The Domain Name System (DNS) is pretty extensive, and DNS records help for its easier management. So, for every beginner it is essential to know and understand the fundamental ones. Here is a short but very useful cheat sheet with the most common DNS records!
A brief introduction to DNS records
DNS record is a simple instruction related to a particular domain name. The entire collection of records is gathered in a zone file in the DNS zone. The authoritative DNS server of the specific domain name stores all of this information. Each record has its purpose and function. That is why all of them are very fundamental for the proper operation of the domain.