On June 27, 2024, a small number of users globally may have noticed that 1.1.1.1 was unreachable or degraded. The root cause was a mix of BGP (Border Gateway Protocol) hijacking and a route leak.
  • kubica
    6•1 month ago

    I gave up their dns quite long ago, I was getting slow internet regularly and some day I discovered accidentally that it was their fault.

    • @lysdexicOPMEnglish
      6•1 month ago

      It’s interesting that the internet is packed with search hits of complains that Cloudflare’s DNS is slowing everything but Cloudflare representatives are quick to post followups pointing the finger everywhere else.

      • @BB_C
        5•1 month ago

        That’s like the most trivial of theories one can test for.

        Save response time every minute

        while true; do /usr/bin/time -f "%e `date`" dig '@1.1.1.1' +noall programming.dev &>>/tmp/dns_clf_perf.txt; sleep 60; done

        Then after a while (maybe a couple of days), check the worst numbers:

        sort -n /tmp/dns_clf_perf.txt |tail

        Run the same script with a different DNS server at the same time, and compare numbers.

        Dates included in case there are any patterns regarding the time of day/week.