Ahrefs

Ahrefs is a marketing data platform, founded in 2010, that helps brands stay visible across search engines, AI chatbots and the wider web through SEO and marketing analytics tools. Its software is built on one of the world's largest web-crawling data engines: the company crawls 8 billion pages a day, has indexed 3 trillion external backlinks and 28 trillion internal links, and stores 320 petabytes of data. Its crawler is the 4th most active globally, having worked through the internet for over 15 years.

The product suite comprises Site Explorer, for backlink and search performance analysis; Keywords Explorer, for keyword research and content planning; Content Explorer, for content opportunity discovery; Brand Radar, for tracking brand presence across AI chatbots; and further capabilities in AI-powered content optimization, web analytics and social media management. Some 44% of the Fortune 500 use the platform, among them Adobe and Uber.

Technical work spans web crawling, SEO data processing, large-scale data storage, AI visibility tracking and web analytics. The company operates as a lean, multinational team of 154 people distributed across 26 locations, and is proudly bootstrapped with no outside investors. Its stated motto is "First do it, then do it right, then do it better", reflecting a culture of agility and continuous adaptation.