@Panda It’s the best it’s ever been to be honest. I’ve used a myriad of systems in the past - most notably, WordPress, and then Flarum (which for SEO, was absolutely dire - they never even had SEO out of the box, and relied on a third party extension to do it), and NodeBB easily fares the best - see below example
It was painful to say the least - as it turns out, there was an issue in NodeBB core that prevented spiders from getting to content, which as far as I understand, is now fixed. SEO in itself is a dark art - a black box that nobody really fully understands, and it’s essentially going to boil down to one thing - “content”.
Google’s algorithm for indexing has also changed dramatically over the years. They only now crawl content that has value, so if it believes that your site has nothing to offer, it will simply skip it.
Seems to be better with some scaling fix for redis on redis.conf. I haven’t seen the message yet since the changes I made
# I increase it to the value of /proc/sys/net/core/somaxconn
# I'm uncommenting because it can slow down Redis. Uncommented by default !!!!!!!!!!!!!!!!!!!
#save 900 1
#save 300 10
#save 60 10000
If you have other Redis optimizations. I take all your advice
The performance of the replica NodeBB install was painfully slow. After much searching and hair pulling, I found that the indexes seemed to be missing - a point which is referenced by NodeBB themselves here