Domain Name is the public address which is used to identify a Website on internet . Every website is linked with IP address which is in numerical form so it is difficult for user to remember it . Basically Domain names are Human readable version of IP address. Domain Name is originated from right to left .It is divided into two parts :
Top level Domain – For example “www.onlinetroubleshooters.com ” In this .com part is considered as Top level domain that basically represents commercial (in this example ) .com , .in , .org , .net etc are Top level Domain.
Second level Domain – onlinetroubleshooters defines the Second level Domain .

About Domain Name and Universal Resource Locator (URL) :

Many people got confused between Domain Name and Universal Resource Locator. Domain name appears in User Resource Locator(URL) . Domain name is the name of the website whereas URL is the extended path.

Here, you can see red line marked is URL & yellow marked is a Domain Name.

A Website , Domain Name and Web Hosting services all three factors are necessary to get online presence . Choosing Domain name is one of the important decision to establish an online presence . To target large audience and search engine , Domain Name should be appropriate .

Here are Some Tips which should be kept in mind while choosing Domain name :

Complete Research : Find similar site and also check your competitor site what Domain name they are using . You can also search Domain Name by the keyword according to the name of the company . Complete research is necessary to target more and more  users to your website .

Easy to type and remember : Choose Domain name which can be easy to type and remember by people easily . Avoid odd spelling of words , multiple hyphens or other characters , numbers etc . Users will find difficult to  write and remember these Domain name and get confused and mistype it .  Make it easy for people to remember it and tell their friends about your website.     

Short Length : The Shorter  your Domain name is , there is less chance of misspelling of words and easy for people to remember it . Yeah , Of course competition is increasing day by day . There is very less chance that the Domain name you want is available . Another user already use it as Domain name for his website . You can also add adjective or verb  in front of it in case it is not available .

Use .com extension : These Days .com is in trend . Mostly people use it because it user friendly and has more and more traffic . With the help of .com Domain , you can share your information all over the world easily . If you use other extension like .info ,.net , .org etc , you have to do extra work to get remember to the people that you are using different extension .

Ignore Trademarked Domain name : Most of the people use trademarked Domain to confuse people they may face legal challenges and give up the Domain . if you want to play safe . so avoid Trademarked Domain name .

Avoid Domain Name identical to your Website :  Do not use Domain name similar to your website . you can hyphenate a phrase or may add  “my “or other preposition . This will provide you an advantage if some of the variations , they are redirected to your main site .

Avoid Numbers : It is difficult for the people to remember number instead they can remember string easily . If your company name has number also then buy both versions (digits and words ). And redirect both .

Consider these points while choosing  to get appropriate and suitable Domain name for your company