Block a *subdomain.com with hostname file?

hello,

id like to know, the simple way on openwrt, eg to block a whole *subdomain.com range?

eg if i want to block a domain and all company's subdomains, without having handly one by one in the /etc/hosts file, how can i do it?

thank you

Add yo luci/net/dhcp/forwarders a forwarder like /example.com/ (no asterix)