Checklist helps you launch website faster and avoid 99% mistakes upfront
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Performance Checklist for Google Sites
Goal: Make your website fast and responsive with optimal Core Web Vitals scores
Core Web Vitals
โ Test your site with PageSpeed InsightsVisit pagespeed.web.dev โ and enter your URL to check LCP, INP, and CLS scores โ Largest Contentful Paint (LCP) is under 2.5 secondsYour main content loads quickly - optimize images and reduce server response time โ Interaction to Next Paint (INP) is under 200msPage responds quickly to clicks and taps - minimize JavaScript execution time โ Cumulative Layout Shift (CLS) is under 0.1Content doesn't jump around while loading - set image dimensions and avoid ads that push content
Images & Media
โ Images are compressed and optimizedUse JPG format when possible, compress images to under 100KB each
Content Loading
โ Keep initial content concise and focusedHeavy text blocks can slow down initial page render - break up long content โ Minimize heavy embeds on initial page loadYouTube videos, maps, and social media embeds can slow page loading
Site Structure
โ Each page is under 3MB total sizeLarge pages take longer to load - split content across multiple pages if needed โ Site performs well on mobile devicesTest on actual mobile devices or use PageSpeed Insights mobile test
Advanced Optimization
โ Minimize third-party scripts and widgetsEach external script (analytics, chat widgets) adds loading time โ Regularly monitor site performanceCheck PageSpeed Insights monthly and after major content updates