A normal domain name looks like www.bigwebfaq.com or just bigwebfaq.com.
As you can see, it is made up of three parts called Labels. Labels are separated by the dots.
They are read from left to right but work from right to left. They start with a TLD (Top Level Domain). In this case the TLD is com.
The TLD is then followed by subdomains.
- Bigwebfaq is a subdomain of com.
- Www is a subdomain of bigwebfaq.
The first subdomain after the TLD is called the Second Level Domain Name. Bigwebfaq is the Second Level Domain Name. Anything after that such as www is just a subdomain.
There can be up to 127 levels of Labels. Each Label can be up to 63 characters in length. The full domain name may not exceed 253 characters.