OpenDNS is an American company providing Domain Name System resolution services—with features such as phishing protection, optional content filtering, and DNS lookup in its DNS servers—and a cloud computing security product suite, Umbrella, designed to protect enterprise customers from malware, botnets, phishing, and targeted online attacks.
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Until June 2014, OpenDNS provided an ad-supported service and a paid advertisement-free service.
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Name "OpenDNS" refers to the DNS concept that queries are accepted from any source.
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OpenDNS offers DNS resolution as an alternative to using Internet service providers' DNS servers or locally installed DNS servers.
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OpenDNS provides the following recursive nameserver addresses for public use, mapped to the nearest operational server location by anycast routing.
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OpenDNS provides the following recursive nameserver addresses as part of their FamilyShield parental controls that block pornography, proxy servers, and phishing sites.
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OpenDNS Sandbox is an RFC-compliant DNS service that does not provide any level of filtering.
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In July 2013 OpenDNS said that it handled over 50 billion DNS requests daily.
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In 2008, OpenDNS changed from a closed list of blocked domains to a community-driven list allowing subscribers to suggest sites for blocking; if enough subscribers concur with the categorization of a site, it is added to the appropriate category for blocking.
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OpenDNS run a service called PhishTank for users to submit and review suspected phishing sites.
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In December 2007 OpenDNS began offering the free DNS-O-Matic service to provide a method of sending dynamic DNS updates to several DDNS providers using DynDNS's update API.
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In October 2009 OpenDNS launched charged-for premium services called Home VIP that offer increased reporting and block features, and other services.
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In 2009 OpenDNS launched OpenDNS Enterprise, a first foray into enterprise-grade network security.
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OpenDNS Enterprise included the ability to share management of the product across a team, along with an audit log, expanded malware protection, daily network statistic reports, and a custom block page URL.
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OpenDNS expanded on the Enterprise product in July 2012 with OpenDNS Insights.
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In November 2012 OpenDNS launched its network security product suite called Umbrella, designed to enforce security policies for mobile employees who work beyond the corporate network using roaming devices such as Windows and Mac laptops, iPhones, and iPads, and provides granular network security for all devices behind the network perimeter.
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The data is sourced from the DNS requests OpenDNS receives, plus the BGP routing tables that are managed by OpenDNS's network operations center.
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OpenDNS introduced the Investigate feature to Umbrella in November 2013.
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One month later OpenDNS announced a technology integration partnership with FireEye.
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In July 2006 OpenDNS was launched by computer scientist and entrepreneur David Ulevitch, providing recursive DNS resolution.
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In October 2006 OpenDNS launched PhishTank, an online collaborative anti-phishing database.
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In June 2007 OpenDNS started advanced web filtering to optionally block "adult content" for their free accounts.
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In June 2010 OpenDNS launched "FamilyShield", a service designed to filter out sites with pornographic content.
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OpenDNS launched Security Graph, a security intelligence and threat detection engine in February 2013, followed by a Series B funding round.
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In May 2014 OpenDNS announced a Series C funding round totaling, with new investors Glynn Capital Management, Northgate Capital, Mohr Davidow Ventures, Lumia Capital, Evolution Equity Partners, Cisco, Chris Sacca, Naval Ravikant, Elad Gill, as well as previous backers Greylock Partners, Sequoia Capital, and Sutter Hill Ventures.
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OpenDNS previously earned a portion of its revenue by resolving a domain name to an OpenDNS server when the name is not otherwise defined in DNS.
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Advertisers paid OpenDNS to have advertisements for their sites on this page.
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OpenDNS said that the advertising revenue paid for the free customized DNS service.
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