I can't get to it, anyone else have the problem?

http://www.downforeveryoneorjustme.com/blender.org

?

Basically it's a website that checks whether another site is down.

Lol, worthless site. Its saying www.google.com is down... at least for me.
http://www.downforeveryoneorjustme.com/www.google.com

It's not a worthless site, just not an always-accurate site. It works by basically sending get requests from their host to the site in question. If they have a connection issue with the site, then it'll return that it appears down. It's no different than asking a friend if a site is down for them as well. It'd be better if they had like 20 servers in different locations on different ISPs, as then it'd be more accurate, but as-is it's fairly accurate most of the time. It's also why they say a site only appears down, not that it actually is down.

It's always my first stop when seeing if a site is down, second stop is sshing into work and checking from there.

I know what its doing, but frankly google.com should never be detected as down, in error.

http://www.websitenotworking.com/ is a better site. Blender.org is pingable, but still down.

It's back up now

Two things can cause it to report google is down:

1. Google may be blocking GET requests from downforeveryoneorjustme

2. There's a line problem somewhere between downforeveryoneorjustme and Google

Only the first one is an error.

As to your site: definitely adding it to my list, but I don't see much point in it including ping. ICMP isn't as rich as a GET request. ICMP is easily rejected (in fact these forums reject ICMP) and doesn't operate on http, so if something wrong with the web server, ICMP will still report all is dandy (and something going wrong with the webserver is probably more likely than an actual connection problem). Should stick with just a GET request instead of GET and ping.

Edit: dang new post editor screwing with where my new line goes