AWS Web Application Firewall

Protect your web applications from cyber threats with AWS WAF. Detect, monitor, and block malicious traffic in real-time to ensure your web-facing apps
remain secure and compliant.

Our AWS WAF Solutions for Comprehensive Web Security

Romexsoft helps businesses protect their web applications from automated and targeted threats by leveraging AWS WAF. Our certified AWS engineers configure custom and managed firewall rules, collect logs, and create CloudWatch dashboards for traffic analysis.

Custom Rules Creation

We design tailored firewall rules to match your specific security needs, blocking unauthorized access, filtering malicious requests, and ensuring compliance with industry standards.

Managed Rules Configuration

Leverage AWS WAF Managed Rules for proactive protection against SQL injection, XSS, bot traffic, and DDoS attacks. We configure and fine-tune these rules to fit your app's security posture.

Log Collection and Analysis

Enhance web security with detailed WAF logging, enabling traffic data capture for in-depth analysis of attack patterns and security events. Strengthen incident response and helps refine protection strategies.

CloudWatch Traffic Monitoring

Gain real-time visibility into web traffic and security threats with a custom CloudWatch dashboard, allowing you to analyze WAF logs, detect anomalies, and respond proactively.

Case Studies of AWS WAF Utilization

Our engineering team has undergone rigorous technical validation, ensuring adherence to AWS best practices while delivering proven, high-quality security solutions. By leveraging our deep understanding of AWS security services, we help businesses effectively protect their web applications.

Securing Web Platform with AWS WAF

Discover how we strengthened the cybersecurity of a healthcare web platform, automating threat mitigation and securing patient data.

Web Application Security Services with AWS WAF

Web Application Security with AWS WAF

Explore our custom application security services, leveraging AWS WAF to protect web app against cyber threats and automate attack prevention.

What the Clients Say

Romexsoft successfully delivered the therapy system. Its overall functionalities provided the company an advantage over its competitors. The team exercised competence, meticulous approach to Agile development and responsiveness throughout the development phase. The success of the product speaks for itself. We are far ahead of our competition in terms of features, usability, and overall strategic direction.

Gennady Gandelman

CEO at Pragma-IT

Romexsoft has been a strategic and essential partner to Omnyfy's ability to realise our Cloud Vision. Romexsoft helped us in multiple strategic projects including IaaS automation, programmatic provisioning of complex multi-tiered infrastructure taxonomy to support Omnyfy's PaaS deployments. I highly recommend Romexsoft. They have been extremely professional, knowledgeable and responsive to our needs.

Fabian Rebeiro

CEO at Omnyfy

I cannot fault Romexsoft's service. They are experts on AWS and offer advice and support 24/7. They are always available to answer any queries and if we have a problem they will resolve in swiftly. They are also a great team of people and I enjoy our weekly meetings. Since Romexsoft have managed and maintained our infrastructure, problems with our system are very rare.

Kevin Lanzon

Engineering Manager at Healthera

We've been working with Romexsoft for nearly a year now; we engaged them to assist in the migration of multiple PWS microservices to AWS and continue to leverage their skills to operate and extend those environments. Their code skills are fantastic and their communications, best represented by the weekly standups, are exemplary. I cannot recommend them highly enough.

Jon Labrie

CTO at Greenfence Greenfence

Gorgany is an outdoor company. Our customers were struggling with low speed of our website, Romexsoft successfully delivered smooth apps and data migration form OVH to AWS under a tight timeframe and within budget. We received positive feedback from our customers. Working with Romexsoft has been a great experience. It was big pleasure to work with professionals

Oleksandr Hlavatskyy

CIO at Gorgany

Romexsoft has built a skilled and proactive team for SavvyMoney, eager to propose new solutions and hire expertise when needed. They have very good developers. The Romexsoft team is fairly well versed in English, both written and spoken. We haven't had the same problem with them as with other vendors. It’s a pleasure to work with Romexsoft, and I would highly recommend them.

Bhavna Guglani

VP of Product at SavvyMoney

Our company’s ability to deliver sophisticated cloud-based solutions for the healthcare industry would be compromised without Romexsoft’s superbly skilled engineers. Whether it’s a complex development project or streamlining DevOps, we count on their expertise and are yet to see them skip a beat. As they have been for years of our relationship, they continue to provide the answers to our evolving needs.

Gennady Gandelman

CEO at Pragma-IT

Romexsoft’s team is essential to the product’s success. Not only have they kept development costs in check, but they’ve also managed to scale the solution substantially, onboarding a few key clients in the process. Their developers are equally personable and capable. We have found a team of devoted people who care about their clients and are very attentive to our needs.

Oren Liberman

CPO at Trinity Audio

Our experience working with Romexsoft's automation QA team has been extremely positive. What's equally impressive is their professionalism and ability to quickly grasp complex business logic. As a result, they've been able to efficiently identify consequential test cases, develop well-structured test scripts and implement them within a scalable framework that included integration with our CI/CD pipeline.

Gennady Gandelman

CEO at Pragma-IT

The system introduced by Romextsoft was significantly cheaper than the client's previous third-party alternative. The team was responsive, easy to work with, and facilitated direct calls for the project's progress. The team is very knowledgeable and quick to acquire answers if further research is required. They were very efficient in handing over the project upon completion. They are also proactive in recommending/identifying infrastructure problem spots and potential cost reductions.

Daniel O'Reilly

LearnCube LearnCube

Why Choose Romexsoft

Full-Fledged AWS Expertise

Our engineers permanently enhance their hard skills by obtaining AWS certification programs to validate their proficiency across a broad range of Amazon products and services.

Holistic Approach to Challenges

We always search and offer comprehensive solutions, which cover all possible stages of the project – from initial assessment to post-production maintenance.

Fast Project Ramp-Up

We quickly assemble the right team of professionals to kickstart the project without delays. Streamlined onboarding and efficient workflows ensure development begins immediately.

Ensure your web applications are secure against evolving threats.

Book a free consultation with our AWS-certified specialists to implement a tailored WAF solution.

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AWS WAF Use Cases

Web Applications Protection

A significant portion of cyberattacks exploit known vulnerabilities such as SQL injection, cross-site scripting, and other common threats highlighted in the OWASP Top 10. AWS WAF’s automatically address these common vectors, allowing you to block attacks or suspicious requests before they hit your web servers.

Scalability and Performance

The service is designed to scale automatically with your traffic demands while ensuring that security enforcement does not slow down application performance. Whether you’re running a small business website or a global SaaS platform, WAF adapts dynamically to handle growing security needs without compromising speed or availability.

Account Takeover Prevention

Credential stuffing and brute-force attacks are common tactics used by attackers to gain unauthorized access to user accounts. AWS WAF helps prevent these threats by detecting unusual login patterns, blocking automated login attempts, and enforcing rate limiting on authentication endpoints.

API Security

If you expose APIs via API Gateway or an Application Load Balancer – to enable communication between services, fetch and update app data in real-time, or enable third-party integrations – AWS WAF can protect those endpoints by limiting the number of requests from each client or blocking malicious IPs.

Traffic Control for Multi-tenant SaaS_128

Traffic Control for SaaS

If you run a multi-tenant SaaS, you may have different security needs for each tenant. By leveraging AWS web protection gateway, you can segment and manage security policies across multiple accounts or environments, ensuring each tenant is protected according to its risk profile.

Real-Time Security Insights

WAF integrates with services like Amazon CloudWatch Logs and AWS Security Hub, giving you live analytics into blocked or allowed requests. Security teams can quickly spot trends in malicious traffic, generate compliance reports, and optimize rule configurations.

How Web Application Firewall Works

A web app firewall acts as a barrier between a web application and incoming traffic, analyzing and filtering out harmful requests before they reach the actual application. Here’s how it works in details to enhance your web security:

Traffic Filtering

When a user makes a request to access a web application, the traffic passes through the WAF before it reaches the application server. A firewall monitors incoming web traffic by inspecting data packets before they are allowed to enter the network. It evaluates these packets based on predefined security rules, and can either allow or block traffic depending on criteria match.

Rule Set Analysis

It is a process of thoroughly understanding, mapping, validating, and optimizing the rules in a system to ensure they work as expected. A rule set governs specific behaviors or actions in a system. They can be customized to suit the specific needs of the application, including known attack vectors, URL filtering, and blocking certain user behaviors or patterns.

Request Filtering

On this stage WAF evaluates each incoming request to determine whether it’s secure or potentially harmful. This evaluation involves inspecting the request’s content for malignant patterns and comparing them against predefined security rules. If a request appears suspicious, the firewall immediately blocks it, preventing harmful payloads from reaching the application.

Action Based on Analysis

When AWS firewall has inspected an incoming request against security rules, it decides how to respond based on matched rules and configured policies. Safe requests pass seamlessly, malicious ones are blocked, and suspicious traffic may trigger CAPTCHA challenges, rate limits, monitoring, or redirection to custom response pages.

Learning and Adapting

WAF includes adaptive features that allow it to continuously refine security protections based on evolving threats. Instead of relying solely on static rule sets, the service can analyze traffic patterns, detect anomalies, and adjust security controls dynamically. With self-adapting defenses, it ensures proactive security, while maintaining whole application performance.

Frequently Asked Questions

What is AWS WAF?

AWS WAF (Web Application Firewall) is a security service that protects web applications and APIs from malicious traffic. It helps block threats like SQL injection, XSS, and bot attacks while allowing legitimate requests.

How does AWS WAF protect my web software or application?

The service protects your web application by filtering dangerous traffic before it reaches your servers. It blocks common threats like SQL injection, XSS, and bot attacks while allowing legitimate requests.

Tightly integrated with Amazon CloudFront, ALB, API Gateway, and AWS AppSync, AWS WAF ensures security without compromising performance. On CloudFront, rules run at AWS Edge Locations worldwide, stopping threats close to users. On regional services like ALB and API Gateway, WAF protects both public and internal resources within the AWS region.

Can I use AWS WAF to protect websites not hosted on AWS?

Yes, you can protect external websites with AWS WAF by using Amazon CloudFront as a content delivery network (CDN) or AWS Gateway Load Balancer. By routing traffic through CloudFront, AWS WAF applies security rules before requests reach your non-AWS servers.

Which AWS services are compatible with AWS WAF?

AWS WAF (Web Application Firewall) is designed to protect web applications running behind several AWS services. Currently, AWS WAF integrates with the following:

Amazon CloudFront – Protects content delivered through AWS’s global content delivery network at edge locations, blocking threats close to end users without sacrificing performance.

Application Load Balancer (ALB) – Filters traffic at the regional level, shielding both public-facing and internal applications from web exploits and damaging bots.

Amazon API Gateway – Safeguards RESTful and WebSocket APIs by inspecting and filtering requests, preventing unauthorized access and data exfiltration.

AWS AppSync – Secures GraphQL APIs with customizable rules, blocking harmful queries and protecting sensitive data in real-time.