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How to configure DNS for better speed and security on the Internet

23 mayo, 2021

Man does not live on megabytes alone (nor the woman). We have already told you on numerous occasions the importance of DNS servers in your internet connection, as well as how to find the fastest ones through the Namebench tool. Choosing a good DNS server it will improve both our security and our browsing speed, so being clear about the best alternatives is a must for those users who want to enhance their connection.

For the most lost, remember that DNS servers are those that are in charge of translate the URLs of a website to the IP address needed to enter. The less latency there is between the information we send and the response we receive, the sooner we will access the website.

Free and free DNS servers: what are they, what risks do they have and main alternatives

DNS, one of the best ways to improve your connection

When it comes to DNS, we find free and paid variants. To safeguard your economy, we wanted to choose the fastest DNS within the public sphere, so that you can connect at no cost.

Remind you also that, depending on your connection, there will be more suitable DNS servers than others. That is why it never hurts to take a look at Namebench, a tool that will advise us which are the most suitable DNS for us. Regardless of this, the numbers speak for themselves and, as DNSperf shows us, public DNS performance is more than proven, so it is easy to establish a general order on the speed that we can reach with them.


Cloudflare Dns

Cloudflare promises to be faster and more secure than Google’s own DNS, even with applications for Android and iOS that configure DNS automatically on our phones. The American company has a good reputation behind it, and the advantage of be the fastest DNS we can currently use.

This DNS has a query time (URL query speed) in Europe of 9.48ms, the best recorded time according to DNSperf (up to 57% faster than Google DNS). This means that Cloudflare is the best option if you are looking for speed when browsing the internet.

Cloudflare’s primary and secondary DNS are and



Currently under the Cisco umbrella, OpenDNS has a long history. Specific, 14 years of free service, offering good speed, customizable filters, and promising security when browsing.

The European OpenDNS times tell us about 16.92ms, about twice as long as Cloudflare took. However, remember that at the level of functionalities (especially if we decide to jump to the payment options) of OpenDNS is quite broad, so it is a server to take into account.

OpenDNS primary and secondary DNS are and


Google Dns

The Big G, how could it be otherwise, has its own DNS server. In your case, as we read in Engadget anonymized user data is stored, for diagnostic and troubleshooting purposes. Google promises delete your IP address after 24 to 48 hours, point to consider for those who love privacy. Although you may have the disadvantage of knowing that our data passes through Google, maintains a good balance between speed and safety.

It is the third fastest DNS, according to DNSperf, giving us a time of 22.31 ms. These Google servers, as the main advantage (apart from their speed), protect us against DoS attacks, quite common in these times.

Cloudflare’s primary and secondary DNS are and


Norton Dns

Norton, the famous division of Symantec well known for its antivirus, also has its own DNS servers. Going public in 2010, the company’s DNS service was born to offer greater speed and safety when navigating, promising to block malware and attacks from phishing.

In DNSperf tests, Norton’s DNS reaches a query speed within Europe of 23.43ms, figure quite close to that offered by Google’s DNS.

Norton’s primary and secondary DNS are and


Neustar Dns

Neustar, a US company known for offering telecommunications services, has the fifth fastest DNS service, according to the tests on which we are basing the list. Like its competitors, Neustar promises a safe and fast browsing experience, with protection against DDoS attacks and its own Firewall.

Caressing by a few tenths the speed reached by Norton’s DNS, Neustar gets a response time of 22.93ms. Taking into account the variability of these ms based on our own connection or the time in which we do the test, the difference between one and the other is ridiculous.

Neustar’s primary and secondary DNS are and



SafeDNS ranks sixth in terms of public DNS speed, and seventh if we include private ones. This solution enables ad blocking, contains filters against malware and allows custom blocking. However, if we want to use the free version, most of these functions will be covered, being exclusive to the paid version.

The speed obtained in the DNSperf tests has been 26.01ms, a value quite close to the DNSFilter and Newstar alternatives.

SafeDNS primary and secondary DNS are and


Verisign Dns

With 24 years of age, Verising is a veteran internet company, focusing on the world of network infrastructures. Regarding its DNS, it stands out for being a good alternative in terms of security and privacy, although its speed begins to be significantly below the rest of the alternatives.

In the tests at hand, the Verising DNS is the first to break the 30ms barrier, reaching a response time in Europe of 31.1ms. A difference that is beginning to be noticed (remember that Cloudflare drops below 10ms), but there is his proposal, completely free.

Verisign’s primary and secondary DNS are and



Focused on security products, Comodo company please offer your DNS service for free. In this part of the ranking you should not expect the best response speeds, but yes a strong commitment to safety, focusing on blocking the phishing, spyware, and even ads.

Comodo’s DNS speed is 33.68ms, high figure compared to the first DNS in the ranking, but price to pay for extra security that must be taken into account.

Comodo’s primary and secondary DNS are and


Quad9 Dns

Reaching the last positions of the ranking we find Quad9, a young DNS service (activated in 2016), focused on those users who seek security when browsing.

With a speed in Europe of 34.43ms, it is posed as a good alternative to calmly surf the internet, with an acceptable speed, despite not being one of the fastest.

Quad9’s primary and secondary DNS are and


Yandex Dns

Last but not least, a bad option, Russians from Yandex offer users their DNS services. From website They tell us about the benefits at the security level that their servers have, protecting us from malicious pages using their own algorithms (helped, of course, by the people of Sophos).

Yandex’s European servers are capable of translating URLs in 46.1ms, slower than the rest of the alternatives discussed, breaking the 40ms barrier. Nevertheless, the extra security it provides makes it worthy of a good position in the world of DNS.

Yandex’s primary and secondary DNS are and

Privacy and speed: why change DNS


By default, our network connection will depend on the servers that our own company has established for our router. Changing the DNS for an alternative of Cloudflare, OpenDNS or Google, our browsing speed can improve considerably, by reducing loading times on web pages.

On the other hand, and although it is not something frequent in the case of European users, it could be the case that governments blocked access to certain websites. This block can be bypassed if we change the configuration of our DNS.

By last, We find in DNS a bastion for security as shown by Quad9 or SafeNDS, for all those concerned about their privacy and security when browsing. This being the case, we finally find a basic, free and fast way to improve our experience with the browser within the reach of any user.

Measuring DNS speed

Namebench Dns

DNSperf is one of the best web pages to check the speed of a DNS (both in Europe and worldwide), as well as to access the list of which are the fastest and most stable. However, we found various tools to measure the speed of the DNS and check which is the best according to our connection, such as DNS Benchmark available for Windows and Wine, DNS Jumper available only for Windows, or Namebench, available for Windows, Linux and Mac Os.

Being aware of the different tools to measure the speed and quality of DNS, Namebench is our option to recommend for its simplicity.

The most popular of them, and one of the ones that has worked best for us has been Namebench, since we only have to open the program, and this it will search for the most suitable DNS for our connection automatically. In this way, it will not be necessary to compare the times of each DNS ourselves.

How to change your DNS

Changing the DNS is a simple process, which will depend on the device we are using. We can change the values ​​from the computer or phone itself, from the settings offered by the different operating systems.

Dns In Macos

In the case that we are using a Linux or MacOS distribution, to change the DNS we only have to access the network panel of the settings. From there we will access the DNS section, in which we can add a new one, assigning the relevant primary and secondary values.

Change Dns Engadget Basics

If on the contrary, our platform is Windows, the process is quite similar, since we can do it from control panel. From this, we will access the section of network connections, and within Internet Protocol version 4 (TCP / IPv4) we will visualize the option of Use the following DNS server addresses. By activating this option, we can fill in the fields corresponding to the primary and secondary (shown as preferred DNS server and alternative DNS server.)

Change Dns On Android

As far as mobile operating systems are concerned, changing the DNS is possible from Android and iOS. In Google’s operating system, we must go to the section of Network and Internet, to search inside …