Many SEO experts argue that the age of the domain accounts much in terms of strength of a site (and thus the value of the links that can offer) while others will say that the new domains can be just as powerful.

Personally I think that the new sites get a slight initial push, before falling until "try field" to be reliable. Ah, let's not forget those convinced that the power of a website is all in its PageRank.

this is one factor among many that end up in the cauldron of the algorithm Google's secret ... well, the PR is only the most famous of a series of more than 100 measures taken into account in determining the authority of a site. However, as with many details within the SEO , the only people who know what makes a site power are the people who write the search engine algorithm. Everything else is an educated guess, and no matter how authoritative is the SEO expert who gives advice. The three keys that seem to count more, based on the search for evidence with my tools of SEO, today in my opinion are:

1. Link Popularity - the volume of links to your site.

2. Relevance of the anchor text of destination content on the page.

3. The search for a proper market niche .

There are clearly a lot of other connection parameters to determine the strength of a backlink , but it seems the good old traffic volume and the relevance of the anchor text are still high on the list of factors affecting the strength of a link. Indirectly, then, the search for the niche market and the proper use of keywords throughout the site determine the success of a link building campaign and the site itself. The mere fact that certain sites are more "powerful" than others in terms of boost that will give the SERP is often the reason why you are creating a lot of confusion and misconceptions about the correct way to do link building (sometimes there are real campaigns of counter-information about).

That is why I refer to words like "power" and "strength" of a link, avoiding exact measurements, because in fact in building your link building campaign will discover what works for you and what does not, and what are the strategies right to improve the ranking of your website on search engines.