IP Canonicalization - is it necessary?

[onlineslotgames4u]

I know that canonicalization of the domain name (httpwww).domain to http:domain) is important, but does anybody know if I.P. is necessary as well?
and if it is, how should i do it?



Thanks in advance!

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From an SEO point of view, canonicalization is very important. If you have a website that has the same content spread across different URLs, search engines will split the rankings as well. An example is typing a website without the www in the toolbar.
Typing in the website link with or without the www at beginning will still lead you to the same website, however search engines may process this differently. This issue can be fixed by creating redirects. There are three main types of redirect methods: the 301, 302 and 307 redirect.