What is this glossary for?
This glossary explains common technical terms related to web hosting, DNS, business email, servers and security. Each definition is written to support practical decisions, not only abstract understanding.
Available terms
DNSSystem that connects a domain name to services such as a website, email server or application.SPFDNS record that indicates which servers are allowed to send email for a domain.DKIMSignature mechanism that helps recipients verify that an email was not altered.DMARCDNS policy that indicates how to handle messages that fail SPF or DKIM and where to send reports.SSL/TLSTechnology that encrypts the connection between the browser and the web server.TTLHow long a DNS response may remain cached before being requested again.Serveur dédiéPhysical server reserved for a single client, project or technical environment.ColocationService that hosts owned server hardware in a controlled environment with suitable network and power.MXDNS record that indicates which servers receive email for a domain.SauvegardeCopy of data used to restore a website, database or service after an incident.