How can I create a website that is completely secure from hackers?

 Creating a website that is completely secure from hackers is a challenging task, as new vulnerabilities and attack methods are constantly being discovered. However, there are several best practices that can help to improve the security of a website:

1. Keep software up to date: Regularly update all software, including the operating system, web server, and any additional software used on the website.
2. Use strong authentication: Use strong and unique passwords for all accounts, and use two-factor authentication when possible.
3. Use encryption: Use encryption to protect sensitive data, both in transit and at rest.
4. Use a web application firewall (WAF): A WAF can help to protect against common web-based attacks, such as SQL injection and cross-site scripting (XSS).
5. Regularly monitor and test: Regularly monitor the website for vulnerabilities and test it against known attack methods to identify and address any weaknesses.
6. Implement a vulnerability management program: Regularly assess and address vulnerabilities in the website and the underlying systems.
7. Educate users: Educate the users about the risks of phishing, social engineering and other types of attacks and how to protect themselves.
8. Have a plan in place: Have a plan in place for responding to security incidents and a team responsible for incident response.

It's worth noting that even with all these security measures in place, it's hard to guarantee that a website will be completely secure from hackers, as new vulnerabilities and attack methods are constantly being discovered. However, implementing these best practices can help to reduce the risk of a successful attack.