Hi! (I don't know if netbsd-docs@ is the right list for reporting a problem with the website, so please correct me if I should report this elsewhere.)
I noticed that when I access the NetBSD website via HTTP http://netbsd.org then the Developers > Cross-reference link does not work (i.e., connection refused): http://nxr.netbsd.org/ However, if I access the NetBSD website via HTTPS https://netbsd.org then the Developers > Cross-reference link does work: https://nxr.netbsd.org/ So, it seems that the link uses the scheme of the page it's on, but the nxr.netbsd.org service is only available on HTTPS, not HTTP. Note that this can be a little tricky to observe because in a modern web browser the history or auto-complete feature will automatically try HTTPS if it has ever succeeded at HTTPS for a host (I'm guessing; I don't know the actual heuristic each browser uses), so you'd likely have to start with a clean browser session that has never connected to nxr.netbsd.org via HTTPS in order to see this problem. Thanks, Lewis