Free Software
FREEWebmaster Domain Toolkit
9 Essential Analysis Tools in One Desktop App
A cross-platform desktop application that brings together 9 essential analysis tools in one cohesive interface, complete with AI-generated prompts to help you troubleshoot and fix issues.
As a webmaster or developer, you know the drill: checking DNS records in one tool, SSL certificates in another, running separate tests for security headers, SEO, and performance. It's tedious, time-consuming, and scattered across dozens of browser tabs.
Webmaster Domain Toolkit changes that. All 9 tools are accessible via a sleek tab bar, letting you switch between analyses instantly. No more juggling browser windows or remembering different website URLs.
Download Webmaster Domain Toolkit
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All 9 Tools at Your Fingertips
Each tool is accessible via a sleek tab bar, letting you switch between analyses instantly.
DNS Health Checker
Analyze A, AAAA, MX, TXT, NS, and CNAME records. Validates SPF and DMARC email security configurations.
SSL Certificate Analyzer
Inspect certificates, protocols, cipher suites, and detect vulnerabilities. Get a security grade from A+ to F.
Security Headers Analyzer
Evaluate CSP, HSTS, X-Frame-Options, and other critical HTTP security headers.
Web Vitals Auditor
Measure Core Web Vitals (LCP, FID, CLS) and performance metrics using Google PageSpeed Insights.
SEO Meta Validator
Validate meta tags, heading hierarchy, Schema.org markup, Open Graph, and Twitter Cards.
API Security Tester
Test REST and GraphQL endpoints for CORS issues, authentication problems, and security misconfigurations.
Mixed Content Scanner
Identify HTTP resources loaded on HTTPS pages that could trigger browser warnings.
Technology Stack Detector
Discover frameworks, servers, CDN providers, analytics tools, and CMS platforms in use.
Accessibility Checker
Evaluate WCAG 2.1 compliance and identify accessibility issues affecting users.
Instant Health Scores
Every scan generates a clear 0-100 health score with a letter grade (A+ through F). Quickly understand the state of your domain at a glance, then drill down into specific issues.
Score: 100/100 - Excellent
Your domain is perfectly configured. SPF, DMARC (with reject policy), and MX records all properly set up.
Score: 10/100 - Critical Issues
Missing CSP and HSTS headers. Grade capped at B maximum until these critical security headers are added.
How Scoring Works
Each tool uses domain-specific scoring criteria. For example, the DNS Health Checker deducts points for:
- Missing SPF record (-20 points)
- Missing DMARC record (-30 points)
- DMARC policy set to "none" (-10 points)
- Missing MX records (-20 points)
- Missing A record (-10 points)
AI-Powered Troubleshooting
Here's where Webmaster Domain Toolkit really shines. After every scan, you can generate a detailed AI prompt that summarizes your findings and asks the right questions.
Example Generated Prompt (Security Headers)
I have a security headers analysis for "https://example.com".
Overall Score: 10/100 (Grade: F)
Note: Grade capped at B due to Missing CSP and HSTS headers
## Headers Present:
- **Server** ✓
Value: `cloudflare`
## Missing Headers:
- Strict-Transport-Security (HSTS) (25 points)
- Content-Security-Policy (CSP) (25 points)
- X-Content-Type-Options (10 points)
- X-Frame-Options (15 points)
- Referrer-Policy (5 points)
Can you provide the specific headers I should add to fix these issues? Copy this prompt into ChatGPT, Claude, or any AI assistant, and get specific, actionable recommendations tailored to your exact configuration.
Tools in Action
Here's a closer look at some of the specialized analyzers that make Webmaster Domain Toolkit indispensable for web professionals.






Key Features
- 9 comprehensive analysis tools covering DNS, SSL, security, SEO, performance, and accessibility
- Unified health scoring with 0-100 scale and letter grades across all tools
- AI prompt generation for every scan to accelerate troubleshooting
- Modern, elegant UI that's both beautiful and functional
- Cross-platform support for macOS, Windows, and Linux
- Keyboard shortcuts for fast navigation (Cmd+1 through Cmd+9)
- No cloud dependency - your scans run locally for privacy
- Extensible architecture ready for future tools
Who Is This For?
Webmaster Domain Toolkit is built for:
Web Developers who need to quickly diagnose DNS and SSL issues
SEO Professionals validating metadata and structured data
Security Engineers auditing security headers and configurations
DevOps Teams troubleshooting deployment and infrastructure issues
Freelancers managing multiple client websites
Anyone who's tired of bouncing between a dozen different web tools
System Requirements
- macOS (Intel): macOS 10.14 (Mojave) or later
- Disk Space: ~50 MB
- Internet: Required for domain analysis
Changelog
Version 1.0.0 - Initial Release
- DNS Health Analyzer with comprehensive record checking
- SSL Certificate Analyzer with security grading
- Security Header Scanner with recommendations
- SEO Analyzer for meta tags and Open Graph
- Tech Stack Detector for server technologies
- API Endpoint Tester with authentication support
- Website Performance Analytics
- AI-Powered Prompt Generation
- Multi-domain tabbed interface
What's Next?
We're actively developing new features including:
- Scan history with comparison over time
- PDF report export for client deliverables
- Batch scanning for multiple domains
- Custom alert thresholds
- API integration for CI/CD pipelines
Have suggestions? We'd love to hear from you. This tool was built to solve real problems that webmasters face every day, and your feedback shapes our roadmap.
Get Started Today
Download Webmaster Domain Toolkit and consolidate your domain analysis workflow into one powerful desktop application.
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