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A comment on Every device with FB app is now DDoSing recursive DNS resolvers. Parent comment

Re:Every device with FB app is now DDoSing recursive DNS res... by toast0 on Monday October 04, 2021 @10:44PM (#28754945)
.com (used for Facebook authoritative DNS) and .net (used for WhatsApp) servers serve glue records with a 2 day TTL, and domain holders don't get to choose TTL. (the root servers serve glue records for the TLDs with a 2 day TTL as well).

So, two days is the TTL you get for your NS records. Of course, it takes way more than two days for people to stop querying your old records. I gave up after 30-45 days.

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