The hierarchy of domains descends from the right to the left label in the name; each label to the left specifies a subdivision, or subdomain of the domain to the right. For example: the label example specifies a node example.com as a subdomain of the com domain, and www is a label to create www.example.com, a subdomain of example.com. Each label may contain from 1 to 63 octets. The empty label is reserved for the root node and when fully qualified is expressed as the empty label terminated by a dot. The full domain name may not exceed a total length of 253 ASCII characters in its textual representation. Thus, when using a single character per label, the limit is 127 levels: 127 characters plus 126 dots have a total length of 253. In practice, some domain registries may have shorter limits.
Lynda is one of the most versatile websites on the list that provides tutorials on a wide variety of subjects. The subscription-based website offers a wide range of video tutorials that will teach you how to design websites. Its basic HTML essential training video covers the basics of HTML programming that includes the fundamentals, text, images, multimedia, HTML5, metadata, CSS integration and more.
This community is built on the Peer 2 Peer University platform. The website offers lots of free web designing training courses in HTML, CSS, and PHP. Over the course of your training, you are asked to complete user-generated tests with varying toughness. One of the great things about this website making course is its active community that allows a newbie to connect with advanced students.