Do you have swap enabled?
Since, Nodebb is a Single page application. I want to know if there are any out of the box methods used for SEO. My forum is indexed by google. But there seems some problem for google to fetch all pages in my forum.
Do i need to manually add prerender.io to my nodebb app?
You shouldn't have to do anything. It's crawling all of my pages fine. How do you know it's having trouble crawling your site?