Headings: The Outline AI Reads First

Technical meaning. Headings are HTML tags (<h1> through <h6>) that mark the titles and subtitles of a page in order of importance. The <h1> is the main heading, the single most important statement of what the page is about, and the smaller numbers are sub-sections beneath it.

In plain English. Headings are the outline of your page, the way chapter and section titles organize a book. A reader skims them to understand the shape of things. A machine does the same: it uses your headings to figure out the structure of what you offer and which parts matter most.

Why it matters. When there is no clear main heading, or when headings are used just to make text big rather than to organize meaning, AI has a harder time understanding your page. Good headings spell out your services and your story in a structure both people and machines can follow.

How it shows up in real life. “No H1 found” means the page never states its main point in a heading. The fix is to give each page one clear main heading and logical subheadings, which also makes the page easier and friendlier for real visitors to read.