The Visibility Index Score is a performance score of a site measured by Search Terms within specified Search Term Groups.

We give each search term a score based on its search engine position from 1-100 (see graph below). An average score is then given to the search term group based on all the search term scores contained within it. The group scores are then averaged to give the site an overall Visibility Score, this performance score is marked out of 100.

100 is the highest possible score a site can obtain. To gain a score of 100, a site would need to be position one for every single term within the visibility index.

If a site is position 10 for a specific term it gets a score of around 63 (see graph below).

The scoring system is based on a study of click-through rate with additional “opportunity” values. Click-through rate decreases as you go through the SERPs, and this is why the scores show such exponential decay as positions decrease. However, sites still obtain an index score value despite a lowly position. So even if a site is positioned on page 5, there will be little click-through rate, but an opportunity for improvement, the score will reflect this.

Indexes can be created to gain a more insightful understanding of where you stand amongst your competitors. The indexes that are created to compare your site against competitors compare where your competitors stand based on the exact same terms that you are tracking for your site. This creates a level playing field allowing visibility on who performs the best for your targeted terms.

Compound Indexes can also be created in Compound Workspaces to compare global performance and further comparison of indexes against indexes.