There was a post about it recently (advising that there would be downtime) - they've upgraded. It's considerably quicker now!
Apologies for the HN outage. We think it may be related
to the new server. This could take a while to fix.
[1] https://twitter.com/paulg/status/303350671460147200Just because the switch-over went smoothly doesn't mean that normal operations didn't fall apart later on.
Bonus points if you do actually. Their search API is limited to 100 a day, which is not a lot.
Alternatively you know... you can just accept that the service will be down for an hour or two and most people wouldn't even notice without this post.