Best Web Application Firewalls (WAF) Vendors – Top 10

People who visit your website know that you will keep their data safe. The number of cybersecurity risks, on the other hand, is growing, making it harder to stop website hacks and data breaches.

Wrong users have always been a threat to websites, but the rise of hacks powered by AI is making security even more complicated than it was before.

The Australian graphic design website Canva was recently attacked in this way, and in May 2019, there was a massive data breach. One hundred thirty-seven million users’ hashed bcrypt passwords, usernames, email addresses, names, and places where they lived were made public by the cyberattack.

On the other hand, websites that accept credit cards for payments must follow PCI data security guidelines, even if they use outside payment processors. A web application firewall (WAF) is needed to protect data and keep it safe on the internet, which is becoming more hostile and has stricter rules.

What is WAF?

Website Application Firewalls are software that intercepts and watches website data while blocking hackers and other wrong users. Web apps and sites can easily be hacked with DDoS attacks, SQL injections, and other types of attacks if they don’t have cloud-based WAF and CDN options.

Best Application Firewalls

#1) AppTrana

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best for Small to large enterprises.


  • Basic | Free
  • Advanced |14-day free trial | $99 per month
  • Premium| $399 per month

AppTrana is a fully managed cloud-based Website Security solution from Indusface. The solution includes features like a Web Application Firewall, managed custom rules, virtual patching and CDN for website acceleration.


  • Uncover Vulnerabilities Non-Stop.
  • Manual Pen-Testing
  • Patch Vulnerabilities Immediately.
  • Checks for False Positives
  • DDoS Protection

Verdict: AppTrana combines WAF with risk detection, risk monitoring, risk protection, and website acceleration to ensure the security and integrity of web applications.

Website: AppTrana

#2) Prophaze WAF

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Prophaze WAF is an all-in-one web security platform. It’s more than a web application firewall solution. It combines WAF + RASP + CDN + DDOS + Bot Mitigation + API Security Solution.

Prophaze uses its ML Profiling Capability to do Behavioral learning of users on the web application, which is being secured. Hence, Prophaze is more of an application-ware firewall.

Prophaze Kubernetes WAF version is built natively for Microservices-based Architecture. It can secure workloads or docker containers deployed inside a Kubernetes Cluster against OWASP Top 10 Attacks and Layer 7 DDoS attacks.

Prophaze WAF is deployed as an Ingress controller inside a cluster, which will dynamically secure all the traffic.

Prophaze offers unlimited rule sets and custom integrations with SIEM Solutions. Supports all public clouds like AWS, Azure, GCP, etc. Prophaze WAF can be installed in the same zone where the customer cloud resides. Prophaze gives 24×7 Support via Zoom / Teams / Google Meet along with email /phone and chat support.

Website: Prophaze

#3) Cloudflare WAF

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Personal users and small to large-sized businesses.


  • Free | $0 per month | Add-ons Billed Monthly
  • Pro | $20 per month | Billed Monthly
  • Business | $200 per month | Billed Monthly
  • Enterprise | Ask for Quote | Billed Annually

Cloudflare web app firewall service that combines a reverse proxy with a content delivery network while giving a range of bonus security and optimization features. The software will block various cyber threats, such as SQL injections and DDoS attacks.

It will block security threats based on blocklists, website reputation, HTTP headers, and many other parameters.


  • Logging and Reporting
  • Issue Tracking
  • Security Monitoring
  • Reporting and Analytics
  • Application-Layer Controls

Verdict: Cloudflare is a powerful firewall with excellent security features, effective website optimizations, a fast global network, and an intuitive application design.

Website: Cloudflare

#4) Sucuri Website Firewall

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Personal users to small & mid-sized businesses.


  • Basic | $9.99per month
  • Pro | $19.98per month
  • Business | $499.99 per year

Sucuri is a cloud-based solution specialized for detecting and mitigating zero-day exploits, DDoS attacks, and all OWASP top 10 attacks. At the same time, it protects website login pages from brute-force attacks.


  • Layer 7 DDoS Mitigation
  • Block Known Attacks
  • Block Zero-Day Attacks
  • Smart Caching Options
  • Free SSL on Firewall Server

Verdict: Sucuri WAF is a website security solution capable of protecting websites from various cyberattacks, but it also offers several other exciting features, such as rules for virtual patching and hardening, innovative caching options, and resource optimization.

Website: Sucuri


Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Scalable use for businesses of all sizes as long as they are AWS clients.


  • Web ACL | $5.00 per month (prorated hourly)
  • Rule | $1.00 per month (prorated hourly)
  • Request | $0.60 per 1 million requests

The Amazon AWS web application firewall is a robust website security solution. However, AWS WAF is only available to customers who use the company’s Web Services.

The solution is just an add-on to a subscription to cloud services such as the Amazon content delivery network and Application Load Balancer.


  • Agile protection against web attacks
  • Improved web traffic visibility
  • Ease of deployment and maintenance
  • Cost-effective web application protection
  • Security is integrated with how you develop applications.

Verdict: AWS Amazon Web App Firewall is a highly robust and scalable solution facilitated with countless helpful security features that ensure that your website remains safe against different types of cyberattacks.

Website: AWS

#6) Akamai

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Mid to large-sized businesses.

Price: Free trial

Akamai Kona Web Application Firewall is a reliable solution against all known web attacks. It continues to inspect HTTP and HTTPs requests using the Akamai Intelligent Platform.

The robust virus detection solution automatically detects and stops threats before they reach the data centre network and prevents massive application attacks.


  • Customizable and Automated Protection.
  • Advanced API Security
  • Zero-Second DDoS Mitigation SLA
  • Granular Attack Visibility and Reporting
  • Managed Security Services

Verdict: Despite being handled by a small team, Akamai provides excellent protection against advanced web application attacks.

Website: Akamai

#7) Imperva

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Small to large-sized enterprises.


  • Free tools for Data Classification and Database Vulnerability Testing.
  • Plus | Quote-based
  • Premium | Quote-based

Imperva is an all-around website security solution with all the required features to ensure website security and integrity. Unsurprisingly, Forrester Wave ranks the solution as a Leader. Similarly, Gartner puts the Web Application Firewall solution in its leader quadrant for advanced solutions.


  • Secure cloud and on-prem apps.
  • Stop OWASP Top 10 and Automated Top 20.
  • Attack detection
  • SIEM integration
  • Extensive reporting

Verdict: With a clear strategy for innovation, Imperva offers high customer satisfaction for all WAF appliance capabilities but needs help matching other solutions in the cloud category.

Website: Imperva

#8) Citrix WAF

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Mid to large-sized businesses – the best WAF tool for existing Citrix clients.


  • Free Demo
  • Quote-based pricing

Formerly known as NetScaler, Citrix AppFirewall provides features to analyze all the bi-directional traffic, including SSL-encrypted communication.

Using the features offered by the Web Application Firewall, enterprises can perform a deep-packet inspection of web protocols such as HTTPS, HTTP, and XML.

Similarly, the solution protects against various cyberattacks such as form validation and protection, cookie tampering, cross-site scripting attacks, JSON payload inspection, SQL injection attacks, and signature and behaviour-based protection.


  • Ensures PCI DSS compliance.
  • Protects web apps from known and emerging threats.
  • Offers infrastructure-layer security, load balancing, DDoS defence, and content inspection.

Verdict: For existing Citrix, NetScaler AppFireWall is a good choice for the existing Citrix clients or when high-performance WAF appliances are needed.

However, it competes less where application security is the highest-weighted requirement. Those evaluating it beyond a Citrix platform are urged to test it in their environments.

Website: Citrix

#9) F5 Advanced

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Mid to large-sized enterprises.


  • Cloud-based Service Subscriptions| Contact vendor
  • On-Premise Software| Contact vendor


  • Advanced application protection
  • Proactive bot defense
  • Behavioral DoS
  • Defenses for the OWASP Top 10
  • Stolen Credential Protection

Verdict: With plenty of advanced website protection features, F5 Advanced WAF is one of the most premium web app firewalls in the market.

Website: F5 Advanced

#10) Barracuda

Best Web Application Firewalls (WAF) Vendors In 2023 - Top 10

Best For Small to mid-sized enterprises.

Price: Free trial

Barracuda WAF is a robust web application firewall with advanced features such as API security, bot mitigation, alerting, and reporting. Compared to the other options, Barracuda is cost-efficient and works as a virtual appliance on Microsoft Azure IaaS.


  • Complete OWASP Protection
  • Advanced Bot Protection
  • Application Learning (Adaptive Profiling)
  • Virtual Patching and Vulnerability Scanner Integration
  • Malware Protection and Anti-Virus

Verdict: Barracuda offers many web app protection features, including malware protection. Considering its relatively low cost, the solution is perfect for small to mid-sized enterprises.

Website: Barracuda


A web application firewall is essential whether you are a personal user, a startup, a small or medium-sized business, or a big enterprise. A business or website owner can keep private information, website assets, or information about deals.

For your website or web app, you can pick either of these options based on your needs or the web infrastructure company you use. Cloudflare and Sucuri WAF are solutions individuals can use for small to big businesses.

In the same way, AppTrana is a Web App Firewall that works best for medium to big businesses.

It’s more complicated than it seems to choose the best Web Application Firewall, though, so it’s best to look at each option independently. Please carefully look over the features of each option and use the free trials before you decide which one to buy.

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