### Contents

- [**Articles**](#resources-articles)
- [**Glossary Terms**](#resources-glossary_terms)
- [**Discussions**](#resources-discussions)
- [**Reports**](#resources-reports)

# Web Application Firewalls (WAF) Resources

##### Articles, Glossary Terms, Discussions, and Reports to expand your knowledge on Web Application Firewalls (WAF)

Resource pages are designed to give you a cross-section of information we have on specific categories. You'll find [articles](#resources-articles) from our experts, [feature definitions](#resources-glossary_terms), [discussions](#resources-discussions) from users like you, and [reports](#resources-reports) from industry data.

[ContentsExpand/Collapse Contents](#)
- [**Articles**](#resources-articles)
- [**Glossary Terms**](#resources-glossary_terms)
- [**Discussions**](#resources-discussions)
- [**Reports**](#resources-reports)

## Web Application Firewalls (WAF) Articles

[![What Is Cross-Site Scripting? How To Prevent XSS Attacks](https://learn.g2.com/hubfs/G2CM_FI652_Learn_Article_Images_%5BCross-site_scripting%5D_V1b.png "What Is Cross-Site Scripting? How To Prevent XSS Attacks")](https://www.g2.com/articles/cross-site-scripting)

[
### What Is Cross-Site Scripting? How To Prevent XSS Attacks
](https://www.g2.com/articles/cross-site-scripting)
When we think of cyberattacks, we think about data breaches, viruses, and malware, but have you ever heard of cross-site scripting, aka XSS attacks? Probably not. Even though it’s one of the most notorious and common threats in web applications we use today. So what is it?

[
 ![Soundarya Jayaraman](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Soundarya Jayaraman")
SJ

](https://learn.g2.com/author/soundarya-jayaraman)

by Soundarya Jayaraman

[![2023 Trends in DevSecOps Software](https://learn.g2.com/hubfs/2023%20trends%20in%20DevSecOps.png "2023 Trends in DevSecOps Software")](https://www.g2.com/articles/devsecops-software-trends-2023)

[
### 2023 Trends in DevSecOps Software
](https://www.g2.com/articles/devsecops-software-trends-2023)
This post is part of G2's 2023 digital trends series. Read more about G2’s perspective on digital transformation trends in an introduction from Emily Malis Greathouse, director, market research, and additional coverage on trends identified by G2’s analysts.

[
 ![Adam Crivello](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Adam Crivello")
AC

](https://learn.g2.com/author/adam-crivello)

by Adam Crivello

[![G2 on Cloud Security: Investigating the Risks of Cloud Computing](https://learn.g2.com/hubfs/G2CM_BI098_Backlog_Images_%5BCloud_computing_risks%5D_V1a.png "G2 on Cloud Security: Investigating the Risks of Cloud Computing")](https://www.g2.com/articles/investigating-risks-of-cloud-computing)

[
### G2 on Cloud Security: Investigating the Risks of Cloud Computing
](https://www.g2.com/articles/investigating-risks-of-cloud-computing)
The rapid adoption of cloud computing services has given businesses a false sense of security when it comes to protecting their data.

[
 ![Aaron Walker](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Aaron Walker")
AW

](https://learn.g2.com/author/aaron-walker)

by Aaron Walker

[![The G2 on the Cloud: The History of Cloud Adoption](https://learn.g2.com/hubfs/blue-sky-clouds-flying-55787.jpg "The G2 on the Cloud: The History of Cloud Adoption")](https://www.g2.com/articles/the-history-of-cloud-adoption)

[
### The G2 on the Cloud: The History of Cloud Adoption
](https://www.g2.com/articles/the-history-of-cloud-adoption)
The concept of cloud computing isn’t new. References to cloud computing have been around since the 1960s, although at the time, “cloud” wasn’t a part of the lexicon. Back then, using remote computing and processing elements was called “network-based.”

[
 ![Zack Busch](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Zack Busch")
ZB

](https://learn.g2.com/author/zack-busch)

by Zack Busch

Show More

## Web Application Firewalls (WAF) Glossary Terms

[![Security Protocol](https://learn.g2.com/hubfs/G2CM_GI813_Glossary_Article_Images-%5Bsecurity_protocol%5D_V1a.png "Security Protocol")](https://www.g2.com/glossary/security-protocol-definition)

[Security Protocol](https://www.g2.com/glossary/security-protocol-definition)

Security protocols are sequenced communications that authenticate and protect online confidentiality. Learn more about using security protocols.

by Holly Landis

Explore our Technology Glossary

Browse through dozens of terms to better understand the products you purchase and use everyday.

[Find new features](https://www.g2.com/glossary)

## Web Application Firewalls (WAF) Discussions

0

Question on: Cloudflare Application Security and Performance
[Is Cloudflare WAF worth?](/discussions/is-cloudflare-waf-worth)

Is Cloudflare WAF worth?

yes

Answered: Muhammad Farrukh Zamir on November 3, 2023

Absolutely worth it! If you have a service that is potential victim of bots, WAF could help you set the rules and limit. For example, if you are operating in a country and the traffic is coming from other countries that doesn't give much value to your resources, you can restrict. Also there are so many other features that will help the website.

Answered: Vikas V on September 5, 2025

[See more answers (1)](javascript:void(0);)

[Your answer](/discussions/is-cloudflare-waf-worth/comments/new?remote=true)

0

Question on: HAProxy
[Is HAProxy a reverse proxy?](/discussions/is-haproxy-a-reverse-proxy)

Is HAProxy a reverse proxy?

Yes, it's a reverse proxy. Actually it's one of the best reverse proxies out there.

Answered: Edgars Voroboks on December 2, 2022

Definitely yes

Answered: Jérémy Lecour on December 2, 2022

[See more answers (1)](javascript:void(0);)

[Your answer](/discussions/is-haproxy-a-reverse-proxy/comments/new?remote=true)

0

Question on: Imperva Web Application Firewall (WAF)
[Is imperva a Web application firewall?](/discussions/is-imperva-a-web-application-firewall)

Is imperva a Web application firewall?

Yes, Imperva is a well-known provider of web application firewall (WAF) solutions. Imperva offers a Web Application Firewall product, known as Imperva WAF, which is designed to protect web applications from various online threats, including common vulnerabilities and attacks. Imperva WAF acts as a security barrier between web applications and the Internet, filtering and monitoring web traffic to identify and block malicious activities. It provides security features, policy management, threat intelligence integration, and compliance support to enhance the security posture of web applications.

Answered: Vishnu Mani on May 19, 2023

[Your answer](/discussions/is-imperva-a-web-application-firewall/comments/new?remote=true)

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## Web Application Firewalls (WAF) Reports

Mid-Market Grid® Report for Web Application Firewall (WAF)

Summer 2026

G2 Report: Grid® Report

Grid® Report for Web Application Firewall (WAF)

Summer 2026

G2 Report: Grid® Report

Enterprise Grid® Report for Web Application Firewall (WAF)

Summer 2026

G2 Report: Grid® Report

Momentum Grid® Report for Web Application Firewall (WAF)

Summer 2026

G2 Report: Momentum Grid® Report

Small-Business Grid® Report for Web Application Firewall (WAF)

Summer 2026

G2 Report: Grid® Report

Enterprise Grid® Report for Web Application Firewall (WAF)

Spring 2026

G2 Report: Grid® Report

Small-Business Grid® Report for Web Application Firewall (WAF)

Spring 2026

G2 Report: Grid® Report

Mid-Market Grid® Report for Web Application Firewall (WAF)

Spring 2026

G2 Report: Grid® Report

Grid® Report for Web Application Firewall (WAF)

Spring 2026

G2 Report: Grid® Report

Momentum Grid® Report for Web Application Firewall (WAF)

Spring 2026

G2 Report: Momentum Grid® Report