Route 53

Route 53 is Amazon’s global Domain Name System (DNS) service. The primary purpose of DNS is to translate human-readable domain names (such as example.com) into IP addresses. Here’s a simplified version of how it works: when you enter the domain name example.com into your web browser, your computer sends out a query to its configured DNS server asking for the IP address of that domain. The DNS server then sends the query to the domain’s authoritative DNS server—the one that’s in charge of the example.com domain name. The authoritative DNS server responds with the IP address for example.com. This process of translating a domain name to an IP address is called name resolution.

Resource Records

Name resolution goes beyond just mapping domain names to IP addresses. DNS can store mappings for different types of data, including IPv6 addresses, mail servers, and even arbitrary text. When you send an email to someone, DNS provides the lookup mechanism...