WordPress Recipe What is Domain Name
For beginners, it is wondered, " What is A domain ? "A domain is an address on the Internet, it identifies the location ...
primary domain
WordPress Recipe 
Advance Preparation 7. Security Measures
This is the security from hardware to software. At the ending part, there are the countermeasures against hackers. Please refer to it.
Advance Preparation 6. Points on the contract
At the contract with web hosting service, it's no problem following to the navigation. But I'll tell you the points on the contract as a person with experience.