Many web hosting companies will also take care of your domain registration and automatically renew your domain name as it comes up for renewal. Find a web host you like and look for that service to see if you can bundle the tasks with one vendor.

That is a good service to have. You should also make sure if they automatically bill you or if it is a free service.

and while you are at it, look for tools the web host may offer to help you manage and understand your site traffic.

If you are planning to host the website then it makes sense if you go with a vendor who provides both domain registration and hosting services.