SEO (search engine optimization) aims to improve the ranking of a website. Search engines have a system of ranking websites based on their relevance to search queries and the quality of the content. This process is called crawling, indexing, and ranking. Ranking can only happen after the crawling and indexing processes have been completed. Google’s main search algorithm, Google Hummingbird, is responsible for these processes. This algorithm connects words with similar search queries to create more relevant search results.