How much does a domain's age affect its ranking?
Why Webmasters Stack Exchange recommends it
Webmasters Stack Exchange answerers cite it as a direct statement from a Google engineer that domain registration length is not something to worry about for ranking.
Recommended by 0 people across 0 different months, 2010 to 2014.
What it is
A short Q&A clip from Google's Webmaster Help series in which Matt Cutts answers a viewer question about whether registering a domain for more years boosts its search ranking. Recorded in April 2009 and published on the Google Search Central channel.
What people said
Cites Jeff Atwood · 2010-08 · Webmasters Stack Exchange · on “Does registering a domain for 10+ years help search rank?”
This March 31, 2005 Google patent [LINK] seems to indicate it might be true: [0039] Consider the example of a document with an inception date of yesterday that is referenced by 10 back links. This document may be scored higher by search engine 125 than a document with an inception date of 10 years ago that is referenced by 100 back links because the rate of link growth for the former is relatively higher than the latter. While a spiky rate of growth in the number of back links may be a factor used by search engine 125 to score documents, it may also signal an attempt to spam search engine 125. Accordingly, in this situation, search engine 125 may actually lower the score of a document(s) to
Cites sam · 2012-11 · Webmasters Stack Exchange · on “Does the period of hosting impact website rankings on search engines?”
how long the site has actualy been hosted i think has little to do with it, as many sites can just be hosted with sedo parking or an apache start page for years before there is a website present, if your referring to the age of the domain, ie how long ago the domain was registered matt cutts from google has an interesting done a small video on it here - [this video]
Cites 40XUserNotFound · 2014-05 · Webmasters Stack Exchange · on “Does a longer registration length/period for a domain name improve its SEO and search ranking?”
Matt Cutt, an engineer at Google [LINK] , was asked the following question [this video] regarding domain registration length's effect on SEO and search results: How much weight does the number of years a domain is registered for have on your ranking? This was Matt's response ( bold emphasis mine): My short answer is not to worry about that very much. Not very much at all, in fact. Danny Sullivan had asked about this recently because there were some registrars that were sending around emails...that said "Did you know that Google gives you a bonus in ranking if you register your site for 3 or more years?". Just to clarify, that's not based on anything that we've said. My short answer is make great