Have a blazing fast net connection but find it still takes ages to load a website? Blame the slow DNS servers of your ISP. Alternative and free DNS services like Open DNS and Google Local DNS are much faster, more reliable, and safer compared to the DNS servers used by your ISP. They’re also handy if your operator’s DNS server is down.

While none of the Android devices come with an option to change the DNS server used by your device when on a 3G or 4G network, an application in the Play Store  — SetDNS (free) — is capable of doing so, provided you have root access. Here’s what to do.