Blog WAF by Cloudflare: Security Boost with Web Application Firewall

E-commerce | Mar 31, 2023

WAF by Cloudflare: Security Boost with Web Application Firewall

Artjoms Lanko
E-commerce certified specialist

In the constantly changing web landscape, safeguarding web applications has become crucial. With the rise of cyberattacks and web app vulnerabilities, enterprises require a strong security mechanism to defend their digital assets. Cloudflare's Web Application Firewall (WAF) offers an extensive shield against a myriad of threats.

What is the Cloudflare WAF?

The Cloudflare WAF is a cloud-centric security service devised to secure web applications from a broad spectrum of online dangers, encompassing SQL injection, cross-site scripting (XSS), and other prevalent vulnerabilities. It scrutinizes and filters inbound HTTP and HTTPS traffic, preventing malevolent requests from reaching your web application. Cloudflare's WAF employs a blend of bespoke rules and pre-established rule sets to deliver real-time defense, ensuring the safety of your web applications.

The more the merrier

The Open Web Application Security Project (OWASP) Top 10 represents a well-known compilation of the most significant web application security threats. Cloudflare's WAF incorporates rule sets designed to counter these hazards, including issues like injection flaws, compromised authentication, unauthorized exposure of sensitive information, XML External Entities (XXE) exploitation, inadequate access management, security configuration lapses, cross-site scripting (XSS) attacks, unsecured deserialization, employment of elements with known susceptibilities, and insufficient tracking and surveillance.

SQL Injection (SQLi): This set of rules focuses on combating attacks that exploit weaknesses in the database layer of web applications, enabling intruders to execute malicious SQL commands and access, alter, or erase data without authorization.

Cross-Site Scripting (XSS): This rule set defends against XSS attacks, which involve injecting harmful scripts into reputable websites to pilfer confidential data, seize user sessions, or vandalize the site.

Remote File Inclusion (RFI) and Local File Inclusion (LFI): These rule sets target thwarting attacks that leverage vulnerabilities in web applications to incorporate remote or local files, potentially resulting in the execution of malevolent code or unauthorized access to classified information.

DDoS Mitigation: Cloudflare's solution offers several essential features for effectively shielding your online enterprise. By analyzing traffic intelligently, the system recognizes and filters out harmful traffic in real-time. Comprehensive defense encompasses both Layer 3/4 and Layer 7 attacks, ensuring a sturdy barrier against various DDoS dangers. The Anycast network assimilates and disperses DDoS traffic across multiple data centers, averting single points of failure and maintaining website accessibility.

Furthermore, automatic detection and mitigation reduce the possible impacts of DDoS assaults on your online operations. With Cloudflare's DDoS mitigation service, you can proactively defend your website and e-commerce platform from disruptive cyber menaces.

Platform-specific rule sets: Cloudflare WAF also presents rule sets designed to safeguard particular web applications such as WordPress, Joomla, Drupal, and Magento by addressing their known vulnerabilities and security concerns.

Additionally, you can develop custom rules to fulfill unique security demands and adapt WAF to your distinct requirements.

Automated updates for enhanced security

Cloudflare Firewall features an automatic update mechanism for its rule sets and threat intelligence, ensuring your web application remains shielded from new emerging threats and vulnerabilities. This adaptive update system frequently refreshes security rules to stay abreast of the ever-changing threat environment. Consequently, your web application security remains current and safeguarded against newly identified attack vectors and potential weaknesses.

Seamless integration for simplified security management

Cloudflare has engineered its firewall to effortlessly blend with your existing infrastructure, offering an uncomplicated and efficient method to bolster security. As a result, WAF minimizes the intricacy of implementing and overseeing security measures. Additionally, the user-friendly Cloudflare dashboard enables you to conveniently configure and monitor your WAF settings, streamlining your security management procedure and guaranteeing optimal protection for your web applications.

Image enhancement

Cloudflare provides more than just web application firewall services. It delivers a variety of features that assist website owners in optimizing and enhancing their website performance.

One such feature is the automatic compression and conversion of images into next-generation formats like WebP. This helps decrease your website's loading time by presenting visitors with smaller, more efficient image files.

Mobile optimization

Apart from security solutions, Cloudflare WAF offers additional services that help boost the performance of mobile websites. One such service is Cloudflare's Mobile SDK, enabling developers to observe and optimize their mobile app performance. The SDK supplies information on app performance, network conditions, and user experience, allowing developers to refine their apps for optimal functionality on mobile devices.

Content Delivery Network (CDN)

All Cloudflare plans encompass an integrated CDN (Content Delivery Network) service devised to enhance the performance and user experience of your website.

Integrating the CDN service into each plan delivers several advantages:

  • Swifter content delivery: Cloudflare's CDN caches and distributes static content (such as images, stylesheets, and JavaScript files) from its worldwide network of servers. This ensures content is supplied from the server geographically nearest to the user, yielding faster downloads and reduced latency.
  • Diminished server load: Delegating the delivery of static content to Cloudflare's CDN significantly decreases the strain on your origin server, enabling your server to process dynamic content more effectively, and improving overall website performance.
  • Lower bandwidth usage: Since cached content is served directly from Cloudflare's servers, the volume of data transmitted from your origin server to users is minimized, leading to reduced bandwidth consumption and hosting expenses.
  • Enhanced user experience: Quicker load times and improved website performance contribute to a superior user experience, potentially resulting in increased user activity, decreased bounce rates, and higher sales for e-commerce sites.
  • Global access: Cloudflare's CDN consists of a vast network of servers distributed worldwide. This guarantees your content is delivered rapidly and efficiently to users globally, irrespective of their location.
  • Augmented reliability: The same CDN assists in balancing the load across your entire server network, diminishing the risk of a single point of failure. In case of an issue with one server, the CDN automatically redirects traffic to the next available server, maintaining site availability.

How to configure it?

Cloudflare presents a broad array of functionalities that substantially enhance website administration, spanning from heightened security to performance improvement. These features are readily manageable via Cloudflare's accessible and instinctive dashboard, streamlining the process for website admins.

The straightforward setup is an additional advantage, enabling you to safeguard and optimize your site with the all-inclusive toolkit in just a few hours.

The uncomplicated setup procedure encompasses the subsequent steps:

  1. Sign up for a Cloudflare account and select the plan that aligns with your requirements.
  2. Input your website's domain name, and Cloudflare will autonomously examine your DNS records.
  3. Add your website by submitting your domain name, and Cloudflare will once again automatically scan your DNS records.
  4. Review the displayed DNS records and implement any necessary adjustments.
  5. Replace your existing name servers with those supplied by Cloudflare, typically accomplished via your domain registrar's control panel.
  6. Upon updating the name servers, Cloudflare will confirm the modifications and activate its services for your site.

After these steps are completed, you can start using Cloudflare's extensive features, such as CDN, WAF, DDoS protection, and image optimization.

Magebit is a full service eCommerce agency specialized in Magento. At Magebit we create the wonders of eCommerce and support small sites as well as large enterprises.

You can contact us at or through the contact us page.

Artjoms Lanko
E-commerce certified specialist
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