This depends on whether you are on a Free or Paid plan.
On the free plan, your website is on a custom subdomain such as https://YourBusinessName.ueniweb.com.
Our paid plans come with a Custom Domain name such as www.YourBusinessName.com.
Both the free and paid plans are present on ueni.com in long format: https://ueni.com/en-gb/b/your-ueni-website
The long format is your official URL. It is optimised for search engines and is more easily found. When you see your website listed in search engine results, the long format will be the format you will see.