An A (Address) record is the most fundamental type of DNS record. It maps a domain name to the IPv4 address of the server hosting the website. For example, an A record might point 'example.com' to '93.184.216.34'. When a user types your domain into their browser, DNS resolvers look up the A record to find which server to connect to. A domain can have multiple A records for load balancing across several servers.
FAQ
What is an A record?
An A record is a DNS entry that points your domain name to the IPv4 address of the server where your website is hosted.