DNS Optimizer

Cisco Umbrella provides protection against threats on the internet such as malware, phishing, and ransomware. OpenDNS is a suite of consumer products aimed at making your internet faster, safer, and more reliable. Thanks to our global data centers and peering partnerships, we shorten the routes between every network and our data centers, making your internet access even faster. With filtering or pre-configured protection, you can safeguard your family against adult content and more. It’s the easiest way to add parental and content filtering controls to every device in your home. Get OpenDNS up and running in your home quickly and easy. PhD in Computer Science not required. Thanks to our helpful guides and knowledge base, set up is a breeze. Blocks more than 7 million malicious domains and IPs while delivering high performance. Identifies more than 60 thousand new malicious destinations (domains, IPs, and URLs) daily. Our global network sustains over 620 billion DNS queries daily.

Quad9 is a free service that replaces your default ISP or enterprise Domain Name Server (DNS) configuration. When your computer performs any Internet transaction that uses the DNS (and most transactions do), Quad9 blocks lookups of malicious host names from an up-to-the-minute list of threats. This blocking action protects your computer, mobile device, or IoT systems against a wide range of threats such as malware, phishing, spyware, and botnets, and it can improve performance in addition to guaranteeing privacy. The Quad9 DNS service is operated by the Swiss-based Quad9 Foundation, whose mission is to provide a safer and more robust Internet for everyone. When your devices use Quad9 normally, no data containing your IP address is ever logged in any Quad9 system.