rel-prev is the use of the HTML rel attribute on a hyperlink to the page previous to the current page with the value of "prev" to provide a way for consuming code to discover that link and navigate to it to show content previous to the current page; like a monthly archive page linking to the previous month, or a link from a homepage with a stream to an archive page of previous posts in the stream.
Note: You might also encounter rel="previous", this should still be supported by consumers for compatibility purposes. ([WHATWG HTML5)
- Consuming code implementation: http://mirror.rhythmandpoetry.net/indieweb-bestnine/ - Indieweb BestNine - a site for crawling your site and finding your best nine photos according to the number of likes they have received
- archive navigation