by reviewing your template for redundant scripts and styles. Remove unnecessary components carefully, as some may provide essential features. For external scripts, defer their execution until HTML parsing is complete using the defer attribute. Avoid cluttering your template with third-party scripts solely for decorative purposes.

Employ semantic HTML to improve page interpretation by browsers, assistive technologies, and search engines. Structure your article with a main container, article, header, h1, paragraphs, sections for specific topics, and ensure the structure aligns with semantic standards. While optimizing fonts, consider system font stacks instead of multiple custom typefaces to reduce page weight.

Ultimately, these optimizations can improve a Blogger website's performance without the need to overhaul the entire template. Measure progress after implementing changes to verify their effectiveness.