H2 heading tags are HTML elements used for subheadings on a web page. In HTML, the H2 heading is identified as follows: #h2Here is a subheading#!h2
In terms of SEO, H2 heading help to structure the content hierarchically and provide context to search engines. A keyword-optimized H2 heading improves relevance for specific search queries. The H2 heading can be used multiple times, but must be used at least once per URL. The general headline structure should be designed sensibly and appropriately. Thus, the H2 heading should also fit coherently into the overall content of the URL.