2015 and its effect on SEO

There was once a time when SEOs used to focus all of their time and energy on giving their rankings a boost.  SEO has changed over the years and it has caused many SEOs to change their priorities as well.  There have been many changes made to SEO over the past few years.  The algorithm updates that Google has made are the main reasons behind these changes.
Google’s Panda and Penguin algorithms have definitely done a number on SEO.  These two updates have drastically changed the landscape of SEO.  Since SEO is no longer as simple as it once was, you can’t help but wonder how this online marketing strategy is going to work in 2013.   Here are some things to bear in mind regarding SEO in 2013.
Focus on Keyword Importance Instead of Keyword Density
Instead of trying to spend all of your energy on keyword density, you should try to prioritize keyword importance instead.  The best way to pull this off is by using TF-IDF (term frequency-inverse documentary).  This is a statistic (numerical) which gives us a reflection of a particular word’s significance to a document.  The old way of making keywords standout is no longer that effective which is why you need to be a bit different when approaching Google’s algorithms.
Using this tactic along with LSI will make sure that your sites get the best possible ranks on Google.  This way, you won’t have to worry about Google penalizing you for keyword stuffing.
Unnatural Links are Not Welcomed by Search Engines.
You should probably clean up any links like these that are still in your site because search engines despise them.   Google’s Disavow Links tool can help clean up links that you have no control over or any other old links that may still be in your site.   If you do this, then you will help get your SEO cleaned up.
Say No to Mass Backlinking
While this method may have been effective back in the day, it is no longer as great as it once was especially in the long run.  Black hat SEO practitioners use specialized tools for mass backlinking and should be avoided at all costs.   You will be able to get some great benefits from Google’s Disavow Links Tool in this situation.
Practice Link Diversity
Before Panda and Penguin existed, the use of consistent inbound text links was once thought to be a good SEO strategy.  However, since things have changed a lot over the past few years thanks to the updates by Google, this sort of link consistency is now being marked as spam by search engines.   Google expects your links to contain information relevant to your site, which is why you must create a wide array of inbound text links that contain this kind of info.