Does having all client websites on same server/same Google Analytics red flag Google?

[CustomButtonCo.com]

Are they same or similar products or subject matter?  Do you have any interlinking of the sites?

[BBuck]

Hi! Yes, similar subject matter, no interlinking. All different business addresses.

[CustomButtonCo.com]

Looks like your trying to cover a particular key term. Building a bunch of sites and trying to get them all ranked on P1 so you saturate the market. It's been done way to much. Google is very smart in detecting these things and it will effect the rankings. The fact you have them all linked in 1 login is a big Neon Billboard not a small red flag. They have already logged your email and associated everything to those domains.  These sites will now just be valid burn sites you can dump later.

[BBuck]

I just found this http://moz.com/blog/how-google-knows-what-sites-you-control-and-why-it-matters-whiteboard-friday . FYI.

[BBuck]

Thanks for your response. So, if I have 10 chiropractor clients, all in different cities, with different custom content (but related because they are chiropractors), you think Google will penalize them all? Is there a way around this? I am not putting up many sites to saturate a market, these are separate clients I am trying to rank in their markets.

Thanks for your insights!

[CustomButtonCo.com]

Yes I think this could give an algo penalty to the clients. You never know how the big G will perceive it. But better to be safe and keep everything separated.

Good find on the white board video that's got a ton of useful info.

[BBuck]

But we all have several clients. And I'm sure there are some who have several clients in the same vertical space. I wonder what are others doing to deal with this?

[Cyrus-Shepard]

Shouldn't be a problem except when the following issues arise:

1. Duplicate content - easy to do when you're dealing with clients in the same niche. This actually has nothing to do with being on the same server, but I thought I'd mention it
2. Unnatural interlinking between these sites.

In a normal world, there's probably no reason for these clients to link to each other. If you are doing a lot of linking between them in order to influence rankings, THAT could raise a red flag to Google. More than likely, they simply won't count the links. Worse case scenario you get a manual penalty.

On the other hand, it's completely normal to host sites on the same server, even with a common Google Analytics account. If you're not building a link network and have unique content, you shouldn't have much to worry about.

[BBuck]

Great. Thanks Cyrus. A related question, I am developing a website that I want to make sure Google does not see that it is related in any way to the others. I'm going to host it on different server, set up G-webmaster tools and G-Analytics separate from everything else, use different email to set up. Should I also use a different computer to develop it? Is there anything else I should consider?

(also, that black helicopter over my house last night...was it Google? 

[CustomButtonCo.com]

Don't need a separate computer just use a proxy service when logging in So your not using the same IP.

[klemtek]

We try to make sure that we have a different link profile for each of our cllients and that we have the Google Plus page in the clients name.  We have not seen a issue with having all the google plus accounts and google WMT in our email.

copyscape.com is a great tool to double check duplicate content and find out what is getting flagged.