OpenDNS is now part of Cisco Learn More

Take Your Security Further

Predict attacks before they happen
Expand threat protection beyond the perimeter
Remove your DNS blind spot

The most trusted brands choose OpenDNS

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

See why Edward chose OpenDNS

See why Edward chose OpenDNS

Protect Your Business With OpenDNS Umbrella

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Threat protection like no other

OpenDNS Umbrella blocks malware, botnets and phishing over any port, protocol or app, and also detects and contains advanced attacks before they can cause damage. Our Security Graph engine uses big-data analytics and machine learning for predictive intelligence, to automate protection against both known and emergent threats.

Worldwide coverage in minutes

OpenDNS Umbrella protects devices anywhere and stays up-to-date without admin intervention because there is no hardware to install or software to maintain. Our Global Network handles more than two percent of the world’s Internet requests daily with 100 percent uptime and no added latency.

We have you covered, anywhere you go

OpenDNS protects you on your laptop, smartphone, desktop, server, and network


Show me OpenDNS Products for Personal Use →

Numbers We Are Proud Of

of Internet requests

daily active users

daily DNS requests

OpenDNS Blogs

  • Cisco and OpenDNS: A New Day in Cloud Security

    Author: David Ulevitch, Founder/CEO

    OpenDNS has gone through many changes in its ten-year history as a leading cloud-delivered network security company. In 2006, the … company was launched as a consumer DNS provider. In 2012, the company transitioned to cybersecurity…

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  • The Brief: August 17th-23rd, 2015

    Author: The Brief

    This week, in the Brief: AV is dead (according to John McAfee), the cyber arms race has begun (according to … Bruce Schneier), and the latest Apple 0day hubbub is “kinda getting out of proportion,” (according to Luca Todesco): …

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  • API Testing with Postman

    Author: Philip Thomas

    The Postman app has become the de-facto tool for interacting with HTTP-based APIs during development. It provides a better version … of cURL for developers, and OpenDNS engineers have used it for the development of tools ranging…

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