On-page optimization, or on-page SEO, refers to optimizing individual web pages to improve their ranking and visibility in search engine results pages (SERPs). On-page optimization involves various techniques and strategies that optimize the website's content, structure, and HTML source code to make it more search engine-friendly and user-friendly.

The primary goal of on-page optimization is to provide users with the most relevant and informative content for their search queries. It involves optimizing various on-page elements such as title tags, meta descriptions, header tags, keyword usage, image optimization, internal linking, and more.

Here are some key on-page optimization techniques:

1. Keyword research and optimization - Identify relevant keywords and phrases that users search for and optimize the content accordingly.

2. Title tags and meta descriptions - Optimize the title tags and meta descriptions with relevant keywords and a compelling description that attracts users to click on the link.

3. Header tags - Use header tags (H1, H2, H3, etc.) to structure the content and highlight the main points.

4. Image optimization - Optimize the images with relevant keywords and compress them to reduce the page load time.

5. Internal linking - Create internal links between related pages on the website to improve user experience and help search engines understand the website's structure.

6. URL structure - Use descriptive, keyword-rich URLs that help users and search engines understand the page's content.

7. Content quality and relevance - Create high-quality, informative, and engaging content relevant to the user's search query.

On-page optimization is a crucial aspect of SEO and can significantly impact the website's ranking and visibility in search engine results pages. It helps ensure the website is relevant, user-friendly, and search engine-friendly, leading to increased traffic, engagement, and conversions.