Digisitecheck SEO Audit Tool measures if your website's code is optimized and compliant with search engine guidelines. Website code optimization, or On Page SEO is one out of several factors that influence your website's position in search engine result. Examples of other factors include: incoming links from other websites, online ads like Google Ads, or social media presence.

Tools like Pagespeed Insight concentrate on how quickly your page loads. In Digisitecheck page load time is only a small part of the result and the score you receive, code optimization and keyword analysis are the dominant factors on the final score.

In order to fix the issues from the SEO audit you have to update the HTML code and revise the text content of your website, as outlined in the audit. After making the changes check the website again to find out if all the issues were fixed.