SEO is a technique that search robots use to find and rank your website compared to other sites according to the search query. It allows you to get traffic from search engines.
Unlike humans, search engine text is managed. They used the crawler or spider or program called Google Bots Web crawl as Google. The spiders crawl the link from one page to another and index everything that they find on their way. The search engine web crawls many activities for the most accurate Crawling, Sequencing, Processing, Reverence Count, and Recovery.