TLD means Top Level Domain, and it’s the suffix of a domain name.
A domain name is built with three parts, each one separated by a dot. The subdomain is on the left side. The second-level domain (SLD), brand, or a name that states the kind of business you have, comes in the middle. And the top-level domain (TLD) is at the end (.com, gov, .org, .net, .de).
Example: www.speaking-easy.com, “www” is the subdomain, “speaking-easy” the SLD, and “.com”, the TLD.
A plugin is a software piece that enables specific functions that you can add to your WordPress (WP) site to extend its possibilities.
Sites require constant maintenance, enhancement, growth, and different new needs have to be solved. Through plugins, you can add features to your website without being a programmer. Yes, you don’t have to write any code. They come ready to plug.
There’s a huge amount of plugins available for WordPress. The variety includes free and paid ones. The programming language used to write them is PHP to get along pretty well with WP sites.
Just the WP official repository has around fifty thousand available free plugins.