On-page SEO refers to all the practices that you will do to optimize the content and other factors that will determine the SEO score and ranking in SERP.
Meanwhile, off-page SEO refers to all the practices outside your website like link sharing, associating with other website owners, getting backlinks, etc. that will eventually drive traffic to your website or blog.
Want to be proficient in SEO practices both on-page and off-page? Then check out the SEO course from Intellipaat to help you start your career as a certified professional.
Also, watch our YouTube video on SEO tutorial to gain more insights visually.