22 Best Web Application Firewall Software in 2024
Best Web Application Firewall Software Shortlist
I’ve assessed the best web application firewall software and added these to my top shortlist, with quick summaries to help you understand what each does best:
Our one-on-one guidance will help you find the perfect fit.
In the ever-evolving landscape of cybersecurity, dealing with challenges like false positives, zero-day threats, and application-layer attacks is common. Web Application Firewall Software (WAF) is a critical tool for both on-premise and cloud-based security, offering robust protection for web apps and API security. WAF protects against data breaches and hackers by controlling IP addresses, profiling user behavior, applying rulesets, and employing virtual patching. It's more than just a security measure; it's an advanced system offering application protection and customization to combat malicious traffic, file inclusion, and threats to virtual machines.
The best WAF not only offers vital deployment options but also minimizes downtime, ensuring uninterrupted service. It helps in solving major pain points such as vulnerabilities and unauthorized access, providing advanced WAF features and API protection. Auditing, virtual patching, and robust responsiveness to emerging threats are key aspects of WAF that contribute to a secure digital environment. Whether you're new to cybersecurity or looking to enhance your existing measures, understanding the multifaceted role of WAF will guide you in making an informed decision to safeguard your online presence.
What Is Web Application Firewall Software?
Web Application Firewall Software is a specialized barrier designed to secure web applications by monitoring and filtering HTTP traffic between a web application and the Internet. It serves as a shield against common web-based threats such as cross-site scripting (XSS), SQL injection, and other OWASP (Open Web Application Security Project) threats.
Typically used by businesses, e-commerce sites, and any organization with an online presence, Web Application Firewall Software inspects incoming traffic and uses established rules to identify and block anything malicious. By doing so, it helps maintain the integrity and confidentiality of the data, ensuring that the web applications run smoothly and securely.
Best Web Application Firewall Software Summary
| Tools | Price | |
|---|---|---|
| Aikido Security | From $314/month (billed annually, up to 10 users) | Website |
| Fastly | From $50/user/month | Website |
| AWS WAF | From $5/user/month + $1 per million web requests | Website |
| Signal Sciences WAF | From $10/user/month (billed annually) + $49 base fee per month | Website |
| Imperva WAF | From $30/user/month (billed annually) | Website |
| Reblaze WAF | From $15/user/month (billed annually) | Website |
| Sucuri WAF | From $9.99/user/month (billed annually) | Website |
| Microsoft Azure Web Application Firewall (WAF) | From $10/user/month (billed annually) | Website |
| Fortinet FortiWeb | From $20/user/month (min 5 seats) | Website |
| Symantec Web Application Firewall and Reverse Proxy | Pricing upon request | Website |
Compare Software Specs Side by Side
Use our comparison chart to review and evaluate software specs side-by-side.
Compare SoftwareBest Web Application Firewall Software Review
Aikido Security is a DevSecOps platform that provides comprehensive security coverage from code to cloud. It offers a variety of security scans and features to protect applications at runtime, including vulnerability management, Software Bill of Materials (SBOM) generation, and protection against threats like malware, outdated software, and license risks.
Why I Picked Aikido Security: Aikido Security stands out as web application firewall software with its robust feature set tailored for modern web applications, particularly those built on Node.js. It offers the ability to autonomously protect applications against common and critical attacks such as SQL injection, NoSQL injection, command injection, and path traversal. This is achieved through an embedded JavaScript library that operates directly within the application, ensuring high accuracy and minimal false positives or negatives.
Standout Features & Integrations:
Features include cloud posture management, which detects cloud infrastructure risks. The platform also excels in open source dependency scanning, continuously monitoring code for known vulnerabilities and generating SBOMs for better dependency management. Integrations include Amazon Web Services (AWS), Google Cloud, Microsoft Azure Cloud, Drata, Vanta, AWS Elastic Container Registry, Docker Hub, Jira, Asana, and GitHub.
Pros and cons
Pros:
- User-friendly interface
- Helps in compliance tracking and reporting
- Provides actionable insights and recommendations
Cons:
- Setup may be complex for some users
- Can be expensive for some users
Fastly is a real-time caching content delivery network (CDN) designed to provide high-speed performance and caching solutions for web applications. It uses globally distributed networks and edge computing to ensure low-latency responses, making it best for high-speed performance and caching.
Why I Picked Fastly: I chose Fastly after carefully comparing various CDN solutions, selecting it for its distinctive high-speed delivery and caching abilities. What makes it stand out is its robust infrastructure that leverages strategically positioned servers to minimize latency. I determined it's best for high-speed performance and caching due to its real-time cache controls and unique instant purging feature.
Standout Features & Integrations:
Fastly's standout features include instant purging, real-time analytics, and flexible edge scripting that enable custom logic at the network's edge. These functionalities are not only useful but are core to its high-speed performance. The integrations with popular web platforms, such as WordPress and Drupal, allow for streamlined content delivery and caching management.
Pros and cons
Pros:
- Integrates easily with many web platforms
- Optimized for low-latency performance
- Provides real-time caching controls
Cons:
- Base fee might be a barrier for entry-level users
- Custom scripting might require a learning curve
- Starting price may be higher for some small businesses
AWS WAF (Web Application Firewall) is a security service designed to protect web applications hosted on the Amazon Web Services (AWS) platform from common online threats. By integrating tightly with AWS services, it provides specific protections tailored to the unique infrastructure and service offerings within AWS. This strong integration with the AWS ecosystem makes it the best option for those relying on Amazon's cloud services.
Why I Picked AWS WAF: I chose AWS WAF for this list after carefully comparing its features and integrations specifically for the AWS platform. It's evident that its design is strongly focused on serving applications hosted within AWS, which makes it stand out from other web application firewalls. I judged it to be best for Amazon Web Services integration due to its dedicated alignment with AWS's unique architecture and service offerings.
Standout Features & Integrations:
AWS WAF's most important features include real-time visibility into attacks, customizable web security rules, and bot control. The tool is capable of responding quickly to changing threat landscapes. As for integrations, it links easily with other AWS services such as AWS CloudTrail, Amazon CloudWatch, and AWS Lambda, enabling streamlined security management within the AWS environment.
Pros and cons
Pros:
- Customizable security rules provide flexibility for various use cases
- Real-time visibility into attacks, allowing for quick response
- Designed specifically for AWS, providing tailored protection for applications hosted there
Cons:
- Complexity in configuration may require specialized expertise
- Additional cost per web request can become significant with high traffic
- May not be suitable for non-AWS environments
Signal Sciences WAF specializes in providing robust security measures that include monitoring real-time data to web applications. This ability to monitor live traffic makes it stand out in the landscape of web application firewalls, justifying its recognition as the best for real-time data monitoring.
Why I Picked Signal Sciences WAF: I chose Signal Sciences WAF after closely comparing its features and integrations. Its strength lies in real-time data monitoring, enabling quicker response to threats. The decision to select this tool was further solidified by its reputation for timely detection, making it best for applications where instant monitoring is paramount.
Standout Features & Integrations:
Signal Sciences WAF offers intelligent attack detection, which adapts to evolving threats and learns from them. It has a powerful analytics dashboard, providing a clear view of traffic and potential risks. Integrations with platforms such as Slack, PagerDuty, and JIRA facilitate immediate alerts and rapid response to any suspicious activity.
Pros and cons
Pros:
- Wide range of integration options
- Adaptive learning to new threats
- Intelligent real-time monitoring
Cons:
- May require technical expertise for customization
- Base fee in addition to user charge
- Annual billing may deter some users
Imperva WAF is a cloud-based web application firewall designed to protect websites and applications from security breaches while also aiding in meeting regulatory compliance requirements. Its strong focus on ensuring compliance with various standards like GDPR, HIPAA, and PCI DSS makes Imperva WAF the best for compliance management.
Why I Picked Imperva WAF: I chose Imperva WAF for this list after carefully judging its unique approach to compliance management. Among the numerous tools I compared, Imperva stood out due to its commitment to not only providing robust security but also simplifying compliance reporting and adherence to legal regulations. I determined that it's the best for compliance management, given its vast library of predefined compliance templates and guided setup.
Standout Features & Integrations:
Imperva WAF offers features like data masking, threat analytics, and automated compliance reporting that are essential for modern regulatory needs. Integrations with leading SIEM systems, DLP solutions, and authentication providers further enhance its capabilities in managing and maintaining compliance across different platforms.
Pros and cons
Pros:
- Comprehensive reporting capabilities for various standards
- Integrates well with existing compliance and security tools
- Specialized focus on compliance management
Cons:
- Some users might find the interface complex or overwhelming
- Cost could be prohibitive for smaller organizations
- Might be too focused on compliance for some users' needs
Reblaze WAF is a web application firewall designed to secure websites, applications, and services against online threats. It emphasizes comprehensive bot mitigation, employing various technologies to detect and handle automated attacks. This focus on robust bot mitigation positions Reblaze WAF as the best for that specific area of online security.
Why I Picked Reblaze WAF: I picked Reblaze WAF for this list due to its impressive set of features that provide a well-rounded solution for bot mitigation. What sets Reblaze apart from other tools is its ability to adapt to new and evolving bot patterns, offering continuous protection. I determined that this focus on adaptable, comprehensive bot mitigation makes Reblaze the best choice for organizations in need of specialized protection against automated threats.
Standout Features & Integrations:
Reblaze WAF's standout features include real-time bot identification, granular traffic control, and the ability to create custom security rules. Its integrations with cloud platforms such as AWS and Azure, along with compatibility with various CDN providers, enable organizations to build a unified defense strategy across their web infrastructure.
Pros and cons
Pros:
- Strong integration with popular cloud and CDN services
- Customizable security rules
- Comprehensive bot mitigation capabilities
Cons:
- Pricing may not be suitable for smaller businesses or individual users
- Customization may require technical knowledge
- Might be over-specialized for organizations needing broader security features
Sucuri WAF excels in providing security against malware, with a specific focus on efficient removal and cleanup. This tool brings together robust detection methods and precise remediation to make it the best for malware removal and cleanup, a crucial aspect of maintaining web application integrity.
Why I Picked Sucuri WAF: I chose Sucuri WAF after assessing its capacity to identify, remove, and clean malware effectively. In my judgment, its distinct emphasis on malware handling sets it apart from the rest. The ability to not just detect but also swiftly clean malware makes it best for those facing consistent malware threats or looking for thorough post-attack cleanup.
Standout Features & Integrations:
Sucuri WAF’s malware removal tool is paired with constant monitoring to detect and clean malware as quickly as possible. It integrates threat intelligence to refine detection methods continually. Important integrations include compatibility with popular content management systems (CMS) like WordPress and Joomla, making it easily implementable in various web environments.
Pros and cons
Pros:
- Continuous monitoring for swift action
- Integration with popular CMS
- Comprehensive malware detection and cleanup
Cons:
- Specificity on malware may overlook other threat vectors
- May not suit businesses focused solely on preventive measures
- Annual billing only
Microsoft Azure Web Application Firewall (WAF) is designed to protect web applications from various online threats such as SQL injection, cross-site scripting, and other web vulnerabilities. Tailored specifically for Azure native applications, it ensures optimized protection and easy integration within the Azure environment. This specificity in design makes it the best choice for those running applications natively within Azure.
Why I Picked Microsoft Azure Web Application Firewall (WAF): I chose Microsoft Azure WAF because of its robust security features and native integration with the Azure platform. By comparing its capabilities with other tools, I determined that its strength lies in the integration with Azure, providing a tailored security solution. It stands out for its ability to protect applications within the Azure ecosystem, and I believe it's best for Azure native applications because of its specific focus on those deployments.
Standout Features & Integrations:
Microsoft Azure WAF offers comprehensive protection against common web vulnerabilities. Features such as custom rules, bot protection, and geo-filtering enable a wide range of security options. The most important integrations it provides include connection with other Azure services, such as Azure Active Directory and Azure Monitor, ensuring an integrated and efficient workflow within the Azure environment.
Pros and cons
Pros:
- Integrates effortlessly with other Azure services
- Offers custom rules for specialized protection needs
- Designed specifically for Azure, ensuring optimized protection for native applications
Cons:
- May be considered expensive for smaller applications or businesses
- Custom configurations might require specialized knowledge
- Limited appeal to those not using the Azure platform
Fortinet FortiWeb is renowned for providing top-tier protection against sophisticated web threats. This advanced layer of security aligns perfectly with its positioning as the best tool for advanced threat protection, especially for organizations requiring intense security measures.
Why I Picked Fortinet FortiWeb: I chose Fortinet FortiWeb for its commitment to tackling complex and evolving threats. After careful comparison and judging its performance against other options, it's clear that Fortinet stands apart in offering advanced threat protection. The decision to label it as the best for this specific use case was backed by its well-designed architecture aimed at protecting against the most advanced and targeted attacks.
Standout Features & Integrations:
Fortinet FortiWeb offers behavior-based threat detection, providing an intelligent response to attacks. It also includes proactive bot defense and inbuilt fraud detection. Key integrations include compatibility with SIEM systems and connectors to various third-party reporting tools, enhancing its utility and collaborative security measures.
Pros and cons
Pros:
- Useful integration with third-party tools
- Strong bot defense mechanism
- Behavior-based threat analysis
Cons:
- Higher starting price point
- Potential complexity in setup
- Minimum seat requirement
Best for content inspection and protection
Symantec Web Application Firewall and Reverse Proxy is a security solution that safeguards web applications through in-depth content inspection. It offers protection against web vulnerabilities and ensures the integrity and confidentiality of the content, making it the best choice for content inspection and protection, where accuracy and thoroughness are key.
Why I Picked Symantec Web Application Firewall and Reverse Proxy: I chose Symantec Web Application Firewall and Reverse Proxy after carefully comparing its capabilities in content scrutiny. What sets this tool apart is its dual functionality as a firewall and reverse proxy, which enhances content safety. Its proficiency in scanning content for threats, paired with protection measures, aligns with its USP, making it best for content inspection and protection.
Standout Features & Integrations:
This tool has a powerful content inspection engine that identifies and neutralizes threats in real time. The reverse proxy functionality ensures an additional layer of protection. Important integrations include compatibility with various web servers and applications alongside APIs that allow for custom connections, enhancing its adaptability across different environments.
Pros and cons
Pros:
- Broad integration capabilities with web servers and applications
- Dual functionality with firewall and reverse proxy
- In-depth content inspection for accurate threat detection
Cons:
- Specific focus on content inspection might not cater to all security needs
- May have a steeper learning curve for new users
- Pricing information is not transparent
Other Noteworthy Web Application Firewall Software
Below is a list of additional web application firewall software I shortlisted but did not make it to the top list. Definitely worth checking them out.
- Wallarm
Best for AI-driven security automation
- Akamai Kona Site Defender
Best for scalable DDoS defense
- Cloudflare WAF
Best for integrated content delivery network
- Prophaze WAF
Good for Kubernetes environments and container security
- F5 Distributed Cloud WAF
Good for multi-cloud security and traffic management
- Barracuda Web Application Firewall
Good for scalable security in hybrid environments
- Penta Security WAPPLES
Good for heuristic-based web attack detection
- AppTrana Cloud WAAP (WAF)
Good for managed security and continuous risk assessment
- Microsoft Application Gateway
Good for Azure integration and application delivery control
- HAProxy
Good for load balancing and performance optimization
- Radware
Good for real-time threat protection and DDoS mitigation
- Sophos XG Firewall with Web Application Firewall
Good for unified threat management and synchronized security
Selection Criteria for Choosing Web Application Firewall Software
Choosing the right Web Application Firewall (WAF) is crucial for maintaining the security and integrity of web applications. Having evaluated dozens of WAF tools, I was really looking for core functionality, key features, and usability specific to the diverse needs of various business and technical environments. Here's what I considered most important:
Core Functionality
- Protection Against Common Threats: Ability to defend against common web vulnerabilities like SQL injection, Cross-Site Scripting (XSS), and Cross-Site Request Forgery (CSRF).
- Monitoring and Reporting: Real-time monitoring and in-depth analysis of web traffic, with detailed logging and reporting capabilities.
- DDoS Mitigation: Capabilities to detect and mitigate distributed denial-of-service attacks.
- Compliance Management: Support for industry standards and regulations such as PCI DSS, HIPAA, etc.
Key Features
- Customizable Security Rules: Allows users to define specific security policies and rules tailored to their applications.
- Integration with Existing Infrastructure: The ability to easily integrate the WAF with existing security tools, cloud environments, or data centers.
- Scalability and Performance: A tool that can handle traffic spikes and grow with the business, without compromising performance.
- AI and Machine Learning: Utilizing AI to adapt to emerging threats and to provide predictive security measures.
Usability
- Intuitive Interface: For this type of software, it is important to have a clear and intuitive dashboard that provides at-a-glance insights into security status, alerts, and configurations.
- Easy Configuration and Deployment: A WAF should allow for quick setup and be compatible with various web platforms and hosting environments.
- Accessible Customer Support and Training: Given the complexity of security management, having accessible customer support and comprehensive training materials is essential. This can include step-by-step guides, video tutorials, or community forums to assist in onboarding users.
- Role-Based Access Control: For organizations with diverse teams, a WAF should enable role-based access that's easy to configure so that different team members can have different levels of control and visibility.
Most Common Questions Regarding Web Application Firewall Software (FAQs)
What are the benefits of using Web Application Firewall (WAF) software?
The benefits of using WAF software include:
- Enhanced Security: Protects web applications from various common threats and vulnerabilities.
- Compliance Management: Helps in meeting industry compliance standards like PCI DSS, HIPAA, etc.
- Real-Time Monitoring: Provides real-time monitoring of web traffic and instant alerts on suspicious activities.
- Customizability: Allows for tailored security policies to match specific needs and environments.
- Integration and Scalability: Can easily integrate with existing infrastructure and scale as the business grows.
How much do these WAF tools typically cost?
WAF tools vary widely in pricing, depending on features, scalability, and specific requirements. Pricing can range from as low as $10/user/month for basic packages to $1000/user/month or more for enterprise-grade solutions.
What are the common pricing models for WAF tools?
The common pricing models for WAF tools include subscription-based pricing (usually monthly or annually), per-user pricing, and sometimes pay-as-you-go models based on the number of web requests processed.
What is the typical range of pricing for WAF tools?
The typical range of pricing for WAF tools can be from $10/user/month for smaller solutions to several hundred dollars per user per month for comprehensive, enterprise-level solutions.
Which are the cheapest and most expensive WAF software?
The cheapest WAF software often starts at around $10/user/month for basic protection, while the most expensive options can exceed $1000/user/month for advanced features and dedicated support.
Are there any free WAF tool options available?
Some vendors offer free versions of their WAF tools with limited features. These can be good options for small businesses or personal projects, but they often lack the robust protection and support offered by paid versions.
Is it necessary for every business to have a WAF?
While not every business may require a WAF, any organization with a web presence should consider its security needs. A WAF adds an essential layer of protection, especially for businesses that handle sensitive data or conduct transactions online.
How do I choose the right WAF tool for my needs?
Choosing the right WAF tool requires considering factors like core functionality, key features, usability, pricing, and support. Understanding the specific needs of your web applications, alignment with industry regulations, and integration with existing systems will guide your decision in selecting the most suitable WAF tool.
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Summary
Choosing the right Web Application Firewall (WAF) software is a vital decision that requires careful consideration of various factors. From understanding the importance of protecting web applications to evaluating different pricing models, it's crucial to align the selection with the specific needs and budget constraints of your organization.
Key Takeaways:
- Identify Core Needs: Assessing the unique requirements of your web applications, such as compliance needs, scalability, and specific security threats, will lead to a more informed choice. Tailoring the WAF to your specific environment enhances protection.
- Understand Pricing and Features: WAF tools vary widely in pricing and features. Knowing the typical range, pricing models, and key features that are critical for your use case ensures a cost-effective decision without compromising essential functionalities.
- Consider Usability and Integration: A WAF tool that integrates easily with existing infrastructure and provides an intuitive interface ensures smooth implementation and maximizes efficiency. Evaluate aspects like onboarding, customer support, and the overall user experience to make a choice that fits easily into your workflow.
What do you think?
I hope this guide has provided valuable insights to help you choose the best Web Application Firewall Software for your specific needs and use case. Understanding your core requirements, evaluating features, and considering usability are key factors in making the right decision.
Do you have any favorite tools or insights that weren't covered here? Feel free to share your suggestions or experiences with other tools I may have missed. Your input could be instrumental in helping others make an informed choice.