Pay-as-you-go API model: API credit top-ups from $5, $20 or $100. Link Network subscription: $49/month or $470/year. Force indexing uses separate URL credits with quote-based pricing.
Key features
100+ automated checks across 8 categories
Mobile and desktop Lighthouse audits
Security header analysis including CSP, HSTS, X-Frame
SSL certificate chain and expiry monitoring
Core Web Vitals measurement
Technology stack detection
Accessibility audit with screenshot contrast analysis
PDF, JSON, and Markdown export
Permanent public report URLs
Free tools including DNS lookup, SSL checker, and redirect tracer
Live Google and Bing search results
Keyword search volume and CPC data
Backlink and referring domain analysis
Google rank tracking for keywords
On-page and technical SEO audits
Google Maps rankings
AI visibility tracking
Free Google Search Console integration
OAuth and API key authentication
Integration with Claude, Cursor and ChatGPT
What makes it different
Truly free with no account, credit card, or subscription required
Comprehensive 8-category scoring system in addition to Lighthouse
Globally distributed workers to test from multiple regions
Permanent public URLs allow reports to be shared and compared over time
Fast and lightweight, built with Go and Alpine.js
Pay-as-you-go pricing with no subscription required
Direct integration with AI agents like Claude and ChatGPT
Free Google Search Console and Bing data access
Live real-time SEO data instead of estimates
Multiple MCP servers and REST API with same pricing
BeaverCheck
CrakSEO