Which tag is used for the second-largest heading in HTML?

The tag used for the second-largest heading in HTML is indeed the <h2> tag. In HTML, headings are defined using six levels of heading tags, ranging from <h1> to <h6>. The <h1> tag represents the largest heading, usually used for the main title of the document or a major section, while <h2> is the next level down, facilitating a hierarchical structure for content organization.

This approach provides a clear outline of content, making it easier for both users and search engines to navigate and understand the importance of different sections on a web page. The distinction in heading sizes is essential for accessibility and search engine optimization, as it helps convey the structure and significance of the information presented.

In contrast, <h3> and <h4> represent smaller headings and further subdivisions of content, while <h1> is reserved for the primary heading, reinforcing the position of <h2> as the secondary level of heading.