Testing your SAAS business website design is essential to ensure that your website is functioning properly and delivering a great user experience. Here are some steps to take when testing your website design:

1. Test for responsiveness: Make sure that your website design displays correctly on different devices and screen sizes. You can use tools such as BrowserStack and Responsinator to check how your website looks on a variety of devices.

2. Check for broken links: Broken links can be a major issue for website visitors. Use a tool such as Screaming Frog to check for broken links on your website.

3. Test page loading speed: Slow page loading speed can be a major turnoff for website visitors. Use tools such as Pingdom and GTmetrix to check page loading speeds and make sure they are within acceptable standards.

4. Test user experience: Make sure that your website design is easy to use and navigate. You can use tools such as UserTesting to get feedback from real users about their experience with your website.

5. Check for SEO optimization: SEO optimization is essential for your website to show up in search engine results. Use SEO tools such as SEMrush or Ahrefs to check for SEO optimization issues.

By following these steps, you can ensure that your SAAS business website design is functioning properly and delivering a great user experience.