Guide

1. Go to Ahrefs and click on Site Audit on the top.

2. Click on New Project if you haven't run an audit before.

3. You can Import data using Google Search console to perform a site audit.

4. Or if in case you don't have the access to Search Console you can choose Add manually.

5. Add your website's url give an appropriate Project name. Hit Continue.

6. You can skip this step by clicking on Continue. (If you haven't imported data from the Search Console in the earlier step.)

7. Toggle the Frequency for future audits.

8. Make sure, run first crawl now is turned ON and hit Continue.

9. Website crawl will start; Please note that this is a long process and can around an hour (or more) to complete.

10. Open your project once your audit is done.

11. Click on Client Errors (4xx) under HTTP status codes distribution.

12. These are all the errors with 4xx code Ahrefs found while crawling your website.

13. Locate your 403 errors.

14. You can see an error overview of the links when you click on them.

15. You can Export all the 4xx errors to a CSV file.