The Ahrefs SEO WordPress Plugin is a part of Ahrefs toolset, classified under Integrations. You need an active account at ahrefs.com in order to use the plugin's features without any restrictions since that entitles you to use Integrations. Refer to the section below to find out how many integration rows the plugin consumes.
If you don't have an active Ahrefs account, you can opt for a free Authorization code during the plugin activation. The disadvantage is that the free code is temporary and expires every few weeks, so you’ll have to reconnect the plugin each time this happens.
Google Analytics & Google Search Console Requirements
In order to retrieve the required data to analyze your site pages, it is mandatory to connect your Google Analytics & Google Search Console accounts.
The plugin requires at least WordPress version 5.0 and PHP version 5.5 to work.
How many Integrations rows does the plugin consume?
The plugin pulls the number of backlinks for all the pages included in the analysis. Each page consumes 2 integration rows.
You can check how many Integrations rows you have left either in your Ahrefs API profile...
or under the Ahrefs SEO plugin admin settings.