You can use the cPanel's temporary URL to verify your website before publishing it live. However, the temp URL feature is disabled in WHM/cPanel by default. So when you try to run the domain using a temporary URL, you may receive the error like 404 not found or Not supported.
Please refer to the following steps to allow the temporary URL.
- Log in to the WHM Panel.
- Go to Security Center. >> Apache mod_userdir Tweak.
- Check the Enable mod_userdir Protection also check DefaultHost (nobody). Finally, click on the Save button. Now, verify your domain with a temporary URL, and it should work fine.