Whois & Analysis for certerassl.com

DigiCert, Inc. is a global digital security company and a leading global provider of digital trust headquartered in Lehi, Utah, with over a dozen global offices in various countries including: Australia, Belgium, Bermuda, Ireland, Japan, India, Germany, France, Netherlands, South Africa, Switzerland and United Kingdom.

As a certificate authority (CA) and trusted third party, DigiCert provides the public key infrastructure (PKI) and validation required for issuing digital certificates or TLS/SSL certificates.

These certificates are used to verify and authenticate the identities of organizations and domains and to protect the privacy and data integrity of users’ digital interactions with web browsers, email clients, documents, software programs, apps, networks and connected IoT devices.

Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP).

It uses encryption for secure communication over a computer network, and is widely used on the Internet.

In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL).

The protocol is therefore also referred to as HTTP over TLS, or HTTP over SSL.

Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network.

The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible.

In cryptography, a public key certificate, also known as a digital certificate or identity certificate, is an electronic document used to prove the validity of a public key.

The certificate includes information about the key, information about the identity of its owner (called the subject), and the digital signature of an entity that has verified the certificate's contents (called the issuer).

If the signature is valid, and the software examining the certificate trusts the issuer, then it can use that key to communicate securely with the certificate's subject.

In email encryption, code signing, and e-signature systems, a certificate's subject is typically a person or organization.

However, in Transport Layer Security (TLS) a certificate's subject is typically a computer or other device, though TLS certificates may identify organizations or individuals in addition to their core role in identifying devices.

TLS, sometimes called by its older name Secure Sockets Layer (SSL), is notable for being a part of HTTPS, a protocol for securely browsing the web.

A simple illustration of the Pagerank algorithm.

The percentage shows the perceived importance, and the arrows represent hyperlinks.