Ahrefs

Ahrefs builds online SEO tools and creates free learning materials that help millions of website owners around the globe to get more traffic from search engines.

For over 10 years now, Ahrefs has been crawling the web, storing and processing petabytes of data and fine-tuning a simple, intuitive user interface. It’s now widely regarded as both a must-have for top marketing professionals and a trusted friend to small business owners.

Ahrefs tools and features cover most essential SEO needs like competitor research, keyword research, site auditing, rank tracking and much, much more.

The company was founded in 2010 by Dmitry Gerasimenko and is headquartered in Singapore.