Ahrefs is a software company that develops online SEO tools and free educational materials for marketing professionals. Ahrefs all-in-one SEO toolset can help you with: - Competitor research: unveil your competitor's organic keywords, backlink strategies and PPC keywords - Link Building: find the strongest backlink opportunities in your niche - Keyword Research: get maximum relevant keyword ideas and see how hard it would be to rank - Website Audit: find what SEO issues your website has and learn how to fix them - Content Research: discover the most popular content on any topic and find the best ideas for your own content - Rank Tracking: track your search rankings along with your competitors' - Mentions Monitoring: get email alerts every time you or your brand in mentioned online. Ahrefs database has 8 billion keywords and 421 billion indexed pages. That is why Ahrefs is able to provide maximum data accuracy to its users.