Heading tags, which consists of H1 to H6 HTML elements, add headings and subheadings within your content, making your whole content easy to understand for both users and search engines. Using a single H1 heading tag within your webpage content is a good practice. H1 tag comes at the top or start of body content and others like H2, H3, or more should be leveraged in subheadings for further paragraphs as per the need.