Heading Structure: How to Use H2 and H3 Tags
Use one H1 for the post title, H2 headings for the main sections, and H3 headings only when a section needs sub-parts. Headings should describe their content so a reader who skims can find the part they need.
Search engines use headings to understand how a page is organized, and people using screen readers rely on them to navigate. Getting the hierarchy right helps everyone and takes little effort.
What the heading levels mean
HTML has six heading levels, H1 through H6, that form an outline. Think of them like the numbered sections of a document.
- H1: the title of the page. There is normally one per page.
- H2: a main section of the page.
- H3: a subsection of an H2.
- H4 and below: deeper subdivisions, rarely needed in blog posts.
Most blogging platforms set the post title as the H1 automatically. If yours does, start the body with H2.
Skipping levels, such as jumping from H2 to H4, makes the outline confusing. Move down one level at a time.
How many headings to use
For a post of 1,000 to 1,500 words, four to seven H2 headings is a comfortable range. That gives each section a couple of short paragraphs, which keeps the reading rhythm steady.
Use H3 only when a section has parts that deserve separate labels, such as a list of methods that each need explanation. If a section has no sub-parts, do not invent them.
More headings are not better. Too many break the post into fragments, and too few leave a wall of text. Let the content decide.
Write headings that say something
A heading should tell the reader what they will learn in that section. “Details” or “More information” tells them nothing. “What to put in the first sentence” tells them exactly.
Test the headings by reading only them in order. You should get a clear sense of the whole post. This is how many visitors read: they scan the headings, then stop at the section that matches their need.
Phrase headings the way the reader would think of the topic. Sometimes a question works, such as “Does it affect rankings?” Other times a statement works better, such as “Expect Google to rewrite it sometimes.” Mix them naturally, and do not force a question into every heading.
Where keywords belong
It helps to include the main keyword or close variations in some headings, since headings carry weight for search engines. Do it where it reads naturally. A heading that repeats the keyword awkwardly makes the page worse.
A better approach is to use the language of the questions people ask. If searchers ask “how long does it take,” a heading with those words may match more searches than a generic label.
Do not put the exact main keyword in every heading. Variety signals real coverage of a subject.
Keep the hierarchy consistent
Parallel sections should use parallel headings. If three sections describe three methods, word them in a similar way: “Method one: autocomplete,” “Method two: related searches,” and so on. This makes the structure predictable.
Do not use heading tags just for formatting. If you want bigger or bolder text that is not a heading, use a style or a bold tag instead. Misusing headings confuses the outline for assistive tools.
Accessibility and readability
Screen reader users can jump between headings to find content. A logical hierarchy lets them skip to the part they want, just as sighted readers scan. Clear headings are one of the cheapest accessibility improvements available.
On a phone, headings also break up the page and give the eye a place to rest. Combined with short paragraphs, they make a post feel lighter.
Check headings after writing
When your draft is done, view only the headings and review them. Is the order logical? Do any sections overlap? Is there a missing question a reader would ask?
Some SEO plugins and browser extensions display the heading outline of a page. Use one to see the structure at a glance and spot skipped levels or duplicate headings.
A small example outline
Here is how a post on meta descriptions might be outlined. The H1 is the title. H2 sections cover what it is, how long it should be, whether it affects rankings, what to include, and how to write it. Under “what to include,” three H3 headings could cover the topic, the audience, and the payoff.
Read the outline top to bottom and you can tell exactly what the post says before reading a single paragraph. That clarity is what you are aiming for every time. If you cannot summarize the post from its headings, rewrite them.
Common heading mistakes
Writers often use headings as decoration, repeating the title or using clever phrases that hide the content. Others write a heading every two sentences. A third mistake is using bold text as a fake heading, which gives screen readers and crawlers nothing to work with. Fix these and the outline improves at once.
When a heading can be a question
Question headings suit posts built around reader questions, such as FAQs and guides. They also match how people phrase searches. For process posts, a plain noun phrase or an action works better, such as “Add the link” or “Check the result.” Choose whichever makes the section easier to find at a glance.
What to do next
Open your three most visited posts and list their headings in order. Look for vague labels, skipped levels, and sections that could be merged or split.
Rewrite vague headings to describe their content, and fix any level jumps. Then make the same pass on the next post you write before publishing, and keep the outline as your first draft, filling in each section after.