Ranking agreement is a term used in the world of search engine optimization (SEO). It refers to the level of agreement between different search engines on the order in which they rank search results. This is one of the most important and frequently discussed topics in the SEO community, and understandably so. After all, rankings are what determine the visibility of a website or page on search engines.
When we talk about ranking agreement, we’re basically asking how much overlap there is between the ranking positions assigned by different search engines to the same search query. The greater the degree of overlap, the higher the level of agreement. The lower the overlap, the lower the level of agreement.
Why is ranking agreement important? For starters, it helps us determine which search engines are the most reliable and consistent. If two search engines have a high degree of ranking agreement, it’s safe to assume that their algorithms are closely aligned and that their rankings are reliable. On the other hand, if two search engines have a low degree of ranking agreement, it could indicate that their algorithms are significantly different or that one or both of them are unreliable.
Ranking agreement is also important because it gives us insight into how search engines rank web pages. If we know that two search engines have a high degree of ranking agreement for a particular search query, we can assume that the factors that influence rankings for that query are similar for both engines. This can help us optimize our content to rank higher across multiple search engines.
So, how do we measure ranking agreement? There are several methods, but one of the most common is to use a statistical measure known as Kendall’s coefficient of concordance. This measures the degree of agreement between two or more rankings on a scale from 0 to 1, where 0 indicates no agreement and 1 indicates perfect agreement.
Another way to measure ranking agreement is to use tools like SEMrush or Ahrefs, which allow you to compare rankings for the same keywords across multiple search engines. This can give you a sense of how much overlap there is and which search engines are the most closely aligned.
In summary, ranking agreement is an important concept in SEO that helps us understand which search engines are reliable and consistent, and how they rank web pages. By measuring ranking agreement, we can optimize our content to rank higher across multiple search engines and improve our overall visibility online.