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A domain is the unique and exclusive name that is given to a website on the Internet so that anyone can visit it.
This is the definition that would summarize the concept of “domain” in a few words, but I want to explain in much more detail what a web domain is and what it is for. You will see that the thing has crumb, but you can be calm because I am going to show it to you in a very clear and simple way, you will see it.
3 very clear main advantages of a web domain:
- The domain of a site is much easier to remember than its IP (imagine calling your friends by their postal addresses instead of by name).
- It allows having many more sites on the Internet, because today many web domains can share for example the same IP of the web server where they are hosted (then internally the server knows which domain is being accessed).
- It is much more flexible for example when changing your site from one web hosting to another, because the IP can change but the domain will remain the same (imagine telling everyone that you have changed IP).
How does it work?
You know the domain of the site you want to visit and you only need a system that is responsible for “translating” that domain into an IP that your web browser can understand. And that is precisely what the DNS or Domain Name System does
Well, very simple.
So the DNS server, as it would be simpler, the domain would be the “phone book” used by web browsers to know where the site you are looking for by your domain name is.
Life cycle of a domain
Yes, the domains have a life cycle and some states that are happening depending on whether it has been registered, if it has expired, etc. And believe me it is important that you know them well to avoid “confusions”:
- Available: here the domain “is free” and you can register it to be yours.
- Registered: once you register a domain for it (minimum for 1 year and maximum for 10 years), and nobody else can register it.
- Active: soon after registering the domain becomes active and you can use it during the years you have registered (from 1 to 10 years). You can always renew the domain for more years to prevent it from expiring.
- Period of Grace (renew grade period): if it has not been renewed while it was active, in this period of time the domain stops working although it can be renewed by the usual renewal price (not all types of domains have this grace period ).
- Period of Punishment (redemption grace period): if it has not yet been renewed, in this period of time the domain still does not work although it can be renewed for a price much higher than the usual renewal price (not all types of domains have this period as punishment).
- Elimination period (pending delete): if this period of time reaches the domain can no longer be renewed and simply waits to be released to be available again (not all types of domains have this elimination period).
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