Stop using ridiculously low DNS TTLs, now
DNS is still one of the few services I host externally, currently on Cloudflare due to the quite high cost to keep DNS alive and running it in an anycast setup. To me anycast for DNS appears quite essential. But actually this can be solved by longer TTLs.
TTLs for most services are set to 1 day to improve privacy.
My idea was to run a hidden master setup as replacement, but DNS zone transfers are still quite expensive :/
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