I have been having trouble accessing the site every day. I have checked other browsers, cleared my cache and the issue still occurs. My main browser is Chrome. I typically get in to the site very late in the evening (after 10p - DST time zone) or in the middle of the night (1a-3a). The screenshot is below. Can anyone explain?
Next time it happens try checking a service which tests to see if the site's up, such as IsUp.Me. You may also which to try a different browser, in my experience Chrome gives up much quicker on connecting to sites. If WordPress.SE keeps failing regardless of browser and IsUp.Me (or another similar service) shows that the site is up, then I'd guess your ISP's DNS servers are having issues. In which case, you might want to try a 3rd party DNS server such as OpenDNS.
We tried to write a canonical article on "why can't I get to this website?" at
Can you give that a shot?
And yes, it would be ironic if you couldn't get to Super User either.. so here's a link from Google Cache
and from Coral Cache