The A record is a DNS resource record. Its main task is to link the domain name to an IP address (IPv4). So, whenever you want to visit a particular website, your browser will need exactly the A record. That way, it will know where the website is hosted, and it will be able to access it.
Managed DNS is beneficial for everyone who wants to improve the user experience. Let’s explain a little bit more about it and what does it mean.
Managed DNS is a service delivered from a DNS provider. It has established a system of name servers that you can benefit from. You can host your DNS records and improve your website or the availability and performance of an application.
DNS is the short acronym for Domain Name System. It is an organized namespace that works upon a decentralized model. It helps with navigating queries and finding the host they are seeking for. It has to provide the answer (like A record, AAAA record) and also to be performed quickly. The Domain Name System appears to replace the HOSTS.txt file that held all hostnames. It was just not efficient enough. For its speed and scalability, the DNS is superior.