Visibility Index

The visibility index aggregates a website's organic rankings into one metric. Instead of checking thousands of keywordsA keyword is the search term users enter into a search engine to find information, products or providers. Keywords are the basis against which rankings and visibility are measured.Open glossary entry → individually, the indexIndexing is the step in which a search engine processes crawled content and decides whether a URL is added to the search index. Only indexed pages can appear in search results.Open glossary entry → reveals how present a domain is in Google search overall.

In simplified terms it derives from three factors:

• the ranking positions achieved,
• the search volume of the keywords,
• the expected click probability per position.

A position 1 ranking for a high-volume keyword contributes far more than position 28 for a niche term. Importantly, the visibility indexThe visibility index is an SEO metric that condenses many of a domain's organic Google rankings into a single value. It shows whether search visibility is rising, stagnating or falling.Open glossary entry → is not an official Google metric and not a revenue figure. Each tool (such as SISTRIX, Semrush or XOVI) uses its own keyword set and weighting, so values from different providers are not directly comparable. What matters most is the trend within the same system and the comparison with competitors.