Let me go back to the basics. The title tag is a section of HTML code that every page should have. It declares what the page’s title is. For example, here’s the title tag for the Search Engine ...

“If we think your title and description ... Behind the scenes, in the HTML code, the headline is wrapped in an H1 tag. This page has a headline and several sub-headings to break up the copy ...

In short, the number of Google search results showing with the HTML title tag on the SERP dropped 77% on average and when that happened, roughly 75% are utilizing the H1 instead of the HTML title tag.