If you’re running a personal website or small app and are concerned about hackers, SQL injections, or bot scraping, there’s good news — you don’t need a security team to defend yourself.
Meet SafeLine, a powerful open-source Web Application Firewall (WAF) that already has 11.8K stars on GitHub and is trusted by over a million websites.
In this article, I’ll show you how to deploy SafeLine in just 3 minutes — even if you’ve never used a WAF before.
Why Choose SafeLine?
SafeLine stands out thanks to its semantic detection engine and reverse proxy architecture, offering strong protection without adding unnecessary complexity.
Key features:
- Easy Deployment: Fully containerized with a one-line installer — perfect for Docker and Linux users.
- Intelligent Detection: Uses advanced semantic analysis instead of regex or signatures, reducing false positives.
- Minimal Latency: Adds just ~1ms per request, thanks to its lightweight linear detection engine.
- Built for Stability: Based on Nginx, with built-in health checks and automatic failover.
Step-by-Step Setup (Takes ~3 Minutes)
1. Install SafeLine on a Standalone Server
Run this command on a Linux server that is not your main web server:
bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/setup.sh)"
-- --en
Once installation completes, open your browser and go to:
https://<your-server-ip>:9443/
You’ll see the SafeLine dashboard.
2. Add Your Website to Be Protected
In the dashboard:
- Go to Applications
- Add the IP or domain of your site (e.g.,
http://my-website.com) - Enable Protection Mode That’s it — SafeLine will now inspect all inbound traffic before it hits your real server.
3. Enjoy Real-Time Protection
SafeLine defends your website against:
- SQL Injection (SQLi)
- Cross-Site Scripting (XSS)
- Command & Code Injection
- CRLF, LDAP, XPath Injection
- Bot Scraping & Automated Crawlers
Attackers are blocked with a response page like this:
View Attack Logs & Analytics
You can view all intercepted requests in the Logs tab. For each attack, you’ll see:
- IP address of the attacker
- Type of attack (e.g., SQLi, XSS)
- Intercepted payload
- Timestamp and URL path
This helps you understand where threats are coming from — and whether further action is needed.
SafeLine by the Numbers
- 17.3K+ GitHub stars
- 300K+ installs
- Protects over 1 million websites
- Processes 30+ billion HTTP requests daily
Whether you're running a blog, portfolio site, or SaaS project — SafeLine gives you enterprise-grade WAF protection with zero cost and zero hassle.
Try It Now
- 🔸 GitHub: https://github.com/chaitin/SafeLine
- 🔸 Official Docs: https://docs.waf.chaitin.com/
- 🔸 Join the Community: SafeLine Discord
If you’ve been looking for a fast, free, and effective way to defend your site — SafeLine is absolutely worth a try.
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