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Hark vs Blck Alpaca

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Hark compared with Blck Alpaca
DetailHark logo HarkBlck Alpaca logo Blck Alpaca
What it doesA new kind of system for getting things done AI readiness check for websites: measures how well AI agents can access, understand and navigate your site
StageNot given Startup
FoundedNot given 2024
Based inNot given AT
Pricing modelFreemium Free
PricingFree plan available. hark pro² at $20/month with 2× more usage. hark pro³ at $100/month with 10× more usage. All features available in all plans; upgrading increases usage capacity. Not given
Key features
  • Persistent memory to tailor responses based on shared context
  • Computer use agent for browsing, research, and web tasks
  • End-to-end encryption for data security
  • Action Buttons for prioritized task completion
  • Email management and sorting
  • Flight booking and travel planning
  • Food ordering integration
  • Appointment booking and healthcare search
  • Expense auditing and savings recommendations
  • 28 automated checks across access, understanding, discoverability, EU transparency and usability
  • Static HTML analysis without JavaScript execution
  • AI crawler identifier testing with GPTBot, ChatGPT-User, ClaudeBot, PerplexityBot and Google-Extended
  • Rendered page analysis with JavaScript execution comparison
  • Observed agent task execution with logging
  • Five weighted scoring layers with consequence-based assessment
  • Letter grade result from A to F based on rubric version 1.1.3
  • Instant results with no registration required
  • Checks for robots.txt, sitemap, llms.txt and trust pages
  • Optional in-browser JavaScript rendering check
What makes it different
  • Operates its own secure computer with full browser for independent task execution
  • End-to-end encryption vault for sensitive data protection
  • User approval required before performing sensitive actions
  • All features available across free and paid tiers
  • Weighted scoring model that treats missing features as not applicable rather than failures, preventing unfair penalties
  • EU-focused transparency and privacy layer addressing GDPR and consent requirements specific to European compliance
  • Versioned rubric that allows results to remain comparable across time
  • Real agent task execution logging showing exactly where AI agents get stuck on your site
Community votes00
DR (Domain Rating by Ahrefs)69 +1 (up) since last check45 +1 (up) since last check
Trust Flow (Majestic)2415
Citation Flow (Majestic)4033
Referring domains (Majestic)1766268

4 details filled in for both companies.

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