Predict and prevent attacks before they happen using our cloud-delivered enterprise security service. Protect any device, anywhere with OpenDNS. Sign up for OpenDNS Home Free to enjoy enhanced internet security, faster browsing, and customizable web content filtering for your home network. OpenDNS, developed by Cisco Umbrella, offers enhanced security features like phishing protection, faster DNS lookup speeds, and customizable content filtering, making it a superior alternative to regular DNS services. OpenDNS is a powerful tool that enhances your internet experience by providing a more secure, faster, and smarter way to navigate the web. But what exactly is OpenDNS, and why does it matter for your network? OpenDNS is the easiest way to make your Internet safer, faster and more reliable. Protect your family across all devices on your home network. Check the IPs of Free Public DNS Servers by OpenDNS. Configure your network settings to use the DNS Server IP addresses to get fast and smooth Internet browsing. OpenDNS gives you unique insight and control into how OpenDNS resolves your domain with OpenDNS CacheCheck. If you are moving a domain from one DNS host to another, CacheCheck can help you make that transition smoother. OpenDNS makes the Internet experience safer, faster and smarter for you and everyone using your network. It's free and takes only 2 minutes to get started, with no software to install. Sign in to OpenDNS to access your account and manage DNS settings for enhanced security and internet filtering. OpenDNS is an American company providing Domain Name System (DNS) 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.