Why it matters
A large DOM slows down CSS styling, layout calculations, and JavaScript execution, hurting INP.
How to fix it in WordPress
- Simplify your page layout, especially in page builders.
- Avoid nesting rows within rows excessively.
- Paginate long lists of comments or posts.
Plugin-specific steps
Already using one of these plugins? Follow the exact steps for your setup.
Elementor
- 1Go to Elementor → Settings → Features.
- 2Ensure 'Optimized DOM Output' is active.
- 3Use Flexbox Containers instead of older nested Sections/Columns to reduce wrappers.
How to verify the fix
- Check PageSpeed Insights to see if the DOM size warning is resolved.
