The accessibility and transparency that a web page offers to the web crawlers of the search engines to facilitate their task, that is, the search, crawl and indexing of its contents. It is a feature that can be enhanced through the use of web optimization techniques.
Indexability determines web positioning: the more indexed a page is, the more likely it is that the search engine will show it among the results of a query, hence the objective of any website is to achieve complete indexing, since it implies the inclusion of all the structure, pages and contents that compose it in the search engine's database.