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6 DNS services protect against malware and other unwanted content

Eric Geier | Jan. 28, 2015
Use one of these DNS services to protect your family or business from phishing sites and other unwanted intruders.

Remember, the speed, reliability and performance of DNS servers can vary. Slow or poor domain resolution can translate into slower and less reliable web browsing. You can run speed tests on DNS servers (I recommend namebench ) so that you can compare their performance at your particular location.

Comodo Secure DNS

Free for: Personal use only

DNS Addresses: and

Comodo Secure DNS offers a simple free service for personal use. It is preconfigured to block harmful websites, such as those containing malware, spyware and phishing attempts. Additionally, it claims to offer a more reliable, faster and smarter DNS service than those provided by most ISPs.

Like Dyn, Comodo also sells services that include authoritative DNS services for websites and many other security solutions, such as SSL certificates, secure email services, antivirus and even PCI compliance services.

When a site is blocked by Comodo Secure DNS, a warning page is displayed. It shows the reason why the page is blocked and allows the user to disregard and continue to the blocked site anyway. When a user continues to a blocked site, he or she can choose how long to allow access to the site.

In the case of nonexistent or unresponsive domains, users see a page called Comodo Secure DNS Search. Suggested search terms or phrases are displayed based upon the domain they're trying to visit, in addition to a search field. One big downside of the search: Although the site says the results are powered by Yahoo, only sponsored links are given and are not true search results.

Keep an eye out for future updates from Comodo. Currently in beta, Comodo SecureDNS 2.0 offers customizable content filtering and is also being marketing towards businesses.

Dyn Internet Guide

Free for: Personal or business use
DNS Addresses: and

Dyn Internet Guide is a free service offered to the general public for personal or commercial use. Its basic preconfigured service automatically blocks malware and phishing sites, and offers typo correction.

Dyn also offers authoritative DNS services: hostnames for remote access and full DNS solutions for websites.

In addition, Dyn offers customizable content filtering if you create an account. You can block up to 30 pre-defined content categories and create custom white- and blacklists. Although it offers an Internet Guide subscription the company says is free, to use it you must sign up for Dyn's separate, fee-based Remote Access (DynDNS) service. Pricing for Remote Access starts at $25/year (there is a 14-day free trial). Additionally, you must log in every 30 days to keep your free Internet Guide account active.

Dyn offers two other Internet Guide subscriptions: Pro at $10/year and Premium at $20/year; neither requires the Remote Access service if your Internet connection uses a static IP address. Both provide the same functionality -- additional static or dynamic addresses, defense plans, whitelists and blacklists -- with the more expensive option offering more of each. The Pro and Premium plans also provide access to phone and email support.


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