The first heading on your site should be the one that best describes the content of your page. Sometimes this is your logo–but most of the time it's not. Usability: The tags <h1> to <h4> should be used to organize information and orient users.

Can an image be a H1?

“If you have an image as the page's H1 tag, keep in mind that the H1 is one of the most important clues for a search engine to determine what the page is about, so consider using text instead of an image or at least using descriptive ALT text.”

Is H1 necessary?

What is the Purpose of a H1 Tag? The H1 tag is important for SEO, accessibility and usability, so ideally, you should have one on each page of your site. ... Usually, the H1 tag will be the title of your blog post or article and it should give the reader a strong sense of what they are going to read.