Accessibility Score Checker
Fast, secure, client-side utility running entirely in your browser with zero server dependencies.
Accessibility Score Checker
Quantify your website accessibility posture with an algorithmic 0–100 health grade weighted by WCAG violation severity and user impact.
Accessibility Defect & Weighting Model
Enter the number of accessibility defects identified across automated audits and manual testing to compute a standardized enterprise A11y Health Score.
Accessibility Score Checker - Weighted A11y Health & Compliance Grade: Generate a 0-100 digital accessibility score and audit health rating for web components, templates, and UI frameworks. 100% free and private browser utility.
How to Use the Accessibility Score Checker
Input Automated Defect Counts
Enter the number of Critical, Serious, Moderate, and Minor accessibility defects identified by automated test runners or browser audits.
Include Manual Keyboard Navigation Audit
Rate keyboard operability based on hands-on testing (checking for visible focus rings, logical tab order, and zero keyboard traps).
Factor in Screen Reader Usability
Assess screen reader behavior with VoiceOver, NVDA, or JAWS to account for dynamic state announcements and landmark navigation.
Review Composite Score & Legal Exposure
Analyze your 0–100 accessibility health grade and corresponding ADA/EAA legal risk assessment to prioritize development sprints.
Comprehensive Guide: Accessibility Score Checker
Digital accessibility is often measured in isolated defect lists, but engineering managers, product owners, and legal counsel require a unified, quantifiable metric to track accessibility progress across software releases. An Accessibility Health Score consolidates dozens of disparate automated scan results and manual testing observations into an actionable 0–100 benchmark.
Defect weighting is essential for realistic accessibility scoring. Not all WCAG violations have equal user impact. A missing `alt` attribute on an informative e-commerce checkout button (Critical) completely prevents a blind customer from completing a purchase, whereas an ambiguous heading hierarchy (Moderate) or redundant "image of" phrase (Minor) creates cognitive friction without entirely blocking task completion. S-tier accessibility models assign exponential weight penalties to critical barriers.
Automated testing alone can never produce a reliable accessibility score. Industry studies consistently show that automated scanners catch at most 30% to 57% of WCAG success criteria. A website can achieve a "100%" automated score while remaining completely unusable if interactive custom dropdown menus trap keyboard focus or if screen readers are bombarded with unannounced dynamic content changes. A rigorous accessibility health score blends automated scan metrics with manual keyboard and screen reader audits.
Maintaining an accessibility score above 85 to 90 significantly reduces corporate legal liability. Thousands of digital accessibility lawsuits are filed annually under Title III of the Americans with Disabilities Act. Courts and plaintiff attorneys scrutinize digital interfaces for recurring, systematic barriers. Establishing a formal accessibility scoring process demonstrates corporate good-faith efforts and proactive remediation, supporting defensible VPAT documentation.
Key Features & Capabilities
Algorithmic 0–100 Grading
Translates raw bug tallies into clear letter grades (A+ to F) for sprint planning and executive reporting.
Severity-Weighted Penalties
Applies realistic industry weights (Critical: 20 pts, Serious: 10 pts, Moderate: 4 pts, Minor: 1 pt).
Automated + Manual Synthesis
Blends automated static scans with hands-on keyboard and screen reader testing observations.
ADA Legal Risk Assessment
Estimates corporate exposure to ADA Title III, Section 508, and European Accessibility Act enforcement.
Critical Defect Capping Rule
Automatically caps scores at 65 if critical blocking barriers exist, preventing misleadingly high ratings.
Continuous Tracking Benchmark
Provides a repeatable metric to measure sprint-over-sprint accessibility gains in agile development.
Frequently Asked Questions
A score of 90 or above represents an A+ to A grade indicating strong WCAG 2.2 Level AA compliance with zero critical barriers. A score between 80 and 89 (B grade) indicates solid compliance with minor defects. Scores below 70 indicate substantial non-compliance that poses high legal risk under the ADA and EAA.
A critical defect—such as an inescapable keyboard trap or an unlabelled primary checkout button—completely halts disabled users from using the site, regardless of how cleanly the rest of the pages are written. Capping the score at 65 ensures teams address blocker bugs before celebrating passing scores.
A Critical defect completely blocks a user from completing a core workflow with no available workaround (e.g. keyboard trap, invisible submit button). A Serious defect creates a major barrier or significant confusion, but a persistent user might eventually navigate around it (e.g. poor color contrast on secondary links, ambiguous headings).
Best practice is to recalculate your accessibility score at the conclusion of every agile sprint or major release milestone. Integrating automated checks into CI/CD pipelines ensures defects are flagged before code reaches staging.
Yes. Demonstrating a structured accessibility scoring framework provides transparent, verifiable documentation that your organization actively monitors, prioritizes, and remediates digital accessibility barriers.