Status Codes

An HTML element (rel="canonical") that tells search engines which version of a URL is the primary one, preventing duplicate content issues when multiple URLs serve the same page.

Three Google metrics measuring real-world user experience: Largest Contentful Paint (loading), Interaction to Next Paint (interactivity), and Cumulative Layout Shift (visual stability).

An HTML attribute that tells search engines which language and regional version of a page to show users, essential for multilingual and multi-region sites.

The secure version of HTTP that encrypts data between browser and server. Google uses HTTPS as a ranking signal and Chrome labels HTTP sites as "Not Secure."

The process by which search engines execute JavaScript to see a page's full content. Googlebot renders JS but may delay indexing of JS-dependent content.