Refers to the practice of trying to improve efforts geared towards marketing that occurs off of your site.
Off-Page includes social media, sites linking to your domain, etc.
For the most part, off-page optimization is out of your control, as you can’t determine what people are sharing or posting.
However, by creating a steady stream of useful, informative content, you increase the chances that someone will identify with your content, and then share it with their peers.
Off-Page Optimization are actions taken to improve a website’s popularity outside of your own website. This is the number of quality links you have pointing to your website and having your website mentioned as much as possible with guest blogging, social media and influencer marketing.