Glossary

SEO glossary

Short English explanations for common SEO terms with links to related tools and deeper guides.

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Open a guide, review the short explanation, run the related check and continue with the next practical step.

Indexing

The main URL version search engines should treat as preferred when duplicates exist.

A robots meta directive that tells search engines not to keep a page in the index.

A crawl control file for bots; it does not guarantee that a URL will be removed from search.

A machine-readable list of URLs that helps search engines discover important pages.

The page title used by browsers and often by search result snippets.

A short page summary that can influence snippet clarity and click expectations.

Metadata for link previews in social platforms and messengers.

Structured data vocabulary used to describe page entities in JSON-LD or other formats.

User experience metrics for loading, interaction and visual stability.

Time to first byte: how long the browser waits before receiving the first server response byte.