Hmm, I'm just curious, is there a way to allow only myself access to the site domain? I want to update my site, but I don't want visitors to be able to access the site during that time. E.g "Server not found", "403 forbidden" etc Is there a way to do that?
look for htpassword when you google. If you are using a script, alot of them have "Mantinance Mode" that says the site is offline. Additionally if you are on your own server, you can always deny all, and whitelist your IP
If your IP isn't dynamic do that. Otherwise you can use this http://www.zubrag.com/scripts/password-protect.php or the method allowed in your hosts control panel.