What is Google Public DNS?
Google Public DNS is a free, global Domain Name System (DNS) resolution service, that you can use as an alternative to your current DNS provider.
Google URL Shortener at goo.glis a service that takes long URLs and squeezes them into fewer characters to make a link that is easier to share, tweet, or email to friends. The core goals of this service are:
Stability – ensuring that the service has very good uptime
Security – protecting users from malware and phishing pages
Speed – fast resolution of short URLs
Google URL Shortener is currently available for Google products and not for broader consumer use.