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Learn What Whitelisting is and Why it’s Important

If you’re asking, what is whitelisting, you may have heard the term but don’t know what it means or how it pertains to business. A whitelist is just a register or list of entities that are recognized or approved for use by users and administrators. To make things simpler, you can create a whitelist for the server, which only allows certain things to be used or accessed. If it isn’t on the list, it cannot be used. If you find that certain things need to be used and cannot be, you can quickly add items to the list and take them away when necessary.

At Comodo, we make whitelisting easy and want to help you understand what it is and why you need it. There are four primary types of whitelists, including:

  • Applications
  • Programs
  • Emails
  • LAN/Server


If you use a free email provider, such as Gmail, Hotmail or Yahoo, you may find that some important mail goes to the spam folder. While you can always change it through the provider, you can also use software to ensure that your emails, domains, websites and URLs are always available when you need them.


Most people have no idea how whitelisting can help servers. Network admins can set up a whitelist to control who and what is allowed on the network. While there are other options, such as firewalls and encryption, they may not be enough or may not be practical in your setting.


We understand that programs are necessary to do business and be productive, and our product can help ensure that the software you need runs smoothly without aggravating pop-ups or error messages.


Almost everything you run on a device or computer uses an application to do so. With our product, you’ll be able to approve and deny applications, so you aren’t at risk for as many malware and virus attacks. Contact us to learn more about whitelisting.