On-page SEO is not a one-time effort and remains important for search engine optimization. It involves optimizing both on-page content like keywords, headings, and page speed, as well as technical elements of the webpage. While some technical skills may be needed, on-page SEO is not highly technical for most websites. Both on-page and off-page SEO strategies are important, with on-page SEO providing the foundation to support off-page link building and outreach efforts.