> ## Knowledge Base Index
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> Use this file to discover available pages before exploring further.
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# What is a DNS Cache?

|| What is a DNS Cache?
> A DNS cache (sometimes called a DNS resolver cache) is a temporary database, maintained by a computer's operating system. A DNS cache contains records of all recent visits and attempted visits to Websites and other Internet domains.

| The Purpose of DNS Caches :

> The Internet relies on the Domain Name System (DNS) to maintain an index of all public Websites and their corresponding IP addresses. Every time a user visits a Website by its name, the user's Web browser initiates a request out to the Internet, but this request cannot be completed until the Web site name is converted into an IP address. That conversion process (called : **name resolution**) is the job of DNS, and it takes time. A DNS cache attempts to speed up the process by handling the name resolution before the request is sent out to the Internet.