DNS Cache Users

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  1. Posts : 1,097
    Windows 10 Home x64 Version 1809 (OS Build 17763.437)
       #1

    DNS Cache Users


    Do Google Chrome, MS Edge, & IE all use the same DNS Cache? And is there any wisdom to periodically flushing the cache just as a normal maintenance routine?
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  2. Posts : 5,201
    Windows 11 Home
       #2

    CWGilley said:
    Do Google Chrome, MS Edge, & IE all use the same DNS Cache?
    Yes, unless you use an extension, which lets to use a different DNS or you use dnscrypt.


    CWGilley said:
    And is there any wisdom to periodically flushing the cache just as a normal maintenance routine?
    That depends on various factors, like how fast an reliable is your internet connection.
    Flushing the cache will force Windows to rebuild it, which can slow down loading webpages.
    If you have a fast connection, you do not need to use caching, there is virtually no difference.
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  3. Posts : 56,114
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #3

    TairikuOkami said:
    Yes, unless you use an extension, which lets to use a different DNS or you use dnscrypt.



    That depends on various factors, like how fast an reliable is your internet connection.
    Flushing the cache will force Windows to rebuild it, which can slow down loading webpages.
    If you have a fast connection, you do not need to use caching, there is virtually no difference.
    Just a note. If you change your DNS server, say go to Google (8.8.8.8) or switch to OpenDNS or any other than your default ISP, it's a good idea to flush the DNS. It will get rid of any possible "redirects" from previous DNS and will rebuild.

    Flush DNS Resolver Cache in Windows 10 - Windows 10 Network Sharing Tutorials


    ipconfig /flushdns at Admin command prompt.
    Last edited by Brink; 02 Apr 2017 at 17:52. Reason: added tutorial link for more info
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  4. Posts : 1,097
    Windows 10 Home x64 Version 1809 (OS Build 17763.437)
    Thread Starter
       #4

    Thanks to you both for the replies. After a couple of odd incidents, this morning I did flush it with CCLeaner and there's a noticeable improvement in Edge's performance.

    It's not likely I will change ISPs. Living in a one horse town, I don't have a lot of choices and so far CenturyLink has done a good job. Local cable company can't keep the TV connected, I'm not going to try doing financial activities over the web with something that unreliable.
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  5. Posts : 6,977
    windows 10
       #5

    You dont need to change ISP to change your dns using opendns or google are both faster servers and have built in security your isp doesnt have opendns will block a lot of bad sites
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  6. Posts : 1,097
    Windows 10 Home x64 Version 1809 (OS Build 17763.437)
    Thread Starter
       #6

    Hmmm. That may be worth looking into Samuria. Thanks you.
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  7. Posts : 56,114
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #7

    Samuria said:
    You dont need to change ISP to change your dns using opendns or google are both faster servers and have built in security your isp doesnt have opendns will block a lot of bad sites
    CWGilley said:
    Hmmm. That may be worth looking into Samuria. Thanks you.

    Yes, that's what I meant. Poorly worded on my part. Your CenturyLink is your ISP, and if not changed in your lan settings, will use their DNS, with whatever they decide is best for you. And reap the rewards. Not saying they are sinister, but they could redirect you if they wanted to. The old 404 trick....you type in an invalid site, they catch the 404, and send you to some paid advertiser. I use OpenDNS, with Google as third & fourth in line. Both ipv4 and ipv6. Cost you nothing to try, you can always put them back.
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  8. Posts : 1,097
    Windows 10 Home x64 Version 1809 (OS Build 17763.437)
    Thread Starter
       #8

    You make a compelling case. I will bone up on it. It'll give me something to do at 04:00 in the morning.
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  9. Posts : 5,201
    Windows 11 Home
       #9

    You can use GRC's to test which DNS is the fastest (closest) to you.

    Top 10 Best Public DNS Servers & Fastest DNS Servers 2017
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  10. Posts : 56,114
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #10

    TairikuOkami said:
    You can use GRC's to test which DNS is the fastest (closest) to you.

    Top 10 Best Public DNS Servers & Fastest DNS Servers 2017
    That is a good one. Hasn't been updated for a while, but probably Gibson saw no need cause the premise hasn't changed much either.

    Takes a little tweaking and interpretation, but when you understand it, it sheds a lot of light on what's going on. Not just speed.
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