SSR queries databases or APIs when a visitor requests a URL and generates the HTML at that moment. It suits content that changes with every request, including authentication state and live inventory. Search engines receive complete HTML without waiting for client-side JavaScript, providing indexability comparable to SSG. However, CPU demand grows with traffic. Design a caching layer, such as Redis, together with CDN edge caching to manage that load.
Some websites are seeing sharp increases in site: operator queries in Search Console performance reports. Explore possible causes, measurement effects and diagnostic responses.
