Heading tags don’t just make the content on a webpage better organized and easier to read. They are also critical to good technical SEO. This refers to the search engine optimization (SEO) steps you take to make your website easier for search engine bots to crawl and index web pages (basically “read” the pages and categorize them accordingly). If bots can’t crawl a page, they can’t rank it.
If you have headings on your page and Google sees that all of them are equal in importance, then it will choose one for you based on what it deems to be most relevant. However, if you use headers with varying levels of importance, then this allows Google to rank your pages more accurately according to relevance (i.e., how useful or interesting they find each page).
Nick Berns is a web developer & SEO specialist.