Best DNS Server -> Increase Internet Speed

List of Top 10 Best DNS Server : To increase Internet Speed
  1. Google:
    Preferred DNS server – 8.8.8.8
    Alternate DNS server – 8.8.4.4
  2. Norton DNS:
    Preferred DNS server – 198.153.192.1
    Alternate DNS server – 198.153.194.1
  3. Comodo DNS:
    Preferred DNS server – 8.26.56.26
    Alternate DNS server – 8.20.247.20
  4. DNS Advantage:
    Preferred DNS server – 156.154.70.1
    Alternate DNS server – 156.154.71.1

  5. Public-Root5:
    Preferred DNS server – 199.5.157.131
    Alternate DNS server – 208.71.35.137

  6. ScrubIT3:
    Preferred DNS server – 67.138.54.120
    Alternate DNS server – 207.225.209.77
  7. Level3:
    Preferred DNS server – 209.244.0.3
    Alternate DNS server – 209.244.0.4
  8. OpenNIC4:
    Preferred DNS server – 69.164.208.50
    Alternate DNS server – 216.87.84.211
  9. SmartViper:
    Preferred DNS server – 208.76.50.50
    Alternate DNS server – 208.76.51.51
  10. OpenDNS:
    Preferred DNS server – 208.67.222.222
    Alternate DNS server – 208.67.220.220

Steps to change DNS settings
STEP 1 : Goto CONTROL PANEL ===> Network and Sharing Center 
STEP 2 : Click on Adapter ( eg. Wifi- WLan Adapter , Ethernet – Local Area Connection ) 
STEP 3 : Select “ Internet Protocol Version 4(TCP/IPv4)”; Click on Properties
STEP 4 : Select the option “ Use the following DNS Server Address” ===> Put the correct DNS Server address value from above