$TTL        1800
@       IN      SOA     nsd.klape.eu. belobrad.slam.cz. (
                        2019041501       ; serial, todays date + todays serial #
                        1800              ; refresh, seconds
                        1800              ; retry, seconds
                        1800              ; expire, seconds
                        1800 )            ; minimum, seconds
;

vzdelavamepedagogy.cz. 1800 A        109.105.49.240
* 1800      CNAME        vzdelavamepedagogy.cz.