When people type in a keyword, Google scans a database with hundreds of billions of web pages to deliver the most relevant results. This includes web pages, news articles, images, videos, local business listings, and other types of niche content. Search engines use hundreds of factors to rank these websites and content. To ensure that your website is seen by as many people as possible, search engine optimization is key. However, it is important to keep in mind that search engines change their algorithms frequently, and this may affect your results.