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Buying a domain is like buying a used car. It may look new and pretty at first glance, but it’s better to give it a thorough check and look under the hood before making the final decision. The same goes for domains — to boost its chances of having SEO success, multiple parameters must be checked up on like age, history, authority, and name.

Is www prefix necessary or obsolete? Learn what is the value of www and how to (not) use it properly to keep your website SEO-friendly.

In this post, we are answering the key questions about subdomains: what they are, why you might need them and how to promote them in a search without harming your entire website.