What is Vtiger Knowledge Base? Why should I host a knowledge base on my website? What are the benefits of hosting a knowledge base portal on my website? What are the prerequisites to host a knowledge base portal on my website? How to host a knowledge base portal on your website using a custom URL? What are the limitations of hosting a knowledge base portal on your website? What should I do if I buy a domain and want to use a custom URL to host my KB instead of the default CRM URL?