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/


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