Technical SEO FAQ · Core Web Vitals, Performance & HTTP
How would you troubleshoot CLS?
Identify which elements shift and why.
Common causes:
- images without dimensions;
- dynamically injected ads;
- late-loading fonts;
- content inserted above existing content;
- UI components changing dimensions.
Use field data and browser performance tooling to identify real-world shifts.
Related questions
- How can third-party scripts affect SEO and performance?
- How do Core Web Vitals influence Technical SEO strategy?
- How do you distinguish lab data from real-user performance data?
- How do you prioritize performance improvements against other SEO work?
- How does image optimization affect crawling, rendering and user experience?
- How should server performance be considered in Technical SEO?
- How would you diagnose poor LCP?
- How would you investigate a sudden deterioration in Core Web Vitals?
- What typically causes poor INP?