Webmasters often see an interesting trend of Google rankings for new pages. Fresh and relatively new pages are ranked highly for a specified period of time and then they gradually loose the rankings. This trend of getting good Google rankings and losing them overtime confuses the webmasters. Matt Cutts has come up with a video which explains the reason for this sort of behaviour from Google.
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The short explanation for this sort of behaviour is that Google takes some time to judge the relevancy of new pages and compares it with older pages. New pages created on newsworthy topics like some latest news receive a boost in rankings and then gradually loose the rankings when more and more webpages start competing with each other on the same topic. Hence, the more competing pages on the same topic gives way for the loss in rankings over time.
Also See:-
Single Page Websites and Matt’s Answer
Reasons for Drop in Site Rankings
Fresh Content Can Boost Site Rankings
Geotargeting Vanity Domains
Google Change History Feature in Google Analytics
Google Tag Manager
How to Make Full Use of Google Authorship Profile
PageRank Dissipation between 301 Redirects and Normal Links
Google to Take Action Against Sites that Sell PageRank
Search Engine Optimization or Search Experience Optimization
Google to Extend Support to Toolbar PageRank
Google’s Take on SiteWide Links
Google Human Quality Raters Do Not Influence A Website Ranking Directly
Google Now Cards
