The World's Largest Internet Security Network

Trusted by millions of homes, businesses and schools, it’s the easiest way to control
your Internet experience.

Cloud-delivered network security for any device, anywhere, anytime.

The safest, smartest, fastest and most reliable DNS on the planet.

The most trusted brands choose OpenDNS

  • BP
  • Nvidia
  • Xerox
  • Romanos Macaroni Grill
  • George Washington University
  • Underwriters Laboratories
  • Specialized
  • Coldwell Banker Prime Properties
  • Eastern Mountain Sports

New at OpenDNS

  • Extend FireEye’s threat protection


    Learn how the integration of FireEye with OpenDNS extends Advanced Threat Protection beyond the network perimeter.

  • Predictive security everywhere

    Secure every device on and off
    the network from emerging threats.

  • Rethinking Cyber-Security in the Age of Relentless Attacks

    Learn why prevention is no match for persistence and how to take a more pragmatic approach to security.

OpenDNS Blog

  • Patrick Colford

    21 Aug

    All the Phish in the Sea

    by Patrick Colford

    Every week, we hear of new threats to computer security: Cryptolocker, Heartbleed, Zeus. With so many different names and kinds … of threats, it can be daunting to keep track of all the different ways that a computer can be…

    Read More
  • Jeff Samuels

    19 Aug

    SC Magazine Review Calls Umbrella “One of the Most Powerful Network Security Services Available”

    by Jeff Samuels

    Since the launch of Umbrella over two years ago, OpenDNS has been focused on one goal that inspires the work of … every department at the company: to provide compelling security value to our customers. Customer feedback is our…

    Read More
  • Kara Drapala

    1 Aug

    OpenDNS Is Heading to Vegas!

    by Kara Drapala

    It’s no secret that the end of July/beginning of August means one thing in the world of information security: it’s … party time. Hackers, suits, and sheep alike are heading to Vegas for the conference trifecta of Black Hat,…

    Read More
  • Adrienne Merrick

    22 Jul

    Spoiler Alert! You Are Under Attack

    by Adrienne Merrick

    You may have heard that targeted attacks are on the rise—businesses are constantly under attack. The challenge that security professionals … face is too much noise, and at the end of the day, it’s pretty hard to determine…

    Read More
  • Chris Frost

    16 Jul

    What Is the Difference between Authoritative and Recursive DNS Nameservers?

    by Chris Frost

    DNS Overview The Domain Name System (DNS) is one of the most essential parts of the Internet’s infrastructure. By … using DNS, you can connect to a website like without having to know the website’s IP address. (After…

    Read More
  • Ashley Williams

    11 Jul

    Creating a Culture of Security Awareness

    by Ashley Williams

    If you follow cyber security news these days, you’ll find that there’s a lot to keep up on. Threats exist … everywhere. Just in 2014 alone, we’ve heard about the Heartbleed vulnerability in OpenSSL, the proliferation of…

    Read More