Web ACL

Description

AWS WAF component for defining and applying web traffic filtering rules across protected resources.

Features

• Rule-based traffic filtering
• Customizable actions (Allow, Block, Count, Challenge)
• Integration with AWS services (CloudFront, ALB, API Gateway)
• Support for IP sets and regex pattern matching
• Real-time metrics and logging
• Geolocation-based filtering
• Rate-based rules for DDoS mitigation

Limitations

• Limited to AWS ecosystem
• Complex configurations may require expertise
• Potential false positives/negatives
• Latency impact on high-traffic applications
• Rule limit per Web ACL
• Cost increases with traffic volume

Use Cases

• E-commerce platform implementing Web ACL to block malicious bot traffic and protect customer data during checkout process