There are several security benefits to having a firewall in place for your website.
A website firewall offers robust protection against Distributed Denial of Service (DDoS) attacks, which can overwhelm your website with traffic. To maintain availability and performance, a website firewall absorbs and mitigates these attacks.
Utilizing a Web Application Firewall (WAF) specifically, your website will also be protected from security threats such as SQL injection attacks and cross-site scripting. Those things sound complicated and nerdy (and they are!) but having a WAF in place means you won’t have to lose sleep over those technical complexities.
Finally, a website firewall can detect and block malicious bots that frequently try to exploit vulnerabilities related to your website. The risk of website abuse and data theft therefore becomes significantly reduced.