The best free Web Application Firewall alternative to Cloudflare is Anubis. It's not free, so if you're looking for a free alternative, you could try Anubis or Sucuri. If that doesn't suit you, our users have ranked more than 50 alternatives to Cloudflare and eight of them are free Web Application Firewalls so hopefully you can find a suitable replacement. Other interesting free Web Application Firewall alternatives to Cloudflare are Gcore, Alviy, open-appsec and SafeLine.
Applies sha256 proof-of-work challenges to incoming HTTP requests, targeting AI crawlers, bots that ignore robots.txt, and automated scrapers, protecting server resources and preventing unwanted search engine indexing for privacy-focused sites.
A web security portfolio offering a combination of on-premise installed security software in conjunction with a cloud hosted web application firewall and CDN.
BunkerWeb is a next-generation and open-source Web Application Firewall (WAF).
Edge cloud infrastructure with low latency around the world. Approved by game publishers and media. Store, deliver and protect any content for your latency-sensitive services. Reduce capital and operating costs. The best delivery speed in Europe.
Alviy is Infrastructure-as-a-Service provides Dynamic DNS, Backup/Secondary DNS service and domain hosting with DNS zone management.
open-appsec (openappsec.io) in an open-source initiative that builds on machine learning to provide pre-emptive web app & API threat protection against OWASP-Top-10 and zero-day attacks.
SafeLine is a docker-based, easy to use, self-hosted free web application firewall (WAF) that protects web apps by filtering and monitoring HTTP traffic between a web application and the Internet.
Coraza is an open source, enterprise-grade, high performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set v4.
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Best on Prem alternative so far