I was simply wondering...what are the advantages of having a unique IP? I know a host that hosts site without a unique IP, but you can still access your site without the www in front.

In shared hosting you are sharing an IP with so many domains. In that case if some body violates the rule and IP is blocked you also will suffer with out doing anything wrong. So many hosts offer dedicated IP as an extra option. It is useful when you need SSL. Hope this helps.

Dedicated IP is only required if you are using a SSL or an anonymous FTP. Otherwise there's not use (technically).

If you don't want to penalized for the actions of others utilizing the same IP address - I would go with a dedicated IP.

With unique IP you may host a site without a domain name!

Originally Posted by iHubNet-Matt

In shared hosting you are sharing an IP with so many domains. In that case if some body violates the rule and IP is blocked you also will suffer with out doing anything wrong. So many hosts offer dedicated IP as an extra option. It is useful when you need SSL. Hope this helps.

Originally Posted by andrei155

If you don't want to penalized for the actions of others utilizing the same IP address - I would go with a dedicated IP.

I'm not sure what particular actions you have in mind, but by far the most common IP blacklisting implementation is to block mailservers. In this case the IP address of the website is somewhat irrelevant, as the blacklist contains IP addresses of the mailserver: this is usually a single IP per mail server, and will not vary whether your site is using its own dedicated IP or a shared IP.

Aside from SSL and anon. FTP there is no reason to use a dedicated IP address for each site. In fact doing so without good reason is against the rules set out by ICANN / ARIN / RIPE etc. - not forgetting that IPv4 space is finite...

By default, the Ip of the mail server is the Ip of the user account. This is true, unless you set up a specific mail server.

Originally Posted by andrei155

By default, the Ip of the mail server is the Ip of the user account. This is true, unless you set up a specific mail server.

By default in what deployment exactly...??

what are the advantages of having a unique IP?

You get to brag about it?

but you can still access your site without the www in front.

Of course. There's nothing special about that, and it's pretty much how all hosts approach this these days.

If you own multiple sites and they are linked together having different IPs could-should have some SEO benefit.

As rule that is being taken to have some SEO benefits. At least our customers do take it to have SEO Benefits. Be independence from other people on the server they are hosted on

Damien, by default in WHM/ cPanel - I guess I assumed that most hosts use the two .

IP have nothing to do with SEO benefits, you can take a dedicated IP, if you are going to setup a big site. With shared IPs, your site might be in blacklist (and your mails in SPAM), without your fault.

Originally Posted by 11Sale

IP have nothing to do with SEO benefits, you can take a dedicated IP, if you are going to setup a big site. With shared IPs, your site might be in blacklist (and your mails in SPAM), without your fault.

If you are not going to email anyone?
IP is very important for SEO. If your IP (shared) is banned in google, not because of you you because of your neighbors which have the same IP as you.

Originally Posted by ~ServerPoint~

If you are not going to email anyone?
IP is very important for SEO. If your IP (shared) is banned in google, not because of you you because of your neighbors which have the same IP as you.

How long have Google blacklisted IPs, and what for... Please direct me to Google statements on this issue

Google DON'T have "blacklisted IPs"
If they did there wouldn't be a single Tripod or Geocities hosted site in their index.

Dedicated IP as rule being ordered for SSL certificate which needs that. And that is my first time I hear about dedicated IP and SEO

the only things that help having your own ip

if a user sends out a lot of email on the same hosting company you are on then all emails from that ip could end up in the spam box on some email IPS. also it means you could get pass computer filters if the domain is blocked as you could use the ip to still get to the site.

the only other time your own is for SSL (private one) as you can get a shared SSL

a long time ago google used to give you a better rank if you had your own ip as it was seen as the site was big as it could be on its own dedicated server but this now longer happens anymore.

a not google dose not nomaly block ips from google but it dose block domains so you got northing to worry about with having a shared ip on this happing

so its just to make sure your email dont fall in the spam box really. well this is true if you are on a shared hosting plan of course there is more need for a dedicated ip on your own vps or server

hope this helps you