Why do I have access to twitter when I have blocked Social Networking, and my stats show the site as blocked?

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8 comments

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    rotblitz

    What browser are you using? Do you use AVG or Avast AV?

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    aysilver

    I'm using Microsoft Edge (new Chromium version) on Win10, and use ESET anti-virus, not AVG or Avast.

    Why would any of that make a difference? I thought OpenDNS worked at the DNS level, so the blocking happens outside of my machine.

    Thanks

    P.S. Since restarting my PC, I can now load the Twitter home page, but very little content shows up. The central panel shows a message saying "Something went wrong." Still puzzled how even the basic page loads.

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    rotblitz (Edited )

    “Why would any of that make a difference? I thought OpenDNS worked at the DNS level, so the blocking happens outside of my machine.”

    Because these are things which can circumvent or ignore your DNS settings. And yes, correct, OpenDNS works in the cloud only, but only if your DNS queries reach it. This doesn’t seem to be always the case.

    Copy & paste the complete plain text output of the following diagnostic commands to here:
    nslookup -type=txt debug.opendns.com.
    nslookup www.twitter.com.
    nslookup whoami.akamai.net.

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    aysilver

    opendns lookup

    Server: UnKnown
    Address: 192.168.1.1

    debug.opendns.com text =

    "server m41.lon"
    debug.opendns.com text =

    "flags 40020 0 50 1800000000000000000039505007FC041089CD3"
    debug.opendns.com text =

    "originid 426773660"
    debug.opendns.com text =

    "actype 2"
    debug.opendns.com text =

    "bundle 12734188"
    debug.opendns.com text =

    "source 81.174.251.160:45351"

    twitter lookup

    Server: UnKnown
    Address: 192.168.1.1

    Non-authoritative answer:
    Name: www.twitter.com
    Addresses: 146.112.61.104
    146.112.61.104

    akamai lookup

    Server: UnKnown
    Address: 192.168.1.1

    Non-authoritative answer:
    Name: whoami.akamai.net
    Addresses: 2a04:e4c0:10::70
    208.69.34.70

    Thanks again

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    rotblitz (Edited )

    This looks all good.

    These are the domains being used by Twitter at their portal page.
    https://www.webpagetest.org/result/200614_F5_277a6bceeb872a4bf36d8d1a01532d9c/1/domains/

    Now post also the output of
    nslookup twitter.com.
    nslookup api.twitter.com.
    nslookup twimg.com.

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    aysilver

    twitter.com
    Server: UnKnown
    Address: 192.168.1.1

    Non-authoritative answer:
    Name: twitter.com
    Addresses: 146.112.61.104
    146.112.61.104


    api.twitter.com
    Server: UnKnown
    Address: 192.168.1.1

    Non-authoritative answer:
    Name: api.twitter.com
    Addresses: 146.112.61.104
    146.112.61.104


    twimg.com
    Server: UnKnown
    Address: 192.168.1.1

    Name: twimg.com

     

    Thanks again

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    rotblitz (Edited )

    Again all fine. It indicates that Twitter should be blocked for you. If not, then something else like your browser or another app is interfering with your DNS or web traffic. Or maybe your local caches, especially your browser cache. No idea what.

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    aysilver

    rotblitz OK, thanks anyway. The main thing is that the site is unusable as it is now, so the fact that you can see the bare bones of the main page isn't the end of the world. I was more bothered that my settings were wrong.

    Thanks again for all the help

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