If you’re using Wix’s free plan, then you won’t be able to use a regular domain name like “www.mysite.com” or “www.mysite.net” (domains like this come with Wix’s paid plans). Instead, your site will follow the format www.yourname.wixsite/yoursite, which is enough to get it up and running. But if you’re going for a more professional look, then we recommend upgrading to a paid plan to secure a more polished domain!  
Hi Glyn, You can indeed keep your domain name. Domain registration is a separate process to site building, so there's no risk of getting one stuck on a platform you don't want to use any more. Wix is great at walking you through the domain transfer process step by step when you sign up. There's an official video guide here if you'd like a sense of how it's done. Hope that's helpful! Ta, Fred
Sites like Google Trends or BuzzSumo are your friend, here. To illustrate this idea, below we compare the interest in the terms “content marketing 2018” and “content marketing 2019”. Obviously, everyone’s talking about 2018 content marketing IN 2018—but there aren’t many indexed pages covering the 2019 strategies midway through the year. As 2019 approaches and the gap shrinks, more people start talking about it. 
Finally, create web pages for the content you collected for the site and add the web page parts such as images, videos, headlines, and text. If a template includes pages that you don’t need, either delete those pages or save the pages as drafts. If you save the pages as drafts, you’ll have access to them in the future. There are a few essential pages that you should consider adding: