Unofficial and incomplete lists of various domain names, for research purposes only.
Registrant ID and date of expiration from the Whois for tld-cz.txt. Contains also some historical data. If a domain from tld-cz.txt is not in whois-cz.txt with expire_at > current_date it should be considered as not existing.
Have a list of domains you'd like to add? Feel free to create a pull request!
Here's a short how-to:
^[a-z0-9-]+\.tld$, so for example
grep --only-matching --perl-regexp "[a-z0-9-]+\.cz" data.txt > yourlist.txt)
cat tld-cz.txt yourlist.txt | sort | uniq > tld-cz-new.txt
tld-cz-new.txt, rename to
tld-cz.txt, pull request it