For websites, a page heading is the text that appears at the top of a page above the body text.
When you add a title to a photo, you can also add detailed textual content that educates visitors and is appealing to search engines. Within that content area, you can include headings.
You can have these headings appear automatically based on the title of the photo. Or you can add them manually.
When added automatically, the page title and the page heading with both presumably include targeted keywords. And if that content isn’t added manually, the automation can help you create SEO content more quickly and easily.
Alternatively, you can manage the headings manually. This option allows you to optimize photo titles and photo headings separately if you want to provide more targeted guidance to search engines.