Generate CAA DNS records in your browser — control which certificate authorities may issue for your domain.
<flags> <tag> <value>,flags 通常为 0。issue 允许签发普通证书、issuewild 管通配符、iodef 指定违规上报地址。💡 CAA(Certification Authority Authorization)限制哪些 CA 可为你的域名签发证书。添加后证书签发机构会检查该记录。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Purpose | declares which CAs may issue certificates for the domain | RFC 8659 |
| Tags | issue, issuewild and iodef are the standard properties | RFC 8659 |
| Inheritance | subdomains inherit the parent policy when unset | RFC 8659 |