The reason for this publication is announcement of Cloudflare for the availability of new DNS, which according to company provide improved security and faster response times. But are Cloudflare's DNS faster than their DNS OpenDNS, Quad9, or their google Public DNS?
We'll look at it below.
We should first mention that when we talk about speed, we should know that a lot depends on how close you are to a particular DNS crawler.
If you are right on the way to a data center that hosts OpenDNS DNS, it will be the fastest DNS resolver. Someone else who lives in another country will have a completely different experience Results.
To find out which DNS provider is faster for you, you need to check for yourself.
How; You will need the Unix BIND command. If you are not using an unix functional you can use the tool Dig of the Geektools website.
From the Unix / Linux shell, you can run the dig with the following joke:
dig @DNS_διεύθυνση_IP test.gr
Where DNS_address.ip είναι η IP του DΝS server που θέλετε να ελέγξετε και test.gr ένα site που θέλετε να δείτε πως ανταποκρίνεται με το συγκεκριμένο DΝS. Επομένως, για να δείτε το πόσο γρήγορα ανταποκρίνονται τα Google Public DNS στην διεύθυνση IP του iguru.gr, θα πρέπει να τρέξετε την παρακάτω εντολή:
dig @8.8.8.8 iguru.gr
That's it. What interests you in the results is the line that states "Query time". The results you will see are in milliseconds, and refer to the time it takes the DNS resolver to give you the answer. The smaller this number, the better.
If you are running a Linux system, there is a new shell program, the dnsperftest, which can give you fast results for the most popular DNS resolvers.
This way you can see which is the best DNS provider for you. As mentioned above, those who do not have a Linux system with Geektools Dig will show you all the information you need.