Best Web Application Firewalls (WAF) in the UK

Cloudflare is the foundation for your infrastructure, applications, and teams. Cloudflare secures and ensures the reliability of your external-facing resources such as websites, APIs, and applications. It protects your internal resources such as behind-the-firewall applications, teams, and devices. And it is your platform for developing globally scalable applications. Your website, APIs, and applications are your key channels for doing business with your customers and suppliers. As more and more shift online, ensuring these resources are secure, performant and reliable is a business imperative. Cloudflare for Infrastructure is a complete solution to enable this for anything connected to the Internet. Behind-the-firewall applications and devices are foundational to the work of your internal teams. The recent surge in remote work is testing the limits of many organizations’ VPN and other hardware solutions.

Experience cutting-edge content delivery with 5centsCDN's subscription plans: CDN Plans Standard: From $2.5/TB, with 10+ Points of Presence and delivery in NA and EU only. Enterprise: From $15/TB, offering 50+ Points of Presence for worldwide content delivery. CDN+ Plans Standard+: From $10/TB, with 20+ Points of Presence and delivery in NA and EU only. Enterprise+: From $35/TB, access 70+ Points of Presence for worldwide content delivery. Join over 5000 satisfied clients, including OTT platforms, IPTV providers, agencies, gamers, government bodies, NGOs, and major TV channels who trust 5centsCDN for advanced video-on-demand streaming and live streaming solutions. Our robust network ensures lightning-fast, secure, and cost-effective content delivery, along with essential features like web acceleration.

SKUDONET Enterprise Edition is an Application Delivery and Security Platform built on Linux Debian 12.5 LTS for critical enterprise environments. Formerly known as Zevenet, it provides advanced L4/L7 load balancing, integrated WAF, TLS management with Let’s Encrypt and wildcard support, and protocol-aware traffic inspection across on-premises, hybrid, or cloud deployments, including SkudoCloud SaaS. A free trial is available for evaluation on the SKUDONET website. Key Features & Benefits: • High Availability: Clustering and failover to minimize downtime. • Advanced Security: WAF, L7 filtering, DoS protection, TLS with Let’s Encrypt and wildcard support. • Scalability: Optimized for high-throughput workloads with multi-core processing and efficient packet handling. • Traffic Control: Session persistence, custom routing rules, and granular L4/L7 inspection. • Centralized Management: Unified dashboard for configuration, monitoring, and policy automation.

Haltdos promises an intelligent WAF & DDoS mitigation service with multi-layered security to online businesses requiring zero management. It is a self-learning solution that continuously learns and adapts network/website traffic and provides real-time and historical insights with stunning visualization. It also provides attack alerts and notifications, attack signatures, customer misbehavior, and audit trail.

Simplify application delivery with software-defined load balancers, web application firewall, and container ingress services for any application in any data center and cloud. Simplify administration with centralized policies and operational consistency across on-premises data centers, and hybrid and public clouds, including VMware Cloud (VMC on AWS, OCVS, AVS, GCVE), AWS, Azure, Google, and Oracle Cloud. Free infrastructure teams from manual tasks and enable DevOps teams with self-service. Application delivery automation toolkits include Python SDK, RESTful APIs, Ansible and Terraform integrations. Gain unprecedented insights, including network, end users and security, with real-time application performance monitoring, closed-loop analytics and deep machine learning.

Fortinet is a global leader in cybersecurity solutions, known for its comprehensive and integrated approach to safeguarding digital networks, devices, and applications. Founded in 2000, Fortinet provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. At the core of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly integrates security tools to deliver visibility, automation, and real-time threat intelligence across the entire network. Trusted by businesses, governments, and service providers worldwide, Fortinet emphasizes innovation, scalability, and performance, ensuring robust defense against evolving cyber threats while supporting digital transformation and business continuity.

Empower your developers, connect with your customers, and grow your business with today’s leading edge cloud platform. Deliver the best online experiences possible with our edge cloud platform, built to strengthen your current teams and technology. We move data and applications closer to your users — at the edge of the network — to help your websites and apps perform faster, safer, and at global scale. Fastly's highly programmable CDN gives you the freedom to customize delivery right at the edge. Delight your users with the content they want at their fingertips. Our powerful POPs, driven by solid-state drives (SSDs) and hosted in well-connected locations around the world, help us keep more content in cache longer for fewer trips to the origin. Instant Purge and batch purging with surrogate keys let you cache and invalidate highly dynamic content with a mean purge time of 150 milliseconds*. Serve headlines, inventory, or weather forecasts that are always up to date.

Since 2003, Loadbalancer.org has provided reliable, versatile and cost-effective load balancers engineered to improve the availability of your most critical IT applications. We have extensive experience of solving application delivery challenges, so you can expect honest advice and outstanding support from the load balancer experts. Working closely with leading technology providers in medical, object storage and print, our ADC solutions are specifically tailored to ensure seamless integration and better compatibility for enhanced performance of the entire solution.

Myra Security is a leading provider of cloud-based security solutions protecting organizations against modern cyber threats. With a focus on reliability, performance, and compliance, Myra's services are technically robust and easy to integrate. The portfolio includes: DDoS Protection – Multi-layer mitigation stopping large-scale and targeted attacks before they impact availability. WAF – An adaptive firewall blocking malicious traffic and shielding web applications and APIs from common vulnerabilities. CDN – A global network accelerating content delivery and stabilizing performance during traffic spikes. Bot Management – Advanced detection preventing scraping, abuse, and credential-stuffing. EU CAPTCHA – Secures websites and login flows against bots and fraud without disrupting users. Myra AI Workspace – Unlock AI for organizations with sensitive data, without the compliance, cost and security headaches. Hosted on Myra-owned EU infrastructure.

Tencent EdgeOne is a powerful CDN (Content Delivery Network) and cloud security platform designed to accelerate your web applications while providing comprehensive protection against cyber threats. As a top-tier China CDN provider, Tencent EdgeOne ensures fast and reliable content delivery across China and global markets. Key Features: - CDN Acceleration: Fast content delivery with optimized routing for superior user experience. - DDoS Protection: Advanced mitigation to safeguard your infrastructure from disruptive attacks. - WAF (Web Application Firewall): Robust web protection against OWASP top vulnerabilities, SQL injection, XSS, and more. - China CDN: Optimized network nodes across China for low latency and high availability in the Chinese market. Tencent EdgeOne combines cutting-edge technology with Tencent’s extensive experience in network infrastructure, making it the preferred choice for businesses targeting China and global audiences.

Choose us because we offer the easiest to use technology without sacrificing features or performance. We back this up with outstanding support and care, delivered under a fair and cost effective pricing model Our technology is used by the smallest startups with big ideas and small budgets all the way to global enterprises and anything in between. We love them all the same! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the Only true ADP Application Delivery Platform where the functionality and lifespan can be enhanced using the app store or applications that you develop in house.

Protect your applications from common web vulnerabilities such as SQL injection and cross-site scripting. Monitor your web applications using custom rules and rule groups to suit your requirements and eliminate false positives. Get application-level load-balancing services and routing to build a scalable and highly available web front end in Azure. Autoscaling offers elasticity by automatically scaling Application Gateway instances based on your web application traffic load. Application Gateway is integrated with several Azure services. Azure Traffic Manager supports multiple-region redirection, automatic failover, and zero-downtime maintenance. Use Azure Virtual Machines, virtual machine scale sets, or the Web Apps feature of Azure App Service in your back-end pools. Azure Monitor and Azure Security Center provide centralized monitoring and alerting, and an application health dashboard. Key Vault offers central management and automatic renewal of SSL certificates.

High-performance advanced load balancing solution that enables your applications to be highly available, accelerated, and secure. Ensure efficient and reliable application delivery across multiple datacenters and cloud. Minimize latency and downtime, and enhance end-user experience. Increase application security with advanced SSL/TLS offload, single sign-on (SSO), DDoS protection and Web Application Firewall (WAF) capabilities. Complete full-proxy Layer 4 load balancer and Layer 7 load balancer with flexible aFleX® scripting and customizable server health checks.

WAPPLES SA (software appliance) is a virtual web application firewall (WAF) that can be seamlessly integrated with cloud systems and other virtual environments. It is a great solution for enterprise customers such as data centers and hosting providers as well as SMBs such as managed security service providers and private cloud business infrastructures. WAPPLES SA has support for popular hypervisors including KVM, Citrix Hypervisor, and vSphere Hypervisor. WAPPLES SA (Software Appliance) generally provides all the capabilities of the hardware WAPPLES appliance with the added ability to scale as your business grows. Based on the same award-winning WAPPLES technology, WAPPLES SA can detect and block known, modified, and zero-day attacks with its Contents Classification and Evaluation Processing (COCEP™) engine.

Reblaze is the leading provider of cloud-native web application and API protection, providing a fully managed security platform. Reblaze’s all-in-one solution supports flexible deployment options (cloud, multi-cloud, hybrid, data center and service mesh), deployed in minutes and includes state-of-the-art Bot Management, API Security, next-gen WAF, DDoS protection, advanced rate limiting, session profiling, and more. Unprecedented real time traffic visibility as well as highly granular policies enables full control of your web traffic. Machine learning provides accurate, adaptive threat detection, while dedicated VPC deployment ensures maximum privacy, performance and protection while minimizing overhead costs. Reblaze customers include Fortune 500 companies and innovative organizations across the globe.

Greypanel CDN is an independently-researched and developed dispatching system that intelligently distributes globally-located acceleration nodes to users based on their access location. By assigning the nearest resources to users, GreypanelCDN improves web services capacity, network access quality, download speeds and reduces response time, providing in smoother user experience. Targeted at portals and e-commerce sites, GreypanelCDN caches static content such as web pages, HTML, CSS, JS, images and files onto the nodes to accelerate the distribution process. Visitors will be able to access the content from the nearest node and load complex content in seconds, significantly improving web access speeds and reducing site response time, leading to better user experience. Enjoy a fast, stable and secure dynamic request acceleration with our extensive network of acceleration nodes, a large reserve of direct connections and an intelligent scheduling system.

Application delivery at scale can be complex. Make it simpler with NetScaler. Firmly on-prem. All-in on cloud. Good with hybrid. Whichever you choose, NetScaler works the same across them all. NetScaler is built with a single code base using a software-based architecture, so no matter which ADC form factor you choose — hardware, virtual machine, bare metal, or container — the behavior will be the same. Whether you are delivering applications to hundreds of millions of consumers, hundreds of thousands of employees, or both, NetScaler helps you do it reliably and securely. NetScaler is the application delivery and security platform of choice for the world’s largest companies. Thousands of organizations worldwide — and more than 90 percent of the Fortune 500 — rely on NetScaler for high-performance application delivery, comprehensive application and API security, and end-to-end observability.