AI engines use heading hierarchy to understand what your page is about. A clear H1 → H2 → H3 structure helps Gemini, Perplexity, and ChatGPT accurately summarize your content and identify the main topics covered.
When AI engines cite long-form content, they often reference specific sections by their H2 headings. Clear, descriptive H2s make it easier for AI to pull the right section into an answer — and give proper attribution.
Jumping from H1 to H4 makes it harder for AI engines to build a content outline. They may misinterpret section boundaries, leading to inaccurate summaries. Always follow sequential heading order for the clearest content structure.