To try it out: Configure your network settings to use the IP addresses 8.8.8.8 and 8.8.4.4 as your DNS servers.

They claim that:

By using Google Public DNS you can:

• Speed up your browsing experience.
• Get the results you expect with absolutely no redirection.

What do you think about it? Should I use those DNS servers? One reason to use them is I cannot open the web sites banned by the government (such as YouTube!).

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Also, they have 4.3.2.1 as another DNS –  Dan McClain Dec 4 '09 at 12:13
4.3.2.1 isn't responding to pings or DNS requests for me as of 9/6/10. –  Reid Sep 6 '10 at 19:32

A quick comparison of Google Public DNS with OpenDNS (which has been around for a long time).

If you have to access sites banned by Google DNS (or, OpenDNS for that matter), you can skip these configurations when you hit a problem. However, most of the time sites blocked by OpenDNS (and, I have to still look at Google Public DNS more) are those which I would never want to go to.

If YouTube is really banned by your ISP (or higher authorities), changing to another DNS will usually not help (unless this 'ban' is very weakly implemented). You would need to investigate tunneling techniques to bypass such bans.

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Thanks for the great article! –  Mehper C. Palavuzlar Dec 4 '09 at 13:45
I tried both OpenDNS and Google public DNS. The result is, both opens YouTube. –  Mehper C. Palavuzlar Dec 4 '09 at 14:01

Using google as DNS would mean they will see ANY DNS search or in other words they would know about any site you (likely) went to and so you provide them with a LOT of somewhat personal info, which they could collate with the other info they gather on you, make sure you are fine with that and be aware that if the law changes or there is some subpoena they could then be handing that info over to authorities who as you know will 'use anything you say against you'.

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Try using Namebench to see if it is faster for your location

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Great app! Thanks. –  Mehper C. Palavuzlar Sep 6 '10 at 20:19
Installing namebench using repository sudo apt-get install namebench –  465544 Jun 22 '13 at 7:33

If you can open all the sites you want then yes.

If you can't open some sites you have to be able to access then no.

Note, I'm not saying that just because Google implements your governments banned list you shouldn't use it. I don't know what sites are on the list (nor do I wish to investigate from work), but I could see that you might have a legitimate reason for wanted to view those sites (university research say).

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One of the banned sites is YouTube. Think about the rest... –  Mehper C. Palavuzlar Dec 4 '09 at 13:38

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Thanks for the link. Great charts and data! –  Mehper C. Palavuzlar Dec 8 '09 at 11:38

I tried it last night, but noticed it was slower than Level3 DNS, so I switched back this morning. I think it depends on your location. I'm in the east coast, so I think that's why I notice better performance with Level3.

I had the same experience when I tried OpenDNS, noticing Level3 was faster. Plus I didn't like some of the redirection OpenDNS does. I don't want my DNS thinking for me. :) Just fast.

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It's slightly faster over here in England. –  Phoshi Dec 4 '09 at 18:01

I did speed comparisons 3 times during the day and night yesterday, and both my ISP's DNS, and Level3 came back as faster than Google DNS.

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I think you should just use it if it really improve your productivity on the internet. But if you need to go to the sites banned by the government then don't use it.

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Our pragmatist government banned YouTube. I have to do something ;) –  Mehper C. Palavuzlar Dec 4 '09 at 13:41
@mepher - ugly, you should definitely do something –  Nicu Zecheru Dec 8 '09 at 10:29