Cloud flare is a web performance and security company that provides a variety of services to protect and enhance websites. 

Here are some key ways Cloud flare protects websites:

DDoS Protection

Mitigation: Cloud flare's network can absorb and mitigate Distributed Denial-of-Service (DDoS) attacks, which aim to overwhelm a website with traffic.

Global Network: Cloud flare's extensive global network helps distribute and mitigate the attack traffic, ensuring your website remains accessible.

Web Application Firewall (WAF)

Filtering: The WAF filters out malicious traffic and blocks attacks aimed at exploiting vulnerabilities in your web applications.

Rulesets: Cloud flare provides predefined security rulesets and allows for custom rules to protect against specific threats.

Content Delivery Network (CDN)

Caching: Cloud flare's CDN caches your website’s content on servers around the world, reducing load times and bandwidth consumption.

Security: The CDN also protects your origin server from being directly targeted by attackers.

Bot Management Detection: Cloud flare uses advanced algorithms and machine learning to distinguish between legitimate users and malicious bots. Mitigation: It can block or challenge bots that are scraping content, attempting brute-force attacks, or performing other malicious activities.