Scan of DNSSEC signed delegations for all top level domains

3rd of February 2017 / / @powerdns_bert

Context & tooling used:

A quick not too precise (+-10%) scan of number of signed records in various top-level zones. Note that NSEC estimations are particularly rough. Raw data is in zones.js.

For comparison, official numbers for some TLDs can be found on Even more numbers are on