How it works
Check dependencies, errors and content accessibility for visitors and crawlers.
Example
Example: A filter changes a visible list without reloading the page.
Common mistakes
Do not assume every crawler executes JavaScript identically.
How can you check this in practice?
Compare initial HTML with the visible page after JavaScript. Verify that API requests and scripts work without sign-in and that essential content appears without an extra click. Test the rendered result, not merely the empty initial shell.
Distinctions and limitations
CSR does not mean Google can never read the page. It means dependency on successful execution and accessible resources. SSR and CSR can be combined for different parts of one page.
Official sources
Editorial responsibility: Martin Zhelyazkov · Founder of Z-Consult
Updated: 05/11/2026
For a correction or question: office@z-consult.bg