The H1 is the main visible title of your page. It helps Google understand your content's topic and structures information for users.
Many confuse the title tag and H1. They have different roles:
Each page should have exactly one H1. Multiple H1s create confusion for Google.
The H1 and title should be different but complementary. They target the same topic with varied wording.
Title
Plumber London - 24/7 Emergency | PlumbingExpert
H1
Your Plumber in Central London
Your main keyword should appear in the H1, preferably at the beginning, in a natural way.
Headings should follow a logical hierarchy without skipping levels.
H1: Complete SEO Guide
H2: On-Page Optimization
H3: Meta Tags
H3: Content Structure
H2: Technical Optimization
H3: Loading Speed