What is a Web Application Firewall and Why Do You Need It?

The nature of cyberattacks has changed in 2026. Today, attackers are not targeting just your networks. They are targeting your web applications as well. 

According to studies, nearly 50% of all cyberattacks now start at the web application layer. 

The nature of attacks has also diversified. Today you have threats like API abuse, credential stuffing to even AI bot attacks.

This is exactly the reason why having a Web Application Firewall or WAF is essential for modern businesses in 2026.

In this article, we will look at what is a Web Application Firewall, why your business needs it as well as some of the important things you need to know to get started.  

What is a Web Application Firewall (WAF)?

A Web Application Firewall is a security layer that monitors, filters and blocks HTTP/HTTPS traffic between users and your web applications. 

Unlike traditional firewalls that protect networks, a WAF operates at the application layer, where most modern attacks happen. 

Think of your traditional firewall as the security guard of your building. Its duty is to check who is allowed to enter. 

A WAF, on the other hand, is like the receptionist of the building. It checks what visitors are doing once they are in. Are they doing what they are supposed to do, or do their behavior raise suspicions?  

So, why are they necessary? Well today most cyberattacks seem normal to the security guard, it is only the receptionist who can detect their true intentions! 

Why Does Your Business Need WAF in 2026?

Now that we know what a Web Application Firewall is, let us now look at why you should invest in it. In 2026, APIs, applications, and other digital services are the primary interfaces for your customers. They are also the most targeted attack surfaces. 

Web Applications are Now the Primary Target

As said before, modern cyberattacks have commonly targeted applications directly, especially in the past couple of years. 

• Over 7.7 billion attacks were blocked across websites and APIs in 2025. 
• Web applications constitute the majority of attack vectors globally 
• APIs face 43% more attacks than traditional web apps. 

What does this mean for your business? 

If your business runs web or mobile applications, you will be exposed to threats, whether you realize it or not. 

The Volume of Sophisticated Attacks are Increasing Everyday

Attacks are now leveraging the capabilities of automation, AI, and software bots to scale attacks faster than ever. 

• Bot attacks have been increasing by more than 40% YoY since 2024. 
• Malicious traffic can sometimes account for more than 70% of total web requests in some environments 
• API attacks have surged more than 8X since 2020s 

What does this mean for your business? 

Given how sophisticated the attacks have become, you need real-time, adaptive protection. And that is exactly what a WAF provides. 

Traditional Security Tools Cannot Protect Applications 

Your existing firewalls and network security tools operate at a lower layer. They are inadequate when it comes to detecting application behavior. 

• Modern attacks exploit application logic, APIs, and user behavior. 

• Static rule-based systems often fail against advanced zero-day attacks. 

What does this mean for your business? 

If you don’t have a Web Application Firewall, then you will not have the visibility that is required to protect the most critical layer of the digital infrastructure. 

How Does WAF Work?

Here is an overview of how a Web Application Firewall works: 

STEP 1: Every user request is first routed through the WAF before it reaches your application. 

STEP 2: WAF analyzes each request for suspicious patterns, payloads, and behaviors. Malicious code injections, abnormal request patterns, and attack signatures are analyzed. 

STEP 3: The incoming traffic is evaluated against predefined security rules, inbuilt behavioral analysis models and real-time threat intelligence feeds. 

STEP 4: If an access request is deemed to be harmful, the WAF can either block it outright, or ask for a CAPTCHA test.  If required, it also rate limits suspicious activity. 

STEP 5: Safe traffic is allowed to pass and access your application without any disruption. 

Which is the Best WAF Platform for Your Business?

A Web Application Firewall (WAF) platform allows you to build your own WAF based on its preconfigured capabilities. In 2026, the three of the best WAF platforms are: 

• Akamai WAF 

• Cloudflare 

• Imperva 

So, which one should you choose? Let us compare them and find which of them is best for your business. 

Feature	Akamai	Cloudflare	Imperva
Deployment Model	Edge-based on a global CDN.	Cloud-based.	Cloud and on premises.
DDoS Protection	Enterprise-grade protection against majority attacks.	Might face issues in detecting advanced attacks.	Multi-layer protection, but with limitations.
Bot Protection	Advanced, AI-driven bot protection.	Built in protection, but ideal for SMBs only.	Advanced but requires additional cost.
API Security	Deep, enterprise-grade protection.	API protection available in higher plans.	Stronger API protection than Cloudflare
Customization	Very high level of customization.	Moderate level of customization.	Higher level of customization compared to Cloudflare.

Why Should You Choose Akamai WAF?

Akamai is best for enterprises and high-scale digital platforms. 

It gives you excellent edge-based protection, massive threat intelligence, and managed Akamai security services.

Compared to most other platforms, it is more effective to stop threats before they reach your infrastructure. 

Use Cases for Different Industries

Let us now explore the use cases of a Web Application Firewall across different industries and how we help you leverage Akamai in such scenarios. 

Financial Services

The Problem: 

The BFSI sector faces constant threats from attacks like credential stuffing, account takeover (ATO) attacks, and API abuse. The primary target in such cases is the login interface and payment systems. 

What We Do: 

Our team at Evolvous can implement Akamai WAF with customized features with advanced bot management, rate limiting, and behavioral analysis. This can be useful in detecting and blocking frauds in real-time. 

The Result: 

• Fewer unauthorized login attempts. 
• Highly secure digital transactions. 
• More effective regulatory compliance. 

Explore More Solutions for the Financial Services Industry

Healthcare

The Problem: 

Healthcare applications handle sensitive patient data. They are frequent targets for data breaches and even ransomware attacks. 

What We Do:  

We customize and deploy Akamai WAF to protect patient portals, APIs, and web apps. At the same time, we ensure complete compliance with strict data protection regulations. 

The Result: 

• Better protection of sensitive health records. 
• Reduced exposure to application threats. 
• Lower risks of EHR and other data loss. 

Explore More Solutions for Healthcare

Manufacturing

The Problem: 

Modern manufacturers run integrated systems. These are often exposed to API abuse, ransomware entry points, and bot attacks. This points daily operations and supply chains at risk. 

What We Do: 

We implement Akamai WAF to secure web applications and API across your digital infrastructure. Our team will set up traffic filtering, API protection, and mitigating bot attacks so that only safe interactions reach your critical systems. 

The Result: 

• Lower downtime due to attacks. 
• Protection against ransomware entry points. 
• Improved operational resilience.

Explore More Solutions for Manufacturing

Find Out How Akamai WAF Can Secure Your Business 

Get your first Proof of Concept and experience how our Akamai WAF can help you boost your digital security. 

Get 50% Off on Your First POC

What is the Cost of Akamai WAF? 

The cost of Akamai Web Application Firewall depends on several factors. But here is an estimate of the costs that you should expect: 

• Mid-sized deployments: US $10,000 to US $40,000 per year 
• Large scale enterprises: US $40,000 to US $150,000 and more per year. 

Here are the key factors that determine the Total Cost of Ownership (TCO) of Akamai WAF. 

1. Volume of traffic, where higher traffic means higher costs. 
2. The range of security modules that you enable. 
3. Akamai costs also include global CDN delivery, edge-based request filtering and performance optimization  
4. The managed services that you will be opting for. 

Get a Complete Cost Estimate for Akamai WAF 

Contact our team today and get a custom cost estimate based on your exact needs.

Save up to 25% on Akamai WAF with our Custom Estimates

How to Get Started with Akamai WAF?

The right way to start will be to assess your needs and see if Akamai is the right fit for you. 

Schedule an assessment with our team 

If you already have a Web Application Firewall or want to integrate one with your existing security network, then you can get support for Akamai migration. 

You can also connect with our team to get a Akamai implementation roadmap. 

Secure Your Web Applications with Akamai 

Get in touch with our certified Akamai WAF partner consultants, and our team will help you reduce web application attacks by more than 60%. 

Get Started Today 

Frequently Asked Questions

• How long does it take to set up Akamai WAF? 

In most cases, it can take between 3 to 9 months to set up the web application firewall, from scratch. However, in certain cases, it might take significantly longer. 

• Can a WAF be integrated with my existing security infrastructure? 

Yes. Akamai and most other WAF platforms allow you to integrate the firewall with your existing security setup. Akamai wins over its competition as it can be integrated more easily and efficiently. 

• Can I set up a web application firewall in my hybrid network? 

Yes. You can set up the WAF for your hybrid work environment. It can protect applications hosted on your servers as well as the cloud.