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Internet Speed Up By Changing DNS



What DNS is best for you?


The big question is how to find a new DNS and how to know it will be any better than your current one. Google has a solution called namebench.


This lightweight program will test your DNS against other popular DNS servers. Once it finishes the comparison, it will give you detailed statistics on performance and recommend the best DNS for you to use.


Download Instructions


To download the program, navigate to the namebench download page by using the links at the end of this article. On the left side of the namebench download page, there is a green header labeled "Featured." Here is where you will find the program you need.


For PC users, click the second download link with the ending "Windows.exe". Mac users should select the download link ending in "Mac_OS_X.dmg".


You will be redirected to another page that has another download link. This link should be highlighted in green and have the same name as the previous download link you clicked.

Note: If the download link is not highlighted in green or the download link is different from the first, do not click on it. It is not the download link you're looking for.


Click the highlighted download link and your download will begin immediately. After the download is complete, extract the installation files. namebench will launch automatically.


Managing namebench


On the first window, you'll see a field labeled Nameservers. This will automatically be filled with the IP address of your current DNS.

Below the Nameservers field are two checkboxes. One says "Include global DNS providers," the other says "Include best available regional DNS services." Leave both of these checked.


The next area is for secondary options. The first checkbox lets you check if the DNS is blocking certain sites. If you're looking for a DNS with filtering options, definitely select this one. It will tell you how effective a DNS is at blocking unwanted content.


The second checkbox will publish your results anonymously. This will help provide more accurate results to you and others in the future. You can leave this blank or check it. Neither will affect the comparisons you're given.


Next, set the location dropdown to your country. In the Query Data Source dropdown menu, select your default browser. If you aren't sure what browser you use, visit this site.


In the Health Check Performance section, you normally want this set to Fast. This will test the speed of 40 nameservers. But if your Internet connection is slow or unreliable, change Fast to "Slow (unstable network)."


For the number of queries, the standard 250 should be sufficient. But if you're on a slower network, you may want to decrease the amount.


Once you've got your settings in place, hit Start Benchmark. While namebench is running, you should avoid using the Internet as that can affect its results.


When namebench completes, it will open up a new browser window with your results. There's a lot of information in this window. We'll focus on the most important parts.


The first box gives you a DNS recommendation and tells you the possible speed increase by switching. The box immediately to the right gives you the settings of the recommended DNS and two backups.


Below these boxes are a series of charts and graphs. These visualize and breakdown the performance of each DNS. You can find exact details about each graph at Namebench's wiki.


Change your router settings


Now that you know which DNS is best for you, you need to change the settings on your router. That improves all the gadgets on your network.


To edit your router settings, you'll need to open your browser and type in your router's IP address and enter your username and password. You can find out your router's default IP address and login information in the router manual. 


Once you access the router's settings, take a look under the basic settings. You should see fields for Primary DNS and Secondary DNS. Write down both of the IP addresses in case you need to go back to them later.


Next, replace the existing IP addresses with the Primary and Secondary IP addresses from Namebench's "Recommended configuration" box. Then Save your router settings and log out.


If you don't have a router, you can change the DNS settings right on your computer. For Windows, look under Start>>Control Panel>>Network and Internet>>Network and Share

Center. Click the "Manage network connections" link on the left.


Right-click on the Local Area Connection icon and select Properties. Under the Networking tab, click on Internet Protocol Version 4 and click the Properties button.


Under the General tab, click "Use the following DNS server addresses" and enter the DNS addresses provided by namebench. Then click OK.


On a Mac, go to System Preferences>>Network. Click the lock icon in the lower left corner and enter your password.


Select Built-in Ethernet and click Advanced. Select the DNS tab and click the + icon. Add the DNS addresses from namebench and put them at the top of the list. Click Apply and OK.


Flush the old DNS cache


Once your DNS is changed on your router or computer, there is still one more task. To finish, you'll want to flush your computer's current DNS cache. This prevents it from trying to use the old DNS server to look up sites you visit often.


To flush your DNS on Windows Vista or later, type CMD into the search field in the Start menu and hit Enter.


A Command window should open up. Type "ipconfig /flushdns" (minus quotes). Now hit Enter and you should see "Successfully flushed the DNS Resolver Cache."


To flush your DNS on Mac OS X, first click on Spotlight. It's the magnifying glass at the top right. Now type in Terminal and hit Enter. When the Terminal window opens, enter

"dscacheutil -flushcache" (no quotes). Now hit Enter. You should see "bash-2.05a$ dscacheutil -flushcache" if all went well.


Namebench Downloads Page


Namebench Wiki

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7 answers to this question

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I wonder, how many people have been using OpenNIC. I always wish to try it but uptime has been an issue with it.

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...or DNSBench?

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1 hour ago, 0bin said:

Simple DNS Crypt has OpenNIC anycast resolver inside resolver.csv, maybe you want take a look.


But don't have DNSSEC.




I have found OpenNIC's anycast addresses are not reliable - it does not connect to my nearest server but connects to a far one instead. Also, couple of days ago, I went to their chat channel and told them a mistake in one of their second tier server's specification - a server was labeled in a wrong country, but no one seem to have fixed it.

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6 hours ago, edwarde54 said:

...or DNSBench?

A unique, comprehensive, accurate & free Windows (and Linux/Wine) utility to determine the exact performance of local and remote DNS nameservers . . .

“You can't optimize it until you can measure it”
Now you CAN measure it!


more information and DL at https://www.grc.com/dns/benchmark.htm

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-Your ISP DNS is the Fastest  but less Secure than the DNS offered by Norton, Comodo, Open etc.


-Google DNS has been very Fast but less Secure than Norton and Comodo.


-Norton and Comodo have been the most Secure DNS services.

Google and Open DNS have been Faster than Norton and Comodo DNS.


Results, however, vary among users.


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Ballistic Gelatin

I might add that this test can take considerable time, so you may want to just leave it running overnight.


Also, when I opened the drop-down menu for my country (USA), the only options presented were "None" and "(Other)". Anyone else notice this issue?

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Has anyone tried DNS Jumper? I find it quite a bit faster. Most of the time (at least in the US), Open DNS comes out on top-sometimes google. I personally have used Open DNS for years. It is configurable (such as parental controls) and also blocks malware. Any other slightly faster DNS servers speeds are barely noticeable in real-time. 

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