@Moon: yes, I also think it's a bad header

@Elouan: just a normal nginx reverse proxy, something like:

location /ubooquity {

This won't make it any faster though, not sure what you mean with accelerate browsing...

Ah, sorry, meant to say I used kill -3.

Forgot to report back here, but I figured out what the issue was. I had the database file on an nfs share, and that turned out to freeze the whole thing once there was too much updates to it going on.

Thanks!