Audits move forward in steps. While the audit page is open, the page itself advances the crawl every few seconds; when it is closed, the site's scheduled job continues it.
If the progress does not move for several minutes:
- Reload the audit page and leave it open.
- Check that your website is online and is not blocking unknown visitors (some firewalls block crawlers).
- If the audit shows failed, the message tells you why. Fix the cause and start a new audit.
A slow website takes longer to crawl, because the crawler waits for each page.