Black SEO Analyzer
Black SEO Analyzer is an enterprise-grade, Rust-built SEO analysis suite offering both CLI and GUI, hybrid crawling for static sites and SPAs via headless Chrome, and 300+ checks spanning technical SE
What is Black SEO Analyzer?
Black SEO Analyzer is an SEO audit tool built in Rust that scans websites for technical and content-related issues. It works as both a command-line tool and desktop application, and can crawl traditional websites as well as single-page applications using headless Chrome. The tool runs over 300 checks covering technical SEO, page speed, Web Vitals, accessibility, security, links, and Schema.org validation. It integrates with AI models from Anthropic, OpenAI, DeepSeek, and Google to generate insights about your site's performance. Reports can be exported in multiple formats including HTML, JSON, XML, and CSV, making it useful for sharing results with clients or teams. Because it's a one-time purchase with source code access, it suits agencies, developers, and enterprises who want to own their tools rather than rely on subscriptions.
Key Features
Hybrid crawling
handles both static websites and single-page applications via headless Chrome
300+ SEO checks
covers technical SEO, content quality, performance, Web Vitals, accessibility, security, links, and structured data validation
Dual interface
available as both command-line tool and graphical application for different workflows
AI-powered insights
integrations with Claude, GPT, DeepSeek, and Gemini (bring your own API keys) to analyse results
Multi-format reporting
exports to JSON, JSONL, XML, CSV, and branded HTML reports
One-time purchase
includes source code access with no ongoing subscription fees
Pros & Cons
Advantages
- thorough crawling capability for both traditional and modern JavaScript-heavy websites
- No recurring costs; source code access means you can modify and host it yourself
- Flexible AI integration; use whichever model you prefer or have access to
- Automation-ready outputs make it easy to integrate into workflows and CI/CD pipelines
- Covers accessibility and security alongside traditional SEO, giving a full picture of site health
Limitations
- Requires technical knowledge to set up and run effectively, particularly the CLI version
- AI integration requires separate API keys and accounts with third-party services, adding complexity
- Learning curve steeper than typical SaaS tools due to the number of options and customisation possibilities
Use Cases
Agencies auditing client websites and generating reports to share with stakeholders
Developers integrating SEO checks into automated testing pipelines or deployment workflows
Enterprises with strict data governance requirements who need to host and control analysis tools themselves
Website owners performing detailed technical SEO audits on single-page applications
Teams automating bulk site audits across multiple properties and tracking changes over time