Web application firewalls (WAF) are essential components of any comprehensive website security solution, preventing harmful traffic from reaching your server and potentially launching attacks against it.

WAFs come as physical solutions, software packages or cloud-based systems; some combine DDoS protection with the firewall while others offer them separately.


StackPath is an edge computing platform composed of virtual machines (VMs), containers and CDN/WAF to build, accelerate, and protect latency-sensitive workloads. With data centers around the world and superior performance and security compared to core cloud providers, this secure private network backbone offers superior performance and protection compared to core providers.

Their WAF provides robust protection from SQL injection and XSS attacks out of the box, including SQL injection and XSS protection, blocking dangerous bots automatically, challenging visitors with captchas to test them out and providing a powerful rule editor to create custom rules.

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Sucuri may not be one of the more well-known internet security brands, but they are nonetheless an esteemed cybersecurity provider founded in 2008. Their name derives from an anaconda word in Brazilian that symbolizes strength – something every web hosting and cybersecurity professional requires in their business partners.

The company’s flagship product is its cloud-based WAF and IPS that protects websites against malicious requests, DDoS attacks and password guessing attempts. Furthermore, virtual website patching capabilities eliminate vulnerabilities while conserving server resources.

Sucuri is easy to set up; all it requires is changing your DNS A record so traffic goes directly to their firewall. In addition, their team of experts perform regular full site scans.


FortiWeb is an advanced Web Application Firewall (WAF), providing business-critical applications with protection from OWASP Top 10 threats, DDoS attacks and malicious bots. It utilizes a multi-layered approach with AI enhanced threat detection to safeguard against cross-site scripting attacks such as SQL injection, cookie poisoning and buffer overflows that commonly plague applications today.

As well as protecting sensitive data against various attacks that target it, such as credential stuffing attacks that seek to steal user IDs and passwords, the service also employs an integrated CASB and security intelligence services platform to detect and respond in real time to threat activity.

Visual Reporting Tool, Hardware Acceleration and Anti Spyware Capabilities to Help Enhance WAF Performance! Multiple Deployment Options including Virtual Appliances. Scalability licensing model that lets you adjust as necessary.

F5 Essential App Protect

Firewalls monitor incoming traffic for potentially malicious content or actions, and web application firewalls specifically protect webserver services responsible for providing webpages to user browsers.

F5 Essential App Protect is designed for easy deployment by DevOps teams with its API-first approach and its intuitive user interface. From configuring protection options to accessing security event logs, everything can be defined via a JSON template.

IT organizations can also utilize Essential App Protect to securely deploy applications using Amazon CloudFront, a Content Delivery Network service from Amazon Web Services. This makes managing application security simpler across multi-cloud environments.

Akamai Kona Site Defender

Akamai Kona Site Defender provides protection for websites and applications, bot mitigation, API security, leveraging Akamai’s massive network and server infrastructure typically used to provide Web acceleration services. Its scalable design provides always-on security with adaptive rate controls that distinguish between large enterprise proxy server proxies and malicious bots.

Kona Site Defender can provide businesses with the security needed to defend against DDoS attacks that cost millions in transactions and business productivity. KSD also helps companies protect their brand value and reputation against an array of attack types; with robust protections regularly updated by a team of security experts to stay ahead of threats, its purposeful protection of primary sites, apps, data, brand value and reputation is invaluable.