Hello, we have had an SEO audit that has brought up thousands of duplicate H1 tags. When I investigated it was where the page had an H1 title but also had a tag with the same words. For example, this blog is titled 'world alzheimers day' and has 'world alzheimers day' as a tag. So, my question is are tags classed as H1 or H2?
It depends on how the developer classifies the "Tag" in their code. Usually, Tag should be classified as H1 Tag, and the SEO audit you are using also automatically identifying your blog title as an H1 tag. I believe that is what causes the duplicating issue. Hope it helps.