For the website in question, the first domain alphabetically on the shared hosting space, strange search results are appearing on the SERP for keywords associated with the site.
Here is an example:
A search for "unique company name" shows the results: www.uniquecompanyname.com as the top result.
But on pages 2 and 3, we are getting results for the same content but for domains hosted on the same server. Here are some examples with the domain name replaced:
UNIQUE DOMAIN NAME PAGE TITLE
ftp.DOMAIN2.com/?action=news&id=63
META DESCRIPTION TEXT
UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN3.com/?action=news&id=120
META DESCRIPTION TEXT2
UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN4.com/?action=news&id=120
META DESCRIPTION TEXT2
UNIQUE DOMAIN NAME PAGE TITLE 3
mail.DOMAIN5.com/?action=category&id=17
META DESCRIPTION TEXT3
ns5.DOMAIN6.com/?action=article&id=27
There are more but those are just some examples.
These other domain names being listed are other customer domains on the same VPS shared server. When clicking the result the browser URL still shows the other customer domain name B but the content is usually the 404 page. The page title and meta description on that page is not displayed the same as on the SERP.As far as we can tell, this is the only domain this is occurring for.So far, no crawl errors detected in Webmaster Tools and moz crawl not completed yet.