When you perform an on-page SEO check, you also need to make sure that the internal link network is properly optimized, with adequate anchor text and tags.
The problems that may arise regarding the HTML code have to do with its validation according to the w3c standards . To quickly obtain the verification of SEO criticalities at the HTML code level you can use https://validator.w3.org/ . By entering your site in the search box, you will obtain the list of all the errors present.
How to do SEO audit: the tool for html validation
When we talk about SEO checks that have to do france phone number with user experience , we are referring to those problems that slow down the site and make it unuser-friendly. A slow site that takes too long to load content will make you lose customers. Through your SEO Audit you can find and correct these errors. The appropriate SEO tests can help you discover that:
Your images are not optimized . An online tool that will allow you to compress your images while still maintaining good quality is Tinypng .
You are not using HTML heading codes correctly to structure your content. To check the correct use of html headings I recommend you to download this extension for FireFox: Headingmaps .
You are having display problems due to javascript and cookies .
Browser caching has not been enabled.
You could save time by compressing some resources.
The way your content is laid out, your site is not usable.
Your site does not have a responsive layout .
A tool that allows you to perform all these checks is PageSpeed Insights . Depending on the number of parameters respected by the entered site, a score ranging from 0 to 100 will be assigned.