Some services also allow you to create an account (some free, some require premium services) to customize the level of protection and messages that appear when a site is blocked. Without further intervention, you'll receive the DNS service's preconfigured security or filtering protection. Simply change the IP addresses for DNS in the internet settings of your router to apply it to the entire network or change the DNS settings on select computers or other devices. It's easy to switch to a different recursive DNS service. The servicesīecause there are so many DNS services available, only those that provide some type of automatic or preconfigured content filtering are discussed here with a description of what the user sees sent when the filter kicks in, which can range from a boring ,"This site can’t be reached," page to customizable block page. Most are either completely free of charge or offer a number of free features that might make it worth your while to take a look. For instance, if you typed it would correct to .įive of these services are described here. This blocks communication with known botnet servers so your computer isn't taken over. Using certain DNS services, you can spoof your browsing location to unlock certain sites/content, similar to that of what VPN servers offer. This can help prevent others from seeing what sites you’re accessing and helps stop DNS spoofing. There are newer, smarter, and much more secure protocols (such as DNS-over-HTTPS and DNS-over-TLS) that some DNS servers provide to help authenticate and encrypt the DNS traffic. The DNS protocols used by most ISPs and servers have been around forever. This is another type of content filtering to help reduce the Ads you see and advertisers track you online, which some DNS services specifically concentrate on. This can be performed by the content filtering tool also, to block sites containing viruses, scams and other dangerous content. This can be conveniently implemented to block adult sites, social networks, and other unwanted content, while requiring no software on the computers and devices. Since DNS servers are the middlemen between your browser and website content, there are many third-party DNS services that offer additional functionality for both users and network administrators. Some of them, however, also sell authoritative DNS services, which allow website owners or hosts to define the web server IP addresses that their domain names point to and to manage other DNS settings. All the companies listed here offer recursive DNS services. The ones that are used by most individuals and small companies (and that are covered here) are called recursive DNS and are the default services provided by most Internet Service Providers (ISPs). There are two main types of DNS servers: recursive and authoritative. The process of converting the domain name to its IP address is called domain-name resolution. Each time you type a site name into the browser, DNS is queried for the IP address corresponding to that particular domain, so the browser can contact the Web server to get the content. You utilize the Domain Name System (DNS) every time you surf the Web. This article describes five of these services. DNS services provide a mix of tools to customize what content is filtered and which sites are blocked, among other useful features. It can also help stop users’ browsing to malware and phishing sites, block intrusive advertising, and serve as adult-content filters.īecause the Domain Name System (DNS) enables individual computers to reach destinations on the internet, services that filter out dangerous or unwanted sites can improve overall network security. Firewalls and antivirus can help block internet-based malware from infecting connected enterprise machines, but layering on DNS-based filtering can help avoid some of these threats in the first place.
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