I am facing a very unusual scenario for my web site. (https://zitomer.com)
When we try to access homepage https://zitomer.com it displays contact us page as a homepage.
What will be the issue? I am using magento 2.2.6
There is no redirect, your home page
https://www.zitomer.com/ display a contact form that it's not the same as the contact page
https://www.zitomer.com/contact-us. Check the content of your homepage what you're displaying (cms page, xml etc...)