Very cool project! It's interesting to see how different DNS providers cap the maximum TTL. Google uses 21600s Quad9 uses 43200s Cloudflare does not cap at

Very cool project! It's interesting to see how different DNS providers cap the maximum TTL. Google uses 21600s Quad9 uses 43200s Cloudflare does not cap at all! And my personal unbound uses 86400s (which is the default)