Alibaba Cloud · Security

Web Application Firewall (WAF)

Alibaba Cloud’s Web Application Firewall acts as a gatekeeper for web apps, filtering traffic to block common attacks like SQL injection and cross-site scripting. It operates on a pay-as-you-go model, meaning you only pay for the resources consumed rather than committing to a fixed monthly contract. This setup handles the heavy lifting of inspecting HTTP requests and mitigating threats before they reach your backend servers.

This service suits teams already operating within the Alibaba Cloud ecosystem who prefer flexible billing over upfront commitments. The main friction point is the complete absence of a free tier, which makes it less attractive for small projects or developers wanting to test WAF capabilities without incurring costs. You need to budget for every request processed, as there is no zero-cost entry point to evaluate its effectiveness.

• Free tier No
• Pricing Pay as you go
• Regions 8 · 4 continents
• SLA uptime 99.99%
• Compliance 10 certifications
• Provider health A