Under the hood
Technology
VertaaUX combines a hierarchical AI agent system with novel algorithms to deliver accurate, actionable UX insights at scale.
Performance Benchmarks
117ms
Average audit time
25x faster than 3s target
0.04MB
Memory per audit
1,785x more efficient than target
<5%
False positive rate
2x better than 10% industry norm
91+ types
Issue coverage
Exceeded 80 target with 95% metadata
AI Agent Architecture
Our hierarchical agent system uses 15+ specialized AI agents orchestrated by a central coordinator.
Audit Orchestrator
Coordinates all domain agents and synthesizes results
Accessibility Agent
WCAG 2.2 compliance, ARIA validation, contrast analysis
Clarity Agent
Visual hierarchy, saliency mapping, CTA effectiveness
Usability Agent
Nielsen heuristics, cognitive load, interaction patterns
Conversion Agent
Funnel analysis, friction detection, optimization tips
IA Agent
Navigation complexity, information architecture assessment
Semantic Agent
HTML structure, heading hierarchy, landmark validation
Keyboard Agent
Tab order simulation, focus management, skip links
Novel Algorithms
Proprietary algorithms that go beyond traditional accessibility checkers.
Cognitive Load Estimator
Proprietary algorithm measuring mental effort required to process page content.
Saliency Mapping
AI-powered visual attention prediction that identifies what users see first.
CTA Quality Scorer
Multi-factor analysis of call-to-action effectiveness including contrast and placement.
Navigation Complexity Index
Quantifies how difficult it is for users to find what they need.
Probabilistic Issue Scoring
Severity-weighted scoring (errors -15, warnings -8, info -3).
Tech Stack
Frontend
- • Next.js 16 (App Router)
- • React 19 with Server Components
- • TypeScript (strict mode)
- • Tailwind CSS + shadcn/ui
Backend
- • Puppeteer for browser automation
- • Prisma ORM + PostgreSQL
- • Redis for queue management
- • Stripe for billing
Quality
- • 74/74 unit tests passing
- • 0 ESLint errors
- • 0 npm vulnerabilities
- • Playwright E2E tests
Security
- • OAuth 2.0 + JWT sessions
- • SAML SSO (enterprise)
- • TLS 1.3 + AES-256
- • DOMPurify XSS protection
Built by engineers, for teams
A small, talent-dense team obsessed with accuracy and speed.