In addition to what Dawid suggested, make sure you have the following settings configured correctly on your site:
- Settings>Content>Web site content>Default alias path should be set to
- Settings>URLs and SEO>SEO - URLs>Default page should be set to
Use domain root
- Restart your site
Doing this will set your site to properly use the
home page as your root page so you don't have to use
/default.aspx as your root or home page.