Breadcrumbs SEO: Breadcrumbs are links that allow a user to track their path from the page they are currently viewing to the home page of your website. They appear close to the top of your page and reflect the structure of your site.
H tag: The header tag, or the <h1> tag in HTML, will usually be the title of a post, or other emphasized text on the page. It will usually be the largest text that stands out. There are other header tags in HTML too, like an h2, h3, h4, etc.