RSS feed submission is an off page SEO technique. It refers to the submission of RSS feeds to RSS submission directory sites to improve the SEO of your site. RSS stands for Rich Site Summary and is also known as Really Simple Syndication.
An RSS feed generally contains updated web pages, videos, images, links and more. It is a format to deliver frequently changing web content. The users who find these updates interesting can subscribe your RSS feed to receive timely updates from their favorite websites. Thus, it helps increase traffic to your website.