A domain name is a sequence of letters and numbers which determine the address of your site. You need to register a domain name before your web site becomes accessible at this address.

Shared (or virtual) web hosting is the most fitting way of hosting for 99% of web sites. It means that a web hosting company will have one or more servers (computers constantly connected to the Internet that run a web server software such as Apache or IIS) that will be running multiple web sites (it will be shared). Unless a web site is exceptionally busy or requires a lot of bandwidth, this is the least expensive way to get a real web site. You can still have your own IP address with virtual hosting and the site won’t look any different to users. Other options are dedicated, co-location, or doing it yourself web hosting. In those options you have the whole computer to yourself and you can do things like install your own software.

Yes. We recommend that you register your domain name with a separate registrar before getting a hosting plan. Then, when you need to move to another host, you just need to point your domain’s name servers to this new host. If you registered your domain name with a host and now you want to move, you should find your registration records or contact this host and ask them how to control your domain name. If you have a problem, you can usually see the name of the registrar by performing a “Whois” query on your domain name and contact them.

There are companies such as Infocraft for that.

Domain parking lets you cheaply reserve a domain name for future use and display an “under construction” default page on it. You can register a domain and not park it anywhere but then your site will simply be inaccessible until you get a web host. Some registrar let you park your domain for free.

Uptime is the percentage of time that a web site is working. For example, if some host has an uptime average of 99.86%, this means that your site will be down for a total about 1 hour each month.