👨‍💻 About ComputerBas

Who is ComputerBas?

I'm not a professional web developer or teacher, but I'm learning fast with the help of A.I. My main mission is to share all the necessary information needed to secure websites and connections. I believe every website deserves to be secure, and I want to give everyone the tools and knowledge to achieve this.

🎯 Expertise

• Website Security Testing - Developed and using SecurityHeaders.nl & CheckTLS.nl
• Email Security Testing - CheckTLS.com & LearnDMARC.com for SPF, DKIM, DMARC validation
• Perfect Security Scores - Achieved 100% A+ on Internet.nl, SSL Labs, Mozilla Observatory
• Security Implementation - Comprehensive guides for server hardening and configuration
• AI-Assisted Learning - Continuous development with modern AI tools
• Modern Web Standards - CSP, HSTS, security headers, TLS best practices

🎯 Main Mission

My focus is on two essential websites that help everyone improve their online security:

🔒 SecurityHeaders.nl

Test your HTTP security headers and receive an instant score (A++ to F). Checks: Content-Security-Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. Provides concrete recommendations for each missing or misconfigured header.

• 🔍 securityheaders.nl

🔐 CheckTLS.nl

Advanced TLS/SSL scanner powered by testssl.sh. Tests your website for: supported TLS protocols (1.0, 1.1, 1.2, 1.3), cipher suites, certificate validity and chain, known vulnerabilities (Heartbleed, POODLE, BEAST, etc.), perfect forward secrecy, and SSL/TLS best practices.

• 🔍 checktls.nl

📚 Implementation Guides

To achieve these security goals, I have written comprehensive manuals that provide all the necessary knowledge:

• 📖 Debian 12 server setup with complete security hardening
• 📖 SSH configuration and secure remote access
• 📖 SSL/TLS certificates and HTTPS implementation
• 📖 HTTP Security Headers configuration (CSP, HSTS, etc.)
• 📖 Postfix mail server with SPF, DKIM, DMARC
• 📖 Firewall configuration and network security
• ➡️ And many more available in the documentatie sectie

💡 Inspired by the best

These tools were developed with inspiration from leading security platforms:

• ✅ SecurityHeaders.com - The pioneer in HTTP security header scanning
• ✅ SSL Labs (ssllabs.com) - The gold standard for SSL/TLS testing
• ✅ Mozilla Observatory (observatory.mozilla.org) - Comprehensive website security scans
• ✅ ImmuniWeb (immuniweb.com) - Professional security testing
• ✅ Internet.nl - Dutch standard for website security and modern internet standards

🌐 Websites & Projects

ComputerBas.nl

The central hub for IT documentation, tutorials, and tools. Features:

• Comprehensive server administration guides
• Security best practices and implementation guides
• Desktop-style UI with modern features
• 100% scores on all security tests (Internet.nl, SSL Labs, Mozilla Observatory)

Antigravity AI

Antigravity AI Agent Guide - An advanced guide for AI-driven development:

• Integration of Google DeepMind's agentic capabilities
• Best practices for AI-assisted coding
• Workflow optimization and prompt engineering

CheckTLS.nl

An advanced TLS/SSL security checker investigating websites for:

• SSL/TLS configuration and cipher suites
• Certificate validity and chain
• Protocol support and vulnerabilities
• Powered by testssl.sh

SecurityHeaders.nl

Analyzes HTTP security headers and provides recommendations for:

• Content Security Policy (CSP)
• HSTS implementation
• X-Frame-Options, X-Content-Type-Options
• Referrer Policy and Permissions Policy

UltimateParts.nl

Hardware recommendations and best buys for PC builds with:

• Dynamic pricing from Tweakers.net
• Categories: CPU, GPU, Motherboards, RAM, SSDs
• Tier-based recommendations (Budget, Midrange, High-End)

TestLab.ComputerBas.nl

Experimental projects and fun applications:

• Snake Game - Classic snake game implementation
• Test implementations and proof-of-concepts
• Experimental features and demos

🛠️ Tools & Software

Open-source tools developed by ComputerBas:

• Cleanup 11 - Windows 11 cleanup utility
• Debloat 11 - Removes bloatware from Windows 11
• Service Control - Manage Windows services
• WiFi Password - Recover saved WiFi passwords
• CSI Installer - Custom Software Installer tool

More tools available on GitHub.

📚 Documentation

Comprehensive manuals available for:

• Debian 12 server setup and configuration
• SSH & RDP remote access
• SFTP file transfer setup
• Postfix mail server configuration
• Active Directory & RRAS
• VPN implementation
• Hyper-V virtualization
• GPU passthrough for VMs

All documentation available at /docs/

🏆 Achievements

• ✅ Internet.nl 100% - Full compliance with Dutch internet standards
• ✅ SSL Labs A+ - Perfect SSL/TLS configuration
• ✅ Mozilla Observatory A+ - Excellent security implementation
• ✅ SecurityHeaders A++ - Optimal HTTP security headers
• ✅ CryptCheck A+ - Strong cryptographic configuration
• ✅ Immuniweb A+ - Comprehensive web security
• ✅ HSTS Preload - Included in browser HSTS preload lists
• ✅ Valid CSS - W3C validated stylesheets

💡 Philosophy

"Every website deserves to be secure. My mission is to share the tools and knowledge needed to make this possible for everyone."

ComputerBas believes in:

• Security First - Implement security from day one
• Open Source - Share knowledge and code with the community
• Continuous Learning - Stay up-to-date with new technologies
• Best Practices - Follow industry standards and guidelines
• User Privacy - Respect user privacy and data

📞 Connect

Find ComputerBas online:

• 🌐 Website: www.computerbas.nl
• 💼 LinkedIn: linkedin.com/in/computerbas
• 🐙 GitHub: github.com/bashouse
• 👥 Facebook: facebook.com/computerbas