Error message:
ns1.cweiske.de reported Expire 1048576 : Expire is recommended to be between 1209600 and 2419200.
RFC 1912 says:
2.2 SOA records
Expire: 2-4 weeks are suggested values.
Test:
$ dig @ns1.cweiske.de +short SOA cweiske.de ns1.cweiske.de. hostmaster.cweiske.de. 1589436247 16384 2048 1048576 2560 | | | | +minimum | | | +expire | | +retry | +refresh +-serial
Links:
tinydns seems to set the expire time automatically to 1048576 (12.x days)