DNS/APIについて、ここに記述してください。

getdns: https://getdnsapi.net/

Stubby: https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Daemon+-+Stubby

https://dns-api.org/

Cloud DNS API Reference https://cloud.google.com/dns/docs/reference/v1/

https://api.cloudflare.com/#getting-started-endpoints

https://www.tech-otaku.com/web-development/using-cloudflare-api-manage-dns-records/ Using the Cloudflare API to Manage DNS Records

https://docs.certifytheweb.com/docs/dns-cloudflare.html

https://bjornjohansen.no/wildcard-certificate-letsencrypt-cloudflare

https://www.conoha.jp/docs/paas-dns-update-a-record.html

https://github.com/joohoi/acme-dns Limited DNS server with RESTful HTTP API to handle ACME DNS challenges easily and securely.