The visibility index is a characteristic value with which the visibility of a domain in the search engine results pages( SERP) is determined. The size of the numerical digit shows the importance of the domain and tells whether the domain gains more or less visitors via Google. The higher the digit, the more visitors.
The visibility index directly shows the effects of search engine optimization or advertising measures. It is updated regularly.
The visibility index also allows comparisons with competitor domains. In this way, it is possible to see the medium- and long-term effects of SEO measures from one's own domain and those of other domains, and to estimate market dominance. In addition to the visibility index from Sistrix, there are other characteristic values for the visibility of a domain with the Online Value Index( OVI) and with Seolytics.