olemus
DNS-tsoonifaili kirje, mis vastab olematutele domeeninimedele
= a record in a DNS zone that can match queries for domain names that do not exist

ülevaateid
https://kb.porkbun.com/article/94-what-is-a-wildcard-dns-record
https://icannwiki.org/Wildcarding
https://en.wikipedia.org/wiki/Wildcard_DNS_record

standardid
https://tools.ietf.org/html/rfc1034
https://tools.ietf.org/html/rfc4592

turvalisus
https://w00tsec.blogspot.com/2014/03/wilcard-dns-content-poisoning-xss-and.html
https://news.netcraft.com/archives/2009/02/17/new_phishing_attacks_combine_wildcard_dns_and_xss.html