, CAA records are supported in the BIND DNS server (as of version 9.10.1B),[REF] the NSD authoritative DNS server (as of version 4.0.1),[REF] the Knot DNS server (since version 2.2.0) [REF].
, CAA records are supported[REF] by Amazon, Certum, Comodo, DigiCert, Entrust, GlobalSign, GoDaddy, Izenpe, QuoVadis, Starfield GoDaddy, StartCom WoSign, Let's Encrypt, Symantec, GeoTrust, Thawte, T-Telesec, Trustwave, WoSign.