It’s worth considering whether you need multiple domain names. If you have customers in New Zealand, South Africa or China, for example, you might also want to register the .nz, .za or .cn domains too. If they’re available, you should register the domain in every country you intend to operate. This will help search results, but it also protects your name. But beware, if you purchase too many domain names and have them all providing the same content, search engines can see this as spamming and might penalise you. Web development companies like iFactory can help you with this if you’re not sure.