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How to Diagnose a Change in Rankings

Guest post by: Michael Marshall

Article Overview: There are generally 3 things that affect your performance in SEO. You change something on your page(s) or links Your competitors change something on their page(s) or links The Search Engine changes something in the data or algorithm

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How to Diagnose a Change in Rankings

Three things that affect your SEO Performance

There are generally 3 things that affect your performance in SEO.
  • You change something on your page(s) or links
  • Your competitors change something on their page(s) or links
  • The Search Engine changes something in the data or algorithm
To simplify things, we're not going to include influences like localization or personalization this time around.

When a change happens in your positioning, don't automatically presume that you did something. You need to investigate these possibilities in the correct order if you are going to assess your situation most efficiently.

First, look at whether something changed with regard to the Search Engine.

Secondly, if you've ruled that out, look at whether some change(s) in the competitive landscape is the culprit.

Third, if you've ruled out both of the above, look at changes you may have made.

Next, I will discuss how to investigate each of these areas and go deeper into why.


First, look at whether something changed with regard to the Search Engine.
When you notice a sudden change in your positioning for important target keyphrase(s), it may not be because you made some terrible mistake. There may be a change in the search engine that is responsible. If there is a significant change in the search engine's algorithm, there will most likely be a buzz in the SEO community because others will have been affected by it as well.
Check places like: If the change is significant enough, you'll usually find it discussed in one of those places.
You also need to look at your positioning on other pages and for other keyphrases. Look to see if your positioning for other keyphrases on that same page was also affected. Look to see if your positioning for other pages were also affected.
When a change in the search engine is the answer to your problem, you will usually find other pages and keyphrases affected at the same time.
If you see the effect on other keyphrases and on other pages as well as a buzz in the SEO community, you could be facing an algorithm change as the cause of your troubles.
Next, look at whether some change in the competitive landscape is the culprit.

Let me explain what I mean by this.

Search engines use a relative scoring system when evaluating competing pages - like grading on a curve in school. So, how well or poorly your competitors give attention to certain SEO factors actually influences the degree to which those factors are going to be important for that target keyphrase.

It can often be the case that you lose some visibility in the search results listing because your competitors have done something that significantly changes the rules of the game for that competitive landscape.

You can save months of trial and error tweaking the wrong things if you can figure out first whether and how your competitors may have affected the competitive landscape.

If you see some other competitors who have moved the same time you did while most others have remained the same, you should study those challengers closely and that will give you insight into how the competitive landscape has changed.

That, in turn, will tell you what SEO factors you need to give attention to.

At some point this summer, I may do a walk-thru of a case study that shows this concept in action with measurable results.
Next, check whether the Search Engine changed something in their data or algorithm.
Matt Cutts says there is at least one change per day to Google's search engine. Many of these may be interface changes but there are algorithm changes as well. See what he says in the video below.
Matt Cutts Video
One of the places you should check for possible algorithm changes in Google isMatt Cutts' blog.
The main indicator of an algorithm change being responsible for a change in ranking for your page(s) is that you should see a similar change on other pages in your site and on keyphrases unrelated to the target keyphrase and page in question.
An algorithm change is generally going to have a widespread impact not an isolated effect causing a drop in ranking, for example, on only one of your keyphrases or pages. So that's what you want to look for when determining if an algorithm change is the culprit.

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Home > SEO > Michael Marshall > How to Diagnose a Change in Rankings >
Article Tags: algorithm, diagnose, rankings, search engine changes, seo

About the Author: Michael Marshall
RSS for Michael's articles - Visit Michael's website

I have over 19 years experience in information technology covering a wide range of specialties including: web design, software engineering, e-commerce solutions, artificial intelligence, and Internet marketing. I have degrees in Linguistics, Philosophy and Theology.
I am also a contributing author to SEOToday.com, the premier website for SEM professionals, and a contributor to "Building Your Business With Google for Dummies" by Brad Hill. I am a frequent presenter at Ultra Advanced SEO Symposiums, a meeting of select masters of the search engine marketing industry, at Search Engine Workshops. I am also a certified instructor at the Raleigh-Durham-Chapel Hill Search Engine Academy, an SEO certification program approved by the US educational system.

Three SEO Tools I've created:

SEM SCOUT - Content Relevance
SEO Sniper - Keyphrase Research
SEO Recon - SEO Competitive Intelligence

Click here to visit Michael's website
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