Just wondering what the significance of the word Apache is, with some numbers after it, that appears when a web page or server is down.

Thanks!

Apache is the name of the web server software and it's their error message that you are seeing.

See more here: Apache HTTP Server - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Apache_HTTP_Server)

Thanks, NeedKarma! Very informative answer!

Always ready to help an expert. :)