11 Sep 16 12:36 am
We all must keep in mind that there are many factors that can help a page rank well. On that same note, there are many factors that can decrease a pages rankings and these factors are changing all the time due too search engine algorithm up-dates and changes.
Though it is hard to determine exactly what has made a page drop in rankings it may be as simple as other pages have simply gone up in rankings due to content, links or any other factor and are now above the other page.
I also believe that pages (like several of mine) that once ranked well based on link structure have now dropped in the rankings due to algorithm changes that give less value to some or many of the links to that page that once were considered good quality links but are now seen to be of lesser quality.
There is no one way or even several ways to ensure good rankings and algorithm changes will keep changing. This is just the nature of search engines and is why you should always keep your marketing efforts diversified. While one of your pages may drop, hopefully another will go up.
Never Give Up!!!