So you have decided that you need a website. Here are a few questions to consider:

Are you intending to support existing clients, passing general information out to anyone who might be interested, promoting your business to those who have never heard of you or providing further information to those who have? This matters because of the subsequent questions.

If visitors will already have details of your website address it doesn't matter too much what you call it. If you intend to promote the website by advertising it in the media, on the side of vans, by handbills or by word of mouth, you need a name that people can remember. If you are promoting an established business it follows that your site should have the same name if possible. You might develop a website for a particular campaign in which case you might choose the name of the product or base the name on the advertising tag line. These methods can be supplemented by search engine results.