Is it still necessary to use different IPs for every site?

[ckissi]

In the basics of SEO few years ago you can find, that its important to have your sites on different IPs.

Is this still important ? What do you think ?

MattC claims in one video it's not that important anymore.

Do you use same IPs for most of your sites ?

[mhansen]

We obfuscate as much as possible, to protect the innocent!

[netmeg]

Hosting matters, but IP numbers not so much. I use different hosts for different reasons, but IP numbers aren't anything I worry about, over 100+ sites.

[Philosopher]

It depends on what the sites are being used for. If the sites are all targeting different markets then there is no need to have different IPs.

If the sites are being used to target the same general niche, then I try to keep each site as unique as possible.

[HuskyPup]

I've never had a problem so as long as the content is pretty much all unique there should be no issues. Supposedly it's possible to run duplicate content targeted at different markets and still be ok i.e. the same site for .com and .co.uk

I've never tried that but may do soon for an experiment!

[dhaliwal]

if sites are in same sector, i would prefer to have different IPs (even hosting accounts with different companies)

If they are with different theme, i won't mind on one IP.

[Robert Charlton]

I think it depends also on the backlink profiles of the particular sites. If each site has many independent inbounds from unrelated sources, then they might do OK with the same IP or related hosting.

If the sites are related in market area, though, and they've historically been promoted in tandem so that they have similar backlink profiles, then I would definitely keep hosting separate.

This is based on several experiences from some years back... with "sister" sites for different brick and mortar businesses owned by the same umbrella companies. The difference in separating hosting was so dramatic that I've never seen reason to experiment again.

That said, I wouldn't hesitate to share IPs for unrelated sites.