Board Thread:Support Requests - Getting Technical/@comment-25401994-20181013040027/@comment-34858178-20181013081431

Yes, you can change.

Go to your wiki's home page and click on the small arrow button which is in the right side of the edit button and then there some options will appear choose "Rename" option and then rename it.

Or

If you want to change the url of your wikia like https://your.wikia.com to https://test123.wikia.com then you can contact to the staff.