10 Best Web Application Firewalls (WAF) in 2025

Best web application firewalls for 2023

Securing web applications has become more crucial with the growing numeral of data breaches and cyber crimes. Web application firewalls (WAFs) have emerged as vital security tools that protect web applications from attacks. A good WAF can detect and prevent malicious traffic before it reaches the application, ensuring the security and availability of your website.

In this context, exploring the best web application firewalls for 2025 and understanding their features, strengths, and limitations is essential. This knowledge can help you choose the most suitable WAF for your web application and keep your online presence secure.

What is WAF

A Web Application Firewall (WAF) is a safety resolution that protects web applications from various cyber threats. It operates between a web application and the internet, monitoring and filtering the traffic between them. A WAF can catch and stop threats like SQL injection, cross-site scripting (XSS), and other application-layer attacks.

It can also protect against distributed denial-of-service (DDoS) threats. WAFs use a combination of rule-based and behavioral-based approaches to detect and prevent threats. WAFs are becoming increasingly important as more organizations rely on web applications to conduct their business and as the number and complexity of cyber threats continue to grow.

1. StackPath Web Application Firewall

StackPath is a cloud-based web application firewall that provides robust security features for web applications. Its comprehensive security capabilities help protect websites and applications from attacks, including DDoS, SQL injection, and cross-site scripting (XSS).

Here are a few of the unique characteristics of StackPath’s WAF:

  • Custom Rules: StackPath lets you make custom rules to bar certain kinds of traffic unique to your application.
  • Advanced DDoS Protection: StackPath’s advanced DDoS protection can identify and mitigate large-scale attacks.
  • Real-time Threat Intelligence: StackPath’s WAF uses real-time threat intelligence to block malicious traffic before it reaches your application.
  • Bot Management: StackPath’s bot management capabilities can detect and block bots, ensuring that only legitimate traffic reaches your website.
  • SSL/TLS Encryption: StackPath’s WAF offers SSL/TLS encryption for secure client and server communication.
  • Content Delivery Network (CDN): StackPath’s CDN can cache static content and distribute it globally, resulting in faster load times for your website.
  • Analytics and Reporting: StackPath provides detailed analytics and reporting to help you monitor the security of your application and identify potential threats.
  • API Access: StackPath’s WAF has API access, allowing you to automate and integrate security workflows with your application.Price starts at $60 per month

StackPath’s WAF delivers a complete set of security features to help shield web applications from various hazards. Its advanced DDoS protection, real-time threat intelligence, and bot management capabilities make it a reliable option for organizations looking to secure their web applications.

2. Imperva Cloud WAF

Imperva Cloud WAF is a web application firewall that offers comprehensive security features to safeguard websites and applications from online hazards. It uses machine learning and other advanced technologies to detect and block malicious traffic, ensuring the safety and availability of your web applications.

Here are a few of the crucial features of Imperva Cloud WAF:

  • Automatic Learning: Imperva Cloud WAF can automatically learn the behavior of your application and create custom rules to block malicious traffic.
  • Advanced Bot Protection: Imperva’s WAF uses advanced techniques to identify and block bots, including fingerprinting, behavioral analysis, and JavaScript challenges.
  • DDoS Protection: Imperva Cloud WAF provides advanced DDoS protection to ensure your application remains available during attacks.
  • Compliance: Imperva’s WAF helps you achieve compliance with regulatory norms like PCI DSS, HIPAA, and GDPR.
  • Custom Rules: Imperva Cloud WAF allows you to build custom rules to stop particular kinds of traffic and protect your application from unique threats.
  • Real-time Analytics and Reporting: Imperva Cloud WAF provides real-time analytics and reporting to help you monitor the security of your application and respond to potential threats.
  • API Access: Imperva’s WAF has API access, allowing you to automate and integrate security workflows with your application.
  • SSL/TLS Encryption: Imperva Cloud WAF offers SSL/TLS encryption for secure client and server communication.

The price for the pro version is $59 per month

Free plan available

Imperva Cloud WAF provides robust safety components that can aid in protecting your web applications from cyber hazards. Its advanced bot protection, DDoS protection, and automatic learning capabilities make it a reliable option for organizations looking to secure their web applications.

Also Read: Why do Cyber-Attacks Happen? – How to Prevent Them

3. Barracuda Web Application Firewall

Barracuda Web Application Firewall (WAF) is a comprehensive safety resolution that protects against various web-based threats. Its advanced security features help ensure that web applications remain safe and available to legitimate users.

Here are some of the critical parts of the Barracuda Web Application Firewall:

  • Advanced Threat Protection: Barracuda WAF uses advanced threat protection mechanisms to defend against SQL injection, cross-site scripting, and additional internet threats.
  • Automated Updates: Barracuda WAF receives computerized updates to keep up with the latest security threats and ensure that your application remains protected.
  • SSL/TLS Encryption: Barracuda WAF offers SSL/TLS encryption for secure transmission between customers and the server.
  • Load Balancing: Barracuda WAF provides load balancing capabilities that help distribute traffic evenly across web servers, resulting in faster load times.
  • DDoS Protection: Barracuda WAF provides advanced DDoS protection to help prevent your website from going offline during an attack.
  • Custom Rules: Barracuda WAF allows you to create custom rules to stop particular kinds of traffic and safeguard your application from unique threats.
  • Centralized Management: Barracuda WAF offers centralized management that allows you to manage multiple web applications from a single dashboard.
  • Analytics and Reporting: Barracuda WAF provides analytics and reporting that helps you monitor the security of your application and respond to potential threats.
  • API Access: Barracuda WAF has API access, allowing you to automate and integrate security workflows with your application.

Prices start at $304 per annum.

Barracuda Web Application Firewall delivers a complete set of safety elements to safeguard web applications from various cyber hazards. Its advanced threat protection, automated updates, and DDoS protection capabilities make it a reliable option for organizations looking to secure their web applications.

4. CloudFlare WAF

CloudFlare WAF (Web Application Firewall) is a cloud-based security solution that uses CloudFlare’s global network and machine learning to detect and block malicious traffic, ensuring your web application is secure and available to legitimate users. Here are some of the imperative characteristics of CloudFlare WAF:

  • Application Layer Protection: CloudFlare WAF provides advanced coating security that detects and blocks hostile traffic before it reaches your web apps.
  • Machine Learning: CloudFlare WAF uses machine learning to adapt to changing threat patterns and provide advanced protection against emerging threats.
  • DDoS Protection: CloudFlare WAF provides advanced DDoS protection to help prevent your web application from going offline during an attack.
  • Real-time Analytics and Reporting: CloudFlare WAF provides real-time analytics and reporting that helps you monitor the security of your web application and respond to potential threats.
  • Custom Rules: CloudFlare WAF allows you to create custom rules to preclude precise types of traffic and protect your web application from unique threats.
  • CDN Integration: CloudFlare WAF integrates with CloudFlare’s global CDN to provide fast and reliable content delivery to your web application.
  • Observance: CloudFlare WAF helps you achieve compliance with industry criteria such as PCI DSS, HIPAA, and GDPR.
  • SSL/TLS Encryption: CloudFlare WAF offers SSL/TLS encryption for secure client and server communication.
  • Mobile Optimization: CloudFlare WAF provides mobile optimization features to improve the performance of your web application on mobile devices.

Complimentary program available

Premium plans start at $5 per month

CloudFlare WAF provides a total set of security elements that can help save web apps from miscellaneous cyber threats. Its global network, machine learning capabilities, and CDN integration make it a reliable option for organizations looking to secure their web applications and improve their performance.

5. Sucuri Website Firewall

Sucuri Website Firewall is a cloud-based web application firewall that provides robust security features to protect websites from cyber threats. Its advanced security capabilities help ensure websites remain safe and available to legitimate users.

Here are a few of the crucial elements of the Sucuri Website Firewall:

  • Malware Removal: Sucuri’s WAF includes malware removal and cleanup services to ensure your website is free from malicious content.
  • DDoS Protection: Sucuri WAF provides advanced DDoS protection to help prevent your website from going offline during an attack.
  • Custom Rules: Sucuri WAF lets you make custom rules to bar particular kinds of traffic and safeguard your website from unique threats.
  • Global Anycast Network: Sucuri WAF uses a global anycast network to distribute traffic to the nearest data center, resulting in faster load times.
  • SSL/TLS Encryption: Sucuri WAF offers SSL/TLS encryption for secure client and server communication.
  • Virtual Patching: Sucuri WAF uses virtual patching to protect your website from vulnerabilities that have not yet been patched.
  • Real-time Analytics and Reporting: Sucuri WAF provides real-time analytics and reporting that helps you monitor the security of your website and respond to potential threats.
  • CDN Integration: Sucuri WAF can integrate with a CDN to cache static content and distribute it globally, resulting in faster load times.
  • Compliance: Sucuri WAF helps you achieve compliance with industry norms such as PCI DSS, HIPAA, and GDPR.

Prices start at $9.99 per month.

Sucuri Website Firewall offers comprehensive security features that can help protect websites from cyber threats. Its advanced malware removal, DDoS protection, and virtual patching capabilities make it a reliable option for organizations looking to secure their websites.

6. Citrix WAF

Citrix WAF (Web Application Firewall) is a cloud-based safety resolution that provides robust features to safeguard web applications from cyber hazards. It uses machine learning and advanced security capabilities to keep web applications safe and available to legitimate users.

Here are few of the imperative features of Citrix WAF:

  • Application Layer Protection: Citrix WAF provides advanced layer protection that detects and blocks malicious traffic before reaching your web application.
  • Machine Learning: Citrix WAF uses machine learning to adapt to changing threat patterns and provide advanced protection against sophisticated attacks.
  • Bot Management: Citrix WAF uses advanced bot management techniques to identify and block bots, ensuring that only legitimate traffic reaches your web application.
  • Real-time Analytics and Reporting: Citrix WAF provides real-time analytics and reporting that helps you monitor the security of your web application and respond to potential threats.
  • DDoS Protection: Citrix WAF provides advanced DDoS protection to help prevent your web application from going offline during an attack.
  • Custom Rules: Citrix WAF allows you to create custom rules to block specific types of traffic and protect your web application from unique threats.
  • Compliance: Citrix WAF helps you achieve compliance with industry standards such as PCI DSS, HIPAA, and GDPR.
  • SSL/TLS Encryption: Citrix WAF offers SSL/TLS encryption for secure client and server communication.
  • Content Inspection: Citrix WAF provides content inspection capabilities to detect and block malicious content before it reaches your web application.

Quote based pricing

Free demo available

Citrix WAF provides a comprehensive set of protection components that can help protect web applications from various cyber threats. Its advanced machine comprehension, bot management, and DDoS protection capabilities make it a reliable option for associations looking to secure their web apps.

7. Oracle Dyn WAF

Oracle Dyn WAF (Web Application Firewall) is a cloud-based safeness resolution that provides advanced features to safeguard web applications from cyber threats. It uses machine knowledge and behavioral examination to catch and thwart malicious traffic, ensuring that only legitimate traffic reaches your web application.

Here are some of the fundamental elements of Oracle Dyn WAF:

  • Application Layer Protection: Oracle Dyn WAF provides advanced layer protection that detects and blocks malicious traffic before reaching your web application.
  • Behavioral Analysis: Oracle Dyn WAF uses behavioral analysis to identify and block attacks exhibiting abnormal behavior, ensuring your web application is protected from sophisticated attacks.
  • Machine Learning: Oracle Dyn WAF uses machine learning to adapt to changing threat patterns and provide advanced protection against emerging threats.
  • Real-time Analytics and Reporting: Oracle Dyn WAF provides real-time analytics and reporting that helps you monitor the security of your web application and respond to potential threats.
  • Custom Rules: Oracle Dyn WAF allows you to create custom rules to intercept typical types of gridlock and protect your web application from unique threats.
  • DDoS Protection: Oracle Dyn WAF provides advanced DDoS protection to help prevent your web application from going offline during an attack.
  • Allegiance: Oracle Dyn WAF helps you achieve compliance with industry measures such as PCI DSS, HIPAA, and GDPR.
  • SSL/TLS Encryption: Oracle Dyn WAF offers SSL/TLS encryption for secure client and server communication.
  • Bot Management: Oracle Dyn WAF uses advanced bot management techniques to identify and block bots, ensuring that only legitimate traffic reaches your web application.

Quote based pricing

Oracle Dyn WAF provides a wide set of protection components that can assist protect web applications from various cyber threats. Its advanced behavioral examination, device education, and bot managing capacities make it a dependable option for institutions looking to ensure their web applications.

8. F5 Distributed Cloud WAF

F5 Distributed Cloud WAF (Web Application Firewall) is a cloud-based protection resolution that provides advanced features to fend web applications from cyber hazards. It uses advanced security capabilities and machine learning to detect and block malicious traffic, ensuring your web application is safe and available to legitimate users.

Here are some of the critical features of F5 Distributed Cloud WAF:

  • Application Layer Protection: F5 Distributed Cloud WAF provides advanced layer protection that detects and blocks malicious traffic before it reaches your web application.
  • Machine Learning: F5 Distributed Cloud WAF uses machine learning to adapt to changing threat patterns and provide advanced protection against emerging threats.
  • Advanced Bot Protection: F5 Distributed Cloud WAF uses advanced bot protection techniques to identify and block bots, ensuring that only legitimate traffic reaches your web application.
  • DDoS Protection: F5 Distributed Cloud WAF provides advanced DDoS protection to help prevent your web application from going offline during an attack.
  • Real-time Analytics and Reporting: F5 Distributed Cloud WAF provides real-time analytics and reporting that helps you monitor the security of your web application and respond to potential threats.
  • API Security: F5 Distributed Cloud WAF provides state-of-the-art API protection characteristics to protect your web application’s APIs from cyber threats.
  • Compliance: F5 Distributed Cloud WAF helps you achieve compliance with industry standards such as PCI DSS, HIPAA, and GDPR.
  • SSL/TLS Encryption: F5 Distributed Cloud WAF offers SSL/TLS encryption for secure client and server communication.
  • Custom Rules: F5 Distributed Cloud WAF allows you to create custom rules to block specific types of traffic and protect your web application from unique threats.

Price starts at $25 a month

F5 Distributed Cloud WAF provides a complete set of shield attributes that can help protect web applications from various cyber threats.

9. AWS WAF

AWS WAF (Web Application Firewall) is a cloud-based security solution which uses AWS infrastructure and machine learning to detect and block malicious traffic, ensuring your web application is secure and available to legitimate users.

Here are few of the fundamental traits of AWS WAF:

  • Application Layer Protection: AWS WAF provides advanced layer protection that catches and blocks antagonistic traffic before it reaches your web apps.
  • Machine Learning: AWS WAF uses machine learning to detect and block sophisticated attacks such as SQL injection, cross-site scripting, etc.
  • DDoS Protection: AWS WAF provides advanced DDoS protection to help prevent your web application from going offline during an attack.
  • Real-time Analytics and Reporting: AWS WAF provides real-time analytics and reporting that helps you monitor the security of your web application and respond to potential threats.
  • Custom Rules: AWS WAF allows you to produce trade conventions to secure distinct types of traffic and protect your web application from unique threats.
  • Integration with AWS Services: AWS WAF integrates with other AWS services such as AWS CloudFront, AWS Application Load Balancer, and AWS Shield Advanced to provide a comprehensive security solution.
  • Subordination: AWS WAF helps you perpetrate compliance with industry criteria such as PCI DSS, HIPAA, and GDPR.
  • SSL/TLS Encryption: AWS WAF offers SSL/TLS encryption for secure client and server communication.

Price starts at $1 per month

AWS WAF provides a comprehensive set of guard attributes that can aid protect web applications from various cyber threats. Its integration with other AWS services and machine learning capabilities make it a reliable option for organizations looking to secure their web applications on the cloud.

10. Prophaze WAF

Prophaze WAF is a cloud-based web application firewall that offers comprehensive security features to protect web applications from cyber threats. Its advanced security capabilities help ensure that web applications remain safe and available to legitimate users.

Here are a few of the essential features of Prophaze WAF:

  • Automatic Learning: Prophaze WAF can automatically learn the behavior of your application and create custom rules to block malicious traffic.
  • Bot Management: Prophaze WAF uses advanced bot management techniques to identify and block bots, ensuring that only legitimate traffic reaches your website.
  • DDoS Protection: Prophaze WAF provides advanced DDoS protection to help prevent your website from going offline during an attack.
  • Real-time Analytics and Reporting: Prophaze WAF provides real-time analytics and reporting that helps you monitor the security of your application and respond to potential threats.
  • Custom Rules: Prophaze WAF allows you to create custom rules to block specific types of traffic and protect your application from unique threats.
  • API Access: Prophaze WAF has API access, allowing you to automate and integrate security workflows with your application.
  • Content Delivery Network (CDN): Prophaze WAF offers a CDN that can cache static content and distribute it globally, resulting in faster load times for your website.
  • SSL/TLS Encryption: Prophaze WAF offers SSL/TLS encryption for secure client and server communication.
  • Compliance: Prophaze WAF helps you achieve compliance with industry norms such as PCI DSS, HIPAA, and GDPR.

Prices start at $299 per month.

Prophaze WAF delivers a broad set of safety components that can aid in protecting your web applications from cyber hazards. Its advanced bot management, DDoS protection, and automatic learning capabilities make it a reliable option for organizations looking to secure their web applications.

In conclusion, as web application security threats continue to evolve, organizations must implement a robust firewall to protect their web applications from various cyber threats. The web application firewalls discussed above provide advanced features such as application layer protection, DDoS protection, machine learning, real-time analytics and reporting, custom rules, compliance, and SSL/TLS encryption to secure web applications.

Choosing the best web application firewall for 2025 depends on the organization’s security needs, budget, and infrastructure. By selecting the appropriate web application firewall and implementing it effectively, organizations can minimize the risk of cyber-attacks and protect their web applications in 2025 and beyond.

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