// glossary entry

WAF (Web Application Firewall)

Definition: A protective layer between the Internet and a web application that detects and blocks malicious requests, such as SQL injection attempts, XSS attacks, or massive brute-force attacks.

Everyday analogy: Like a bouncer at a club. Only lets in those who meet the venue’s standards, even if everyone looks the same.

How we use it: For security-critical sites, we recommend a WAF (such as Cloudflare or a server-side solution). It also protects against zero-day vulnerabilities before patches are available.

// synonyms

  • WAF
  • Web Application Firewall
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