Hello,

I'd like to set up 2 domains on one VPS. It will need to be IP-based since each domain will need to have its own SSL.

Is SEO affected by using 2 domains on one VPS (each has its own IP)?

Let's say I get a Linode 768 with 2 domains. Is the memory dynamically allocated to meet the demands of each domain, or is it split equally between the two?

Thanks!

1 image with a webserver serving 2 domains would share the memory rather than split it in to distinct halves.

I can't see why SEO would be affected by shared IP addresses - this site makes reference to a Google quote that says it doesn't matter http://www.searchenginejournal.com/dedicated-vs-shared-ip-addresses-and-seo/6444/

How would Google even know that they're hosted on the same VPS? You're using two different IP addresses in Linode's IP space. As far as everyone else is concerned, your two sites could be hosted by two different Linode customers.


It depends on your web server and application setup. Apache with mod_php? Everything is shared. nginx with one FPM pool for each site? Now you have a bit more separation. In either case, the most important thing is to make sure that you never run out of memory, no matter how much traffic your sites get.

Yes, it would be a LAMP (Ubuntu) with mod php.

Thanks for the answers!

Are there any other major high-level items I should consider before building the server? I've configured several LAMPs before, including one on Linode, but I've never set up one to handle 2 domains with their own IP. Should be fun!

While no mere mortal knows Google's algorithm exactly, I could see it being suspicious if 2 IPs in the same organisation's IP space aggressively cross-link between each other (for example). After all, some hosting companies give out lots of dedicated IPs per customer that the spammers like to use to cross-link their sites.

For the vast majority of cases though, this should be no problem at all. The problem only arises when the links don't seem "natural".