robots.txt – Controlling Search Engine Crawling with Precision

The HTML heading structure uses the <h1> to <h6> tags to create a hierarchical outline of content on a web page. These headings support both readability for users and semantic clarity for search engines and assistive technologies.

Hierarchy and Purpose:

<h1>: Main headline – should be unique per page and reflect the primary topic.
<h2>: Major subsections under the H1 – like chapters or sections.
<h3>: Subsections within an H2 – typically used for smaller segments.
<h4>–<h6>: Additional depth for complex content structures.

Example Structure:

<h1>SEO Basics</h1>
  <h2>What is SEO?</h2>
  <h2>On-Page Optimization</h2>
    <h3>Title Tag</h3>
    <h3>Meta Description</h3>

Best Practices for SEO:

Only one H1 per page, preferably at the top.
Avoid using headings only for styling (e.g. using H2 for visual size).
Maintain logical hierarchy – don’t skip levels (e.g. H2 → H4).
Headings should include relevant keywords and describe the following content.

Note: A well-structured heading hierarchy improves accessibility, supports Google’s understanding of content themes, and is key to features like Featured Snippets and FAQ sections.

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