What does connection timed out mean?

So I visited this site, answers.yahoo.com, on my iphone (I'm on my computer now) and it took a really long time to load. When it did, it just was blank and said "connection timed out" and there wasn't any links that I could click explaining that. Has anyone else experienced this problem? What does it mean?

Everyone got that message today. The site was completely shut down.

When you hit Enter, the code fails to reach the database. Your computer doesn't know what to do so it says "timed out".

My iphone gone totally blank won't turn on
its fully charged, connected to computer
says its timed out, can anyone help?
please