We have our own crawlers and index. AhrefsBot is the most active web crawler in the “Search Engine Optimization” category on Cloudflare Radar.
Ahrefs is a data company. We collect, process, and store data of the entire web continuously into a proprietary index.
This index provides backlink, page code, and deep dive information about any website we can visit. We then build all sorts of powerful tools to utilize that data for marketing and business intelligence.
This data is also used to calculate our proprietary metrics: Ahrefs Rank, Domain Rating and URL Rating. As a result, we also have the world's largest index of live backlinks.
We continue to build more great capabilities such as our AI Content Helper, Patches on our platform which you can read about on our product blog.
A quick overview of all the things only Ahrefs can do can also be found on this page.