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A certificate authority (CA) is a trusted organization that issues digital certificates for websites. Certificate authorities validate a website domain and, depending on the type of certificate issue TLS/SSL certificates that are trusted by web browsers like Chrome, Safari and Firefox.
In cryptography, a certificate authority or certification authority (CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate.
A certificate authority is a company or organization that acts to validate the identities of entities (such as websites, email addresses, companies, or individual persons) and bind them to cryptographic keys through the issuance of electronic documents known as digital certificates.
A certificate authority (CA) is a trusted entity that issues digital certificates to authenticate content sent from web servers. Learn about CAs here.
A Certificate Authority (CA) is a trusted third-party that enables secure communication and transactions to occur online. CAs are also known as PKI Certificate Authorities because they issue digital certificates based on public key infrastructure (PKI).
A certificate authority (CA), sometimes called a certification authority, is an entity that validates the digital identity of websites, email addresses, companies, or individual persons. They do this using cryptographic assets called digital certificates, which provide a way to prove authenticity.
What is a certificate authority? As the name implies, a certificate authority issues certificates to authorized people or organizations. You may not know these companies explicitly, and if you've never set up a website, you've never contacted them directly.