PageSpeed
- Google PageSpeed grade does not improve
- 3rd parties
- Reduce the impact of third party code
- Image elements do not have explicit width and height
- Optimize viewport for mobile
- Layout shift culprits
- Avoid an excessive DOM size
- How to improve your mobile PageSpeed score
- Network dependency tree
- Use HTTP/2
- Forced reflow
- LCP breakdown
- Font display
- Optimize DOM size
- Avoid serving legacy JavaScript to modern browsers
- Legacy JavaScript
- Duplicated JavaScript
- Use efficient cache lifetimes
- Reduce initial server response time
- Avoid multiple page redirects