H1 vs H2 vs H3: Clear Rules (No Myths)

What headings actually do

Headings help search engines understand structure and hierarchy, readers scan and navigate content, and you organise ideas clearly.

They are structural tools, not ranking tricks.

The role of the H1

The H1 is the main heading of the page. It should describe the primary topic of the page, match the page’s overall purpose, and appear once in most cases.

Think of the H1 as:

The title of the document, written for humans.

It does not need to exactly match the page title, contain keywords unnaturally, or be overly long or clever. Clarity matters more than optimisation.

The role of H2s

H2s break the page into major sections. They support the main topic, introduce subtopics, and help readers scan the page. Each H2 should represent a clear subsection of the page’s main idea.

If the H1 answers “What is this page about?”, then H2s answer “What are the key parts of this topic?”

The role of H3s (and beyond)

H3s are used to break down H2 sections further and group related ideas within a section. They should only be used under an H2, not on their own.

You don’t need to use H3s on every page. Use them when they help clarity — not because you feel you “should”.

Common myths to ignore

You may hear that you can only have one H1, that headings must include keywords, or that heading order affects rankings directly.

In practice:

• Structure and clarity matter far more than strict rules
• Search engines are flexible
• Humans are not

Write for humans first.

A simple hierarchy to remember

Most pages work well with one H1, several H2s, and occasional H3s.

If the structure makes sense when you read it out loud, you’re doing it right.