How Many Sites Per Server

InsanelySane

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How many sites per server would someone deem safe? I'm not interested in traffic/memory consumption but more of Footprints, Ranking issues, etc.

Right now I have about 22 sites on one host and am debating whether I need a new host.
 
It depends, if they are all in different niches your fine. You really only need to worry about it if you're building a blog/link network. Which, if you're doing that you should use all seperate IPs and a variety of web hosts.
 
If you're not linking them together or trying to rank for the same keywords it doesn't matter. Look at how many sites hosts like Hostgator put on a single IP (thousands).
 
If you're using spammy techniques for SEO Google will at some point see the connection with the ip's and connect the dots...

If you're just hosting some site (client sites etc) there's no problem as long as none of the sites on that server do something that would be deemed as "bad"
 
I have never had an issue, but if your stressed about it, get different IP blocks, register a separate nameserver for every account, use some IPV4 and some IPV6... you can still use the same server and load up without worries that it all links back to Google as one provider. You can also use cloudflare on top of all that to build layers of protection and make it about impossible to see what's going on.
 
Any suggest if someone host hundreds of sites but worry about speed?
 
Any suggest if someone host hundreds of sites but worry about speed?

Upgrade your server, add RAM, get a better network. There are many ways to speed up your server. One nice way is to switch to SSD if you don't have them already. More SSD and extra RAM can do wonders.

You need to figure out where the bottleneck is. You have your processor, RAM, drive, firewall, network connection, and router... your traffic will only go as fast as the weakest link in this chain. Solving slow traffic means discovering where you are slowing down. The two most common points are RAM and your drive seek-time. But, if you get lots of visitors and you are on some crappy 10MBS port, then you will slow down and you cannot improve times until you get a better network.

Your firewall can help. If you don't get any sales from certain countries, you can block them completely and eliminate that traffic, etc. There are many ways to improve with a firewall. Ultimately, each server is case-specific and you will need to consult a trained technician who can analyse your situation and offer advice.
 
Yes, it would depend upon their niches, if all your sites share the same niche, it may well be worth going for a new server now.
 
Consider using Cloudflare (free tier) to cache and speed up your sites. In doing so you also get different IPs (assigned by Cloudflare) making your sites look like they are on different hosts.
 
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