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What is the Digital Certainty Index® (DCI®)?

Modified on: Thu, 2 Jul, 2026 at 3:12 PM

Answer

The Digital Certainty Index® (DCI®) is a measure of the quality and potential impact of a site's digital presence, including:

  • A website's accessibility and usability
  • A website's credibility and trustworthiness
  • How well-poised a website is to respond to SEO challenges

The DCI Score gives you a comprehensive overview of issues across all aforementioned modules, highlighting issues that need to be fixed and providing recommendations on how to fix them.

Overview

The Digital Certainty Index® (DCI®) is a measure of the quality and potential impact of a site's digital presence, including:

  • A website's accessibility and usability
  • A website's credibility and trustworthiness
  • How well-poised a website is to respond to SEO challenges

A DCI Score of 100 means your website is in excellent condition.

Note: The Digital Certainty Index® (DCI®) is patented.

How the DCI Score is Calculated

The DCI Score is calculated based on a website's performance across three categories:

  • Quality Assurance
  • SEO
  • Accessibility

Each module makes up one third (33.33%) of the Overall DCI Score. Scores in the Quality Assurance, SEO and Accessibility modules contribute to the overall DCI Score.

DCI Scores

The sub-scores that contribute to the overall DCI Score are:

Quality Assurance Score

This score reflects a website's credibility and trustworthiness regarding its user-facing characteristics. Your website's Quality Assurance Score is determined by its performance in four subcategories:

  • Content Quality
  • Content Freshness
  • User Experience
  • Security

Learn more about the Quality Assurance Score.

SEO Score

This score is a measure of how well the user-facing and technical aspects of a site contribute to search engine optimization, and ultimately, higher rankings and organic traffic. Your website's final SEO Score is determined by its performance in the four sub-categories:

  • Technical
  • Content
  • User Experience
  • Mobile

Learn more about the SEO Score.

Accessibility Score

This score is a measure of how well a website tests against web accessibility standards set out in WCAG (Web Content Accessibility Guidelines) 2.1. Your website's Accessibility Score is determined by the number of success criteria a site fulfills under the three WCAG conformance levels (A, AA, AAA), along with performance in the categories WAI-ARIA authoring practices and Best practices.

Learn more about the Accessibility Score.

Where can I view my DCI Score?

DCI Overview

The DCI Overview can be is found within the Digital Certainty Index section on the main left-hand menu.

The Overview tab gives the DCI score details along with a progress graph for the selected site. You are also presented with the issues that need to be addressed to improve the score.

My Sites

The My Sites sub-menu shows the average DCI score for all your sites. It also shows the average QA Score, Accessibility Score and SEO Score for all sites.

A graph shows your progress in each DCI area. The graph allows you to select the scores you are interested in and compare scores over time.

A table is also shown giving details of the scores for each individual site.

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