What is the best tool for scanning website vulnerabilities?

[ForumKali2016]

I have never used kali linux
With what to scan the vulnerability of websites?

[Fred Sheehan]

Now that would depend on which type of web vulnerability you are actually looking for..

burp suite or owasp zap give you a GUI to help you when your starting out, and later, when your more experienced, you might use tools from a shell, such as metasploit or sqlmap.