It is unable to provide protection, for applications through its poor web application firewall (WAF), and the configuring rules and potential cost increases are difficult. There are also drawbacks related to monitoring data traffic and vulnerabilities to security issues. Review collected by and hosted on G2.com.

The user interface of Fastly Next Gen WAF is overwhelming and cumbersome to navigate. Its design lacks working making it time consuming to set up and manage rules. The customer support teams responsiveness is also lacking, which makes it difficult to obtain assistance, for refining configurations. Review collected by and hosted on G2.com.