One of the most critical, yet often overlooked, components of on-page SEO is the H1 tag. In the hierarchy of HTML heading tags, which range from H1 to H6, the H1 tag is considered the most prominent heading that often acts as the title. Adding H1 tags to your pages is not rocket science, though it may differ from website to website depending on the CMS installed for them. Here are 2 simple ways how to add H1 tags in WordPress and Wix. Now is the perfect time to review and refine your H1 tags.