I usually place an app_offline.htm in my root directory when I am releasing a website to a production environment. However sometimes if there has been a few big changes to the site, I would like to click around first to make sure it’s stable without allowing access to anyone other than me.
As far as I am aware this isn’t possible, but I’m hoping someone has a neat solution…
The solution has to include if someone has a deeplink into the site, so using a default.htm/asp page in the root won’t do the trick unfortunately.
I agree with the staging environment answer above, but otherwise here’s one possible approach: Temporarily block all IP addresses besides your own. This can be achieved through IIS Directory Security configuration, or programmatically in any number of ways
You can redirect all the non-authorized users to an Under Construction page of some sort. Meanwhile, you can happily browse the site from your IP. When the site is vetted, you remove that IP restriction and the site becomes available to the world at large.