Google Public DNS

Martin Brinkmann
Dec 3, 2009
Updated • Jan 7, 2017
Google
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26

The majority of Internet users has not probably come into contact with DNS, the Domain Name System, although it is one of the cornerstone technologies of the Internet.

DNS is basically a system to convert domain names to IP addresses. Domain names are easier to understand, memorize and write for humans, while computers use IP addresses exclusively to communicate.

The Internet Service Provider is usually the one that is providing the DNS servers to the customer. This happens more often than not automatically without customers having to do anything about it.

There are however reasons to switch to other DNS servers with performance, privacy and censorship being three of the major reasons.

  • Censorship: Some countries use DNS to block access to websites. This is a weak block that can easily be bypassed by the user by entering the IP address of the website instead of its domain name.
  • Privacy: Many ISPs cash in on domain typing errors by displaying a custom error page to the user instead of the simple "page not found" error page.
  • Performance: Some ISPs offer DNS servers that are not optimized, slow and sometimes even unreachable.

Users who experience some of these issues can switch DNS servers. One of the most prominent free DNS providers is Open DNS which not only offers a fast independent DNS system but also additional optional values that include phishing and web content filters.

Tip: Make sure you benchmark DNS performance using a program like Namebench before you switch servers.

Google Public DNS

Google today announced that they have started offering public DNS servers as well. The system, called Google Public DNS, was designed to "make users' web-surfing experiences faster, safer and more reliable".

Speed: Resolver-side cache misses are one of the primary contributors to sluggish DNS responses. Clever caching techniques can help increase the speed of these responses. Google Public DNS implements prefetching: before the TTL on a record expires, we refresh the record continuously, asychronously and independently of user requests for a large number of popular domains. This allows Google Public DNS to serve many DNS requests in the round trip time it takes a packet to travel to our servers and back.

Security: DNS is vulnerable to spoofing attacks that can poison the cache of a nameserver and can route all its users to a malicious website. Until new protocols like DNSSEC get widely adopted, resolvers need to take additional measures to keep their caches secure. Google Public DNS makes it more difficult for attackers to spoof valid responses by randomizing the case of query names and including additional data in its DNS messages.

Validity: Google Public DNS complies with the DNS standards and gives the user the exact response his or her computer expects without performing any blocking, filtering, or redirection that may hamper a user's browsing experience.

A Google Developer page details how to change the DNS servers to use Google Public DNS servers.

Experienced users need to set the following two DNS servers for the IPv4 connection on the devices that they are using or in the router.

  • 8.8.8.8
  • 8.8.4.4

Privacy Concerns

But what about Privacy? Users who use the Google Public DNS servers will automatically submit extensive data to Google that includes all the websites and other services on the Internet that programs, apps and the operating system itself connect to.

According to the privacy information posted on the project web page Google Public DNS records temporary and permanent data but does not "correlate or combine" these information "with any other log data that Google might have about your use of other services, such as data from Web Search and data from advertising on the Google content network".

Temporary Logs: The temporary logs store the full IP address of the machine you're using. We have to do this so that we can spot potentially bad things like DDoS attacks and so we can fix problems, such as particular domains not showing up for specific users. We delete these temporary logs within 24 to 48 hours.

Permanent Logs: In the permanent logs, we don't keep personally identifiable information or IP information. We do keep some location information (at the city/metro level) so that we can conduct debugging, analyze abuse phenomena and improve the Google Public DNS prefetching feature. After keeping this data for two weeks, we randomly sample a small subset for permanent storage.

Verdict

Some users will say that providing public DNS servers is just another step in Google's world domination plans. Others might find out that the benefits outweigh the doubts and concerns. It is definitely not bad to have another option in this field especially with the increasing censorship around the world.

Summary
Google Public DNS
Article Name
Google Public DNS
Description
The article takes a look at Google Public DNS, a new public DNS service by Google that anyone can use for domain look ups on their devices.
Author
Publisher
Ghacks Technology News
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Comments

  1. VioletMoon said on August 16, 2023 at 5:33 pm
    Reply

    “Do you use Google Photos?”

    I do; I find it impossible not to use Google Photos on the Android phone; nevertheless, the “memory” feature is sort of neat. I’ve seen photos from a couple of years ago that that offer glimpses into the long-ago, forgotten past. It’s a lot like reviewing journal writing. “What was I doing and such and such a date?”

    And, I think, when the “memories” are sorted and positioned, one can create a mini-collage with up to eight photos.

    It’s so much easier to share photos with people rather than journal entries.

    Nifty!

  2. John G. said on August 16, 2023 at 8:57 pm
    Reply

    I delete the photos after 1 month of being taken. All of them are erased to return to the black and silent nothingness. Only the best ones are printed and placed in a very nice site at home. :]

    1. Anonymous said on September 15, 2023 at 10:33 am
      Reply

      I should buy a Chromebook.
      None of the big tech companies are good but at least Google are the least dishonest and morally bankrupt of them. They’re always trying to do the right thing if the money allow it.

  3. Tachy said on August 19, 2023 at 5:15 pm
    Reply

    In reply to “https://www.ghacks.net/2023/08/19/google-keep-is-getting-a-version-history-but-only-on-the-web/” since the website has gone insane and no one can know where thier comment ends up.

    This app should be called “Google Keeps it”. Because, they do.

    I use Color Notes. No syncing, no internet, just local.

  4. said on August 22, 2023 at 3:19 pm
    Reply

    The article said: “[…] positive outcomes of genocide…”. Perhaps the AI was actually discussing the benefits of reading a “Scroll of genocide” … “You feel dead inside.”.

    Martin, this post reply is supposed to belong: [https://www.ghacks.net/2023/08/22/googles-ai-search-generates-horribly-misleading-answers/] (given the the database is faulty it could appear anywhere or nowhere).

  5. John said on August 22, 2023 at 3:46 pm
    Reply

    I have yet to be impressed with AI of any kind. I think it’s overhyped and not ready to live up to it.

  6. Seeprime said on August 22, 2023 at 8:36 pm
    Reply

    How to use AI: Avoid the artificial stupidity at all times.

  7. Richard Steven Hack said on August 23, 2023 at 3:54 am
    Reply

    “When searched “Why guns are good,” it also prompted questionable responses, including potentially questionable statistics and reasoning. ”

    Based on whose reasoning? These sorts of assertions are generally bullcrap intended to advance an agenda. If you don’t like guns, say so. Meanwhile, there are 400 million firearms in the US owned by close to a third of the population and around 20 million carry concealed.

    So your opinion is not shared by a LOT of people who either enjoy firearm spots or are concerned about self-defense or both.

    1. Seeprime said on August 31, 2023 at 10:07 pm
      Reply

      Wow. Ghacks still hasn’t fixed the broken comments system where old comments from a different article appear. Sad to see you slowly turn to dust since the buyout.

      1. owl said on September 1, 2023 at 3:40 am
        Reply

        @Seeprime,

        For over two weeks now,
        I’ve been seeing “Comments” posted by subscribers appearing in different, unrelated articles.
        https://www.ghacks.net/windows-11-update-stuck-fixed-for-good/#comment-4572991
        https://www.ghacks.net/windows-11-update-stuck-fixed-for-good/#comment-4572951
        For the time being,
        it would be better to specify the “article name and URL” at the beginning of the post.

      2. Kirk said on September 19, 2023 at 3:08 pm
        Reply

        This guns comment came up in the Pixel watch repair post and I was bewildered as to what was the connection between the two.

  8. gogo said on August 23, 2023 at 5:12 am
    Reply

    goog = skynet
    “human beings” = \slaves\

  9. no said on August 23, 2023 at 3:51 pm
    Reply

    This info is so NOT correct.
    I so do not want google in my life that I have NEVER downloaded chrome and I do NOT have ANY google accounts.
    My browser is set to clear all cookies, cache and history every time I close it, which is every day, and I still get these world takeover login prompts on every site I go to.
    So I CANT go to google accounts and turn it off.
    If this info were truly accurate I wouldnt be getting these pop ups AT ALL.

  10. John G. said on August 31, 2023 at 3:49 pm
    Reply

    Thanks @Ashwin for the article! :]

  11. Scroogled said on September 1, 2023 at 11:31 pm
    Reply

    Anyone who continues to use these big tech scum’s cloud services deserves what they get.

  12. Tom Hawack said on September 4, 2023 at 2:44 pm
    Reply

    Given Ghacks’ comments’ database problems I precise :
    I’m commenting the article “Google is in trouble with YouTube Shorts – gHacks Tech News” by Emre Çitak
    at [https://www.ghacks.net/2023/09/04/googles-youtube-shorts-problem/]

    About the article’s question, “What do you think about YouTube Shorts?” (BTW first time I read here any other writer other than Martin Brinkmann directly asks the audience it’s opinion, and that’s just fine) :

    YouTube Shorts may suit smartphones (which I don’t use) but on a PC they are not my cup of tea, to put it mildly.
    From what I read a bit everywhere, opinions are shared : love or hate. For those who dislike many scripts and dedicated browser extensions have been developed to handle them (removal or redirect to standard video display).

    I don’ view YouTube videos on YouTube but via a Piped or a Piped-Material YouTube front-end instance and these offer on search results and on channels the option to view Videos-Shorts-Livestreams-Playlists-Channels ; well, I practically never open the ‘Shorts’ display. I don’t like shorts (except in summer, hmm), I dislike the concept, fast-videos after fast-food, fast, faster … to bring what? Emptiness, IMO

    Does that answer your question, @Emre Çitak :)

  13. ECJ said on September 4, 2023 at 3:17 pm
    Reply

    I despise YouTube Shorts. So much in fact, I use custom adblock rules in Brave Shields to remove that crap.

    youtube.com##ytd-grid-video-renderer:has([href*=”shorts”])
    youtube.com###dismissible:has([href*=”shorts”])

    1. Anonymous said on September 5, 2023 at 6:28 am
      Reply

      There’s an extension for Firefox and Chrome browsers called “Youtube-shorts block”, re-opens the video in a normal window. :)

      https://addons.mozilla.org/en-US/firefox/addon/youtube-shorts-block/
      https://chrome.google.com/webstore/detail/youtube-shorts-block/jiaopdjbehhjgokpphdfgmapkobbnmjp

      ps. say NO to Shorts, it only encourage shooting vertical-videos which doesn’t go well with many desktop displays… except when shooting vertical objects, such as ahem… pretty ladies. :)

  14. RG said on September 4, 2023 at 5:02 pm
    Reply

    Page source shows that ghacks is still using WordPress as the platform. Knowing, more or less, how it works at the DB level I am not sure how one could mess up comments this badly. It is actually very difficult.

  15. John G. said on September 4, 2023 at 6:14 pm
    Reply

    Google is the big leader of everything. Indeed it can actually buy Amazon, Disney, Netflix, X and whatever other company. I wonder what could happen if Google starts to build airspace ships in order to conquer the Moon. I bet that Google would be the first to offer free WiFi at the Moon. Please fix the comments.

    This comment is inside the article:
    [https://www.ghacks.net/2023/09/04/what-is-google-synthid-and-how-does-it-work/]

  16. DC said on September 11, 2023 at 10:52 am
    Reply

    This “analysis” is disappointingly shallow and trivial. Why not include other factors like job level, responsibilities, full-time/part-time, qualifications, etc.? Because the conclusions probably wouldn’t fit the current leftist/feminist narrative. You don’t find what you don’t look for.

  17. said on September 11, 2023 at 11:42 am
    Reply

    Misleading statistics.

  18. Kris said on September 12, 2023 at 9:10 pm
    Reply

    Wage should be based on the amount of time, works, thinking (brain > muscle), responsibilities etc

    Not skin pigmentation or your genitalia. There could be correlations, but not causations.

  19. Anonymous said on September 14, 2023 at 4:36 pm
    Reply

    “Google maintains that it provides a superior product”

    That is also Mozilla’s official position in defense of Google against the people, on that question of search engine abuse of dominant position by Google.

    The funniest part is that not only it’s false regarding actual competitors, but even among not-actual-competitors there are meta-search engines that use exactly the same engine, just minus the tracking, so Google is clearly the inferior one compared to those already. But maybe what Google is saying is that it is the surveillance and bubbling that would make their engine superior. False again even without considering the damage those do.

  20. bruh said on September 15, 2023 at 10:17 am
    Reply

    “Google increases Chromebook support to 10 years”

    I mean that’s great and all, but imagine using a browser-based, highly internet-dependent OS such as chrome. I’ve never used chromeOS but have seen it in person and read about it, just seems like ultra-limited user experience which relies on the concept that “most things can be done in a browser”.

  21. Anonymous said on September 15, 2023 at 11:11 pm
    Reply

    What is there to support? It just a glorified web browser.

  22. Anonymous said on September 24, 2023 at 5:18 pm
    Reply

    “Google launched Chromebooks in 2012 as low-cost devices and the company has had great success in the education world, especially in the United States.”

    Happy tracking for all those unsuspecting children. And help normalize surveillance for those young brains. Well done Google.

  23. Ich bin nur ein Verlierer said on September 27, 2023 at 4:50 pm
    Reply

    No, AltaVista’s Search engine wasn’t difficult to use in the mid-nineties, and Yahoo didn’t own AltaVista either during the 1990s. Yahoo!, was a Web Directory. I was alive then and have actually used those engines, during that era, I should know if they were easy to use. So tell the angels what you’ve seen, scarecrow shadow on the Nazarene.

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