Can one website affect others if they share Google Analytics?

[beckywu]

My google analytic associate with many websites. So, I want to know if google can through analysis my account to judge that these websites belong to one company or person. And maybe one of the sites be punished, it will affect several of other sites?

Long before, google began to collect data from GA etc they provided. I think they maybe.

[dududoseo]

I think Google has many ways to find the owner of the site. He can look at the who is domain, ip address, adsense shared among multiple sites, your browsing history. I believe that the GA is only one way to find out more.

In my opinion, Google will only punish a network of sites if they identify a joint violation. If only one site is breaking the rules, only one site will be punished.

[goodroi]

It has happened in the past that entire networks have been penalized but that has been for severe issues. Google and Bing both know that they can look at the code of the page and see that different sites share the same analytics code. If you are taking a high risk approach to SEO then you probably don't want to share analytic code or the other signals dududoseo mentioned. But for most webmasters it is normally a non-issue.

[deadsea]

Folks here have reported that when they have some of their sites penalized (say 10 out of 20), the thing in common between the penalized sites is often shared analytics code or shared adsense code.

I'm sure Google doesn't always just blindly apply penalties to every site under an account, but in some cases it does appear to happen.

[beckywu]

@deadsea
"Folks here have reported that when they have some of their sites penalized (say 10 out of 20), the thing in common between the penalized sites is often shared analytics code or shared adsense code.
I'm sure Google doesn't always just blindly apply penalties to every site under an account, but in some cases it does appear to happen. "

in fact, all of these websites belong to us. and websites share the same brand, logo, and other informations. so, when you saw these websites, every one can know these websites belong to one person.

so, i want to know, if google can affirm this, and other websites will be affected if one of them penalized by google (part of our two websites share the same content, same brand, product, logo etc. they share one analytics account)

[tedster]

I'd say you need to be breaking a guideline of some kind - and in a rather strong way on more than one site - to see all of them penalized. I've worked with many people who run multiple sites and I've never seen one site's penalty bleed over to the others except in one case, and they were playing intense backlink games for several of the sites.