PageSpeed
- Preconnect to Required Origins
- Enable Text Compression
- Minify CSS (PageSpeed)
- Minify JavaScript (PageSpeed)
- Does not use passive listeners to improve scrolling performance
- Avoid Document write
- Avoid chaining critical requests
- Keep request counts low and transfer sizes small
- Avoid Multiple Page Redirects
- Avoid serving legacy JavaScript to modern browsers
- Lazy load third-party resources with facades
- Image elements do not have explicit width and height
- Use HTTP/2
- Preload Largest Contentful Paint image
- Reduce Unused CSS recommendation is still present on PageSpeed Insight