What is Header Tags (H1–H6)? - Definition & Meaning Simplified

Header Tags (H1–H6)

Header tags (H1 through H6) are HTML elements used to establish the semantic structure and topical hierarchy of a webpage. The H1 tag acts as the primary title and the strongest on-page relevance signal, while H2s and H3s organize subtopics. Search engine crawlers rely heavily on header tags to quickly scan a page and understand its content depth without having to process every single paragraph. A flawlessly optimized page uses exactly one keyword-rich H1, followed by a logical, nested sequence of H2s and H3s that directly answer the secondary questions related to the user’s primary search intent.

Header Tags (H1–H6) Simplified

Header tags are the invisible code used to create the large, bold titles and subtitles on a webpage. They break long articles into easy, to-read sections for the user, and they act like an outline that helps Google understand exactly what the page is about.