In terms of website functionality, having the URL with or without “www” generally does not matter. Most modern web browsers will automatically redirect users to the correct version of the URL, whether it includes “www” or not.
However, from an SEO perspective, having consistent URLs across your website can be important. In other words, it is generally recommended to choose either the “www” version or the non-“www” version of your domain and use it consistently throughout your website. This can help avoid confusion and potential issues with duplicate content.
In summary, while including “www” in your website URL may have been important in the past, it is generally not critical today for website functionality, but consistency in your URLs can be important for SEO purposes.