In this article we’re going to show where Gartner placed the vendors in 2018 Magic Quadrant for Web Application Firewalls (WAF).
- Leaders: Imperva, Akamai
- Challengers: F5, Cloudfare, Fortinet, Barracuda Networks, Citrix
- Niche players: Amazon Web Service, Ergon Informatik, Microsoft, Instart and Rohde & Schwarz Cybersecurity
- Visionaries: Oracle, Radware

At link https://www.consulthink.it/en/waf-solutions-in-comparison-2018-gartner-magic-quadrant-for-waf/ you can find an interesting comparison of the above-mentioned technologies relative to their strengths and weaknesses.
I tried to summarize them in the following table:
[table id=6 /]