Underscores Not Allowed in Domain Names
Following CA/B Forum Ballot SC12, publicly trusted CAs cannot issue SSL/TLS certificates for subdomains containing underscore (_) characters.
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Tag: DNS
What is DNS over HTTPS (DoH)?
DNS over HTTPS (DoH) uses the HTTPS protocol for sending and retrieving encrypted DNS queries and responses.
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An Introduction to Certification Authority Authorization (CAA)
SSL.com’s in-depth look at Certification Authority Authorization (CAA) and how it can help protect your website, your business – and your online reputation.
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Created by the Internet Engineering Task Force (IETF) and described in RFC 6844, CAA lets the owner of a domain name authorize designated and specific Certification Authorities (CAs) to issue SSL certificates for their domain name.
