You run anti-virus software on your mail servers and use various other network security tools to keep your users safe. It’s time to do the same with your DNS. All OpenDNS features are free. No hardware to buy, no software to install.
We did not only implement it in our office but also on our servers, read more to see all the features of this great free service.
Block the bad sites and whitelist the good.

Phishing Protection
We operate PhishTank.com, the world’s most trusted source of phishing data. We integrate that data into an intelligence feed on our DNS servers to keep everyone on your network safe from phony sites trying to steal personal information.

Domain Blocking
You want to secure your network and have control over what resolves. We give you that control by providing the tools to block any website or DNS zone on the Internet, all through an easy-to-use interface.

Adult Site Blocking
Safeguard your kids, protect your students, or limit your corporate liability by blocking adult websites. Our adult site blocking solution can be deployed in minutes and provides granular levels of blocking. Hundreds of school districts are already using OpenDNS to achieve CIPA compliance. Did we mention it’s completely free?
Web Proxy Blocking
Prevent people on your network from bypassing the access restrictions you put in place. Blocking Web proxies helps ensure your network remains secure.
Domain Whitelisting
We provide a (growing) list of Web content filtering categories to block, but sometimes there is a domain you want to make sure is never blocked, even if it’s listed in a feed. Have the final say with our Domain Whitelisting feature.
Statistics
Understand your Web traffic with intutive stats about your network’s DNS. This is your data, and now you can view it like never before. And of course, if you don’t want stats, we won’t collect any DNS data from you, at all.
OpenDNS Guide
The OpenDNS Guide is the page your users see when they go to a website that doesn’t exist or isn’t resolving. We provide search results and offer suggestions to help your users get back on their way. This includes the use of our industry-leading domain spellchecking service to save them time and make them more productive.
Customization
We want what you want: happy users who feel comfortable using OpenDNS. Customize and brand our OpenDNS Guide and blocked pages, replacing our logo with your own. Show the users on your network that what they are seeing is trusted and safe.
Typo Correction
We don’t think you should be punished with an annoying error message if you make a small typo, like typing google.cmo instead of google.com. That’s why we correct that typo, and thousands more like it every day.
Shortcuts
Shortcuts are like AOL keywords that you control. Set up a simple shortcut like “help” that people on your network can use to find your company IT helpdesk, or “HR” that takes them to your company HR Web site. You can set up network shortcuts and still let all the users on your network create their own.
Make DNS outages a thing of the past.
Large Cache
OpenDNS operates the largest and most intelligent DNS caches in the world. As a result, when you ask us a question, we almost always have the answer. This results in an overall faster way to navigate the Internet.
Ultra-Reliable Network
Our architecture was designed to withstand even the worst of network failures and still serve your DNS reliably. Feel free to dive in and learn more about our architecture and how we run a zero-downtime network.

