What Is On-Page SEO? Definition
All SEO work done directly on your website: technology, content, meta tags, structure and internal linking.
What is on-page SEO?
On-page SEO covers all optimization work carried out directly on your website, including technical, content and structural changes.
Example: a company page about heat pump installation has the generic title "Home" and no clear headings. After on-page work, the page has a descriptive title tag, a meta description that summarizes the offer, one H1 with sub-sections below it, and internal links to related service pages.
Key on-page factors
- Title tags and meta descriptions – optimized page titles and descriptions
- Heading structure – a logical H1 to H6 hierarchy
- Keyword optimization – relevant search terms used naturally
- Internal linking – connecting your content with a clear strategy
- Image optimization – alt text, compressed formats, lazy loading
- URL structure – clear, readable URLs
These factors help search engines understand what a page is about and for which queries it is relevant. Clear headings and well-structured copy also make it easier for AI search systems to pick up and quote a page. Technical SEO is a separate area: it makes sure search engines can crawl and index the site at all, while on-page SEO works on the content and HTML of each page. Our guide to content formats for AI search shows how page structure affects AI answers, and our on-page SEO service covers the hands-on work.
Frequently asked questions
What is on-page SEO?
On-page SEO covers all optimization work carried out directly on your website. It includes technical, content and structural changes such as title tags, headings, keywords and internal links.
Why does on-page SEO matter for SEO?
On-page factors tell search engines what a page is about and which queries it answers. A clear structure also makes it easier for AI search systems to understand and quote the page.
What is an example of on-page SEO?
A service page titled "Home" gets a descriptive title tag, a meta description, a clear H1 with sub-headings and internal links to related pages. All of these changes happen on the page itself.
How does on-page SEO differ from technical SEO?
Technical SEO makes sure search engines can crawl, understand and index a website. On-page SEO optimizes the content and HTML of the individual pages.