Different TLD is a different website with different backlinks and different competition.
Google Webmaster Tools allows for manual geotargeting of gTLDs (such as .com and .net) with the
Set Geographic Target tool. To set up geotargeting in Webmaster Tools, follow these steps:
- On the Webmaster Tools Home page, click the site you want
- Under Site configuration, click Settings
- In the Geographic target section, select the option you want
Then you might pass signals if you share the same content in different languages:
The X-Default Hreflang Attribute Value
So, what happens when someone visits your site from a country that you don’t have a landing page for? Perhaps you’d want them to land on a generic home page, or a page where they can select their country or language.
Thanks to a new bit of markup from Google called “x-default,” you can now specify a default page for users outside your target regions. When specifying your region-specific landing pages with hreflang, you would use the value “x-default” to indicate which page is the default in situations where you don’t have a region-specific landing page. Thus, you might have a cluster of HTML link tags that look like this:
<link rel=”alternate” href=”
http://example.com/en-gb” hreflang=”en-gb” />
<link rel=”alternate” href=”
http://example.com/en-us” hreflang=”en-us” />
<link rel=”alternate” href=”
http://example.com/en-au” hreflang=”en-au” />
<link rel=”alternate” href=”
http://example.com/” hreflang=”x-default” />
Other than that you have to link build and content tune the alternate domains so they compete with relevance and PageRank like your main site.