Recently, I did a study of how important domain extensions like .com, or more specifically, how common they appear in Google search engine results. These numbers are derived from tens of thousands of tests, which is a sample size large enough to consider this data fairly accurate.The data was gathered from a server IP based in France. However, this didn’t have much of an effect on the results as only 0.5% of the first-page results came from .fr domains.
I found that out of tens of thousands of results, 79.9% of the first page results were from .com domains. As for the .net extension, 1.17% came from .net domains. The .org extension held much of the remaining share left behind from the .com domains with a 9.6% market share in the SERPs. Now the .info domain is where a big answer is shown. Only 0.07757% of the results were .info domains. This really explains how useless .info domains are when it comes to SEO.
When I looked at just top 3 results, 78.497% of the domains were .com.
This data was gathered by Josh MacDonald via Python scripting on December 20, 2014. Anyone who wishes to use this data, please pay respect and give credits to this page.