A subdomain is an alias of your domain. Usually, a subdomain will contain a more specific word or name than your entire website. blog.domain.com is a subdomain of www.domain.com. The word “blog” in front of “domain.com” is what is called a subdomain. Subdomains are usually used so that the content in it is not mixed with the main content of the user’s website. If you have an online store but you also want to provide education about the goods you market, you can create a “blog” subdomain. With this subdomain, you will not be confused about placing articles without destroying the aesthetics of your online store. Not only are they useful for separating custom content from your main domain, subdomains have other benefits. The uses of subdomains include:
- Search engines see subdomains as unique websites that are not linked to your main domain. This means that your subdomain’s ranking can also go up and overtake the main domain. Of course, this means you can drag down competitors’ websites.
- If used correctly, subdomains can also be indexed quickly and benefit from the main domain.
In addition to subdomains, domains are also generally divided into three categories, namely Top Level Domains, Second Level Domains, and Third Level Domains.
- TLD or Top Level Domain
Indeed, Top Level Domain is a domain extension that is behind the website name. TLD itself is a very popular extension. Among them, .com, .net, .gov, .org and others. Many prefer to use Top Level Domains for various reasons. One is because it is easier to remember and more common. This reason is usually used by websites that are more personal or do not refer to a particular organization. Top Level Domains also make hosting/client websites have a higher ranking on the Google search engine.
- SLD or Second Level Domain
SLD is the domain name you registered. How to read the domain is from the very back, then continue to the front. Well, in the ervanIT.co.id domain, the name “ervanIT” is what is called SLD. More simply, you can interpret the SLD as the name of your website.
- Third Level Domain
Or what is often referred to as a subdomain. It is located at the very front of the unity of the URL of the domain name that you have. For example, “www.ervanIT.co.id”, then “www” is categorized as a Third level domain.
Difference between TLD and gTLD Domain
There are two types of TLDs or domain extensions that are often used, namely gTLD and ccTLD. gTLD or Generic Top Level Domain is a domain with a common extension and is the most widely used by users in the world. Domains of this type have the suffix .com, .net, .biz, .org, .edu, and others.
- .com: used for commercial purposes
- .biz: used for business purposes
- .org: used for organizational purposes
- edu: used for educational/educational purposes
ccTLD – Country Code Top Level Domain means, the domain will carry the identity of the country and show that the website is intended for people residing in that country, such as domains with the initials .id, .sg, .au.
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