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namebench 1.3.1

Speed up your web browsing by finding the fastest DNS server for you

Operating Systems:
Linux, macOS, Windows 7 (32 bit), Windows 7 (64 bit), Windows Vista, Windows XP
Open Source
Software Cost:
Portable Applications
Date Updated:
22 January 2011
Downloads To Date:

It happens all the time: you type a URL into your browser address bar, hit enter, and there's a long pause before anything happens. The delay might be down to the remote site. It may be because your ISP is busy. But another possibility is that your DNS server (the computer that translates a domain like into an IP address like is just slow. DNS lookups normally take a fraction of a second, but slow servers might take 3, 4, 5 seconds or more to return any information for some sites, and that can quickly become very frustrating.

You don't have to use the DNS server provided by your ISP, though. There are plenty of public alternatives around, and namebench can help you find out whether any of these would improve your surfing speeds.

To get started, launch the program and choose your most commonly used browser in the Benchmark Data Source list. Click "Start Benchmark" and namebench will extract 200 recent URLs from your browser history, then query several DNS servers for each one.

You should stop using your PC while the benchmark is running, just to ensure that you don't skew the results. Go make a coffee or something, give the program the 10 or 15 minutes it needs, then come back and admire the finished report: detailed charts and graphs that tell you exactly how fast each server is, and recommend the two that you need to use.

You'll still have to change your DNS server settings manually, unfortunately. Not sure how? Then view this Google page, replacing its server IP addresses with the ones that namebench recommends.


We've found namebench occasionally gives inaccurate results, but it's still worth a try - if you see no improvement, just restore your original DNS server settings and carry on as before

Your Comments & Opinion

Your ISP redirects outgoing DNS requests
17 August 2013 15:23, Kafshiel
Dear Shahid Ali: My ISP company does exactly that. Therefore i cannot use different DNS servers. Only the ones that they provide. I still don't know if that's common here in Europe (i'm from Portugal) but it's their terms of service. Check with your Internet Service Provider to see if you can change these settings (i can't but their servers are very fast, around 22 miliseconds to get to and never more than 78 ms to other sites so i don't complain).
there is a new problem to use namebench plzzz help
15 August 2013 16:41, shahid ali
your router or internet servise provider appears to be intercepting and redirecting all outgoing dns requets. this means you cannot benchmark or utilize alternate dns servers. please adjust your router configuration or a file support request your isp. so what i have to do plzzz help
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