On-page SEO refers to the process of optimizing individual web pages in order to rank higher and earn more relevant traffic in search engines. This includes optimizing the content and HTML source code of the page, as well as ensuring that the page is free of errors and user-friendly.
An on-page SEO checker is a tool that analyzes a webpage and provides recommendations for how to optimize its on-page elements for search engines. These tools can be helpful for identifying issues with a webpage’s content, structure, and formatting, and for suggesting ways to improve its visibility and ranking in search results. Some common on-page elements that an on-page SEO checker may analyze include the page’s title tag, header tags, meta descriptions, and keyword usage. The goal of using an on-page SEO checker is to improve the overall quality and relevance of a webpage, and to increase its chances of ranking well in search engine results.