| Subject | English | Welsh |
| comp., MS | authoritative name server | gweinydd enw awdurdodol (A DNS server that is responsible for the DNS records that are associated with a domain) |
| comp., MS | authoritative page | tudalen awdurdodol (A Web page that a site collection administrator has designated as more relevant than other Web pages. This is typically the URL of the home page for the intranet of an organization. The higher the authority level assigned to a page, the higher the page appears in search results. Also referred to as authoritative page) |
| comp., MS | authoritative server | gweinydd awdurdodol (Pertaining to, or characteristic of, a DNS server that hosts a primary or secondary copy of a DNS zone. When a DNS server is configured to host a zone, it is said to be authoritative for names within that zone) |