Google has changed the URL of its encrypted search service to https://encrypted.google.com. In past, this service was hosted on https://www.google.com. Many schools and institutes had reported problems with the older encrypted search site as they were unable to stop students and employees from searching filtered items. The encrypted search securely and privately searches the Google’s search index in such a manner that the network administrator can not track or filter search queries.
The organizations, using Google Apps, were also unable to block the encrypted search website, as it would have blocked Google Apps tools. Gmail and many applications of Google Apps are available only with the HTTPS connection. Google reported this problem on its official blog:
So to prevent students from bypassing their filters, some schools are blocking encrypted search. However, a side effect of this action is that it also blocks other services hosted at Google’s secure URL, including Google Apps for Education, and many of our other services which require authentication to keep information safe. [ … ]
And today, Google solved this problem by introducing a new separate sub-domain name for the encrypted search, encrypted.google.com. Now, the network administrators can block Google’s SSL search without affecting access to other services.