Search engine optimization (SEO) is used to market websites and make them more powerful online. The objectives of SEO are to increase website traffic by writing keywords that are more searchable, place websites in the digital market, and boost branding and commerce purposes. Key factors that influence a website's ranking are anchor text, link popularity, trust authority, and on-page keyword management. SEO is optimized using social media marketing, pay-per-click advertising, keyword analysis, email marketing, Google Webmaster tools, and Google AdWords.