MyBB Community Forums

I doubt this is something important, but oh well, curiosity kills me:


My forums are on the root folder, www.example.com.
Sometimes, apparently after an absence, when I go to www.example.com, for about half a second, the URL is www.example.com/SOMETHING
Where SOMETHING is short (around 5 letters?) and in capital letters. A good example would be www.example.com/AFSYU, you get the idea. I believe it is random every time it happens too.
Then, it goes to www.example.com like normal.
I cannot go back to such URL nor find it in the history.

Edit: It is not necessarily Capital Letters.

If it helps, you can click on address bar and press Ctrl+z until you find it!
Disable 'Meta redirection' and 'JavaScript', reload the page, and check out the source code. Or if you are using Firefox, you can monitor redirection process using Firebug's Net option. Anyway, it seems not to be related to MyBB.

Actual URL so we can maybe see it for ourselves...??