In 2023, research conducted by Onely found that an average of 16% of valuable pages on well-known websites aren't indexed. This means these pages are not appearing in search engine results pages (SERPs). Indexing in SEO refers to storing web pages in a search engine's database, a crucial step for visibility on platforms like Google. Google indexes just 56% of indexable URLs after one day of publication. After two weeks, just 87% of URLs are indexed. It's important to note that Google employs a sophisticated system to manage its website crawling operations. Some websites are crawled more frequently, and others are visited less often.
Search engines use complex algorithms to analyze the indexed data and determine the relevance and importance of each page. Numerous ranking factors, such as keyword relevance, content quality, and user experience, contribute to ranking pages in search engine results. When a user enters a search query, the search engine looks into its index to find pages that match the query. The algorithm considers various factors to rank these pages based on their perceived relevance to the user's search intent.
Why Is Indexing Important?
Indexing improves the ability to analyze changes in data over a specified period. It is a standard method economists and businesspeople use to enhance perspective and understanding of economic trends.
A database index is a data structure that improves the speed of data retrieval operations on a database table. When accessed, indexes quickly locate data without searching every row, significantly enhancing query performance and data access efficiency. As Douglas Dial, former CREF portfolio manager, aptly stated, "Indexing is an extraordinarily sophisticated thing to do."