Many WordPress site admins only deal with DNS once every blue moon. Mainly when buying a new domain, setting up a new website, and migrating to a new web host. However, since DNS is the core of the internet, and a small mistake in the DNS records can result in visitors not being able to access your website or sending you emails, it is important to have a basic understanding of how it works.
The good news is that DNS is very easy to understand and manage. This article explains all WordPress site owners and administrators need to know about DNS and DNS records.
What is DNS?
DNS stands for Domain Name System. It is a hierarchical naming system the internet uses. Its role is to translate easy to remember domain names such as http://www.wpwhitesecurity.com to IP (Internet Protocol) addresses that computers understand, such as 192.124.249.168.
Why Do We Need DNS?
Every computer, smartphone or device connected to the internet or a network has a unique IP address. For example the website http://www.wpwhitesecurity.com is hosted on a web server with the IP address 192.124.249.168.
Since we can easily remember a website’s name (www.wpwhitesecurity.com) but not an IP address (192.124.249.168), DNS is
Source: https://managewp.org/articles/18322/dns-for-wordpress-sites-admins-the-ultimate-guide
source https://williechiu40.wordpress.com/2019/01/23/dns-for-wordpress-sites-admins-the-ultimate-guide/
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