# About DR4 Checker

> DR4 Checker shows the Ahrefs DR4 Domain Rating of up to 10 websites at once. Where the ratings come from, how fresh they are, and the limits.

Canonical: https://dr4check.com/about

DR4 Checker is a free tool that shows the Ahrefs DR4 Domain Rating of up to 10 websites at once, so you can see where your website stands next to the ones you compete with. DR4 is the scale Ahrefs uses from December 1, 2026.

## Where the ratings come from

Every rating comes from Ahrefs' free Domain Rating API, which is why each one says Domain Rating by Ahrefs.

DR4 Checker is independent: it is not made or endorsed by Ahrefs.

## How fresh the ratings are

Once a website is checked, its rating is kept for 12 hours for everyone, so checking it again in that time shows the same rating, with the time it was checked. After that, the next check asks Ahrefs again.

## Limits

To keep the checker free for everyone, each visitor can check up to 20 websites a minute and 50 a day. When a lot of people check at once, it may ask you to try again in a minute.

## Contact

Questions, feedback, or a rating that looks wrong? Email [team@dr4check.com](mailto:team@dr4check.com).