I have a business site (example.com) hosted at NameCheap. The hosting plan allows up to 4 addon domains. I have two more personal sites (a.com, b.com) on another hosting. Obviously for reducing the costs, I am tempted to host my personal sites as addon domains on the example.com hosting. My question is how likely it would be for some power user, (through Whios, or advanced and elaborate techniques which I am not aware of) to connect the dots and figure out that the owner of site a.com is same as owner of the example.com?(by the way, both domains are registered with whiosprotect guards, so registrar info are not accessible from there).
Is it possble to discover that an addon domain is owned by the same person as the main domain?
domains;web hosting;shared hosting;ownership;add on domain
There are likely several attributes that your sites share in common that could be used to link them.IP Address -- they will be hosted on the same server.  Sites like this one list the host names that point to a particular server.  There may also be many sites not owned by you on the same server which may disguise it somewhat.You use the same templates or technology.   Sites like this one track which technologies your site uses.   Such a tool could be used to correlate ownership of your sites.Google Adsense code -- If you have advertising on both sites you may use the same publisher ID in the source code of each because ad networks such as Google Adsense prohibit multiple accounts per personGoogle Analytics code -- Similarly if you use Analytics, you could use the same code on both sites.   At least with Google analytics you have the option of tracking the sites under different accounts or codes.Google site verification -- If you verify both sites with Google Webmaster Tools, you will have to use the same code for both sites.  You could put the code into a specially named HTML file rather than use a meta tag or a DNS entry which would make it very hard for any user to discover.