Legal ADA Compliance with Self-Hosted Axe-Core & Mobile QA
Digital accessibility is a legal safeguard and a foundational quality signal. BugViso runs the self-hosted axe-core engine to triage WCAG 2.1 and 2.2 AA violations with exact CSS selectors, paired with authentic iPhone 16 Pro pixel-device mobile emulation.
Experience the Accessibility & Mobile Engine Live
Test the live parameters and see how BugViso surfaces critical technical insights that legacy scrapers miss.
Impact-Ranked Accessibility Triage
Filtered with official Deque axe-core rule IDs and exact DOM selectors.
Button has no accessible name. Screen readers announce "Button" with zero context.
Remediation: Add aria-label="Delete document" or visible descriptive text.
Text contrast ratio is 2.8:1 (expected minimum 4.5:1). Foreground #94a3b8 on Background #ffffff.
Remediation: Darken text color to #475569 to achieve a compliant 5.2:1 contrast ratio.
Interactive target is 22px × 18px (minimum recommended 48px × 48px). Causes tap collisions on mobile.
Remediation: Increase padding to py-2.5 px-3 to provide adequate finger clearance.
Image element is missing an alt attribute.
Remediation: Add alt="Sarah Jenkins, Product Director" or aria-hidden="true" if decorative.
4 Pillars of BugViso Accessibility & Mobile
Every audit evaluates these core technical factors with zero false positives.
Self-Hosted Axe-Core WCAG 2.1/2.2 AA Engine
Integrated accessibility engine from Deque Systems providing deterministic auditing with zero false positives.
- Color Contrast Verification: Enforces minimum 4.5:1 contrast for regular text and 3:1 for large display typography.
- Screen-Reader Labeling: Identifies missing image alt attributes, unlabelled buttons, and improper aria-hidden tags.
- Accessible Form Controls: Validates input labels, fieldsets, and error associations via aria-describedby.
- Semantic Landmark Structure: Audits document landmarks (<main>, <nav>, <header>), language attributes, and heading hierarchy.
Impact-Ranked Violation Triage & CSS Selectors
Developer-first remediation interface providing exact element locations and official compliance documentation.
- Exact CSS Selector Path: Provides the full DOM query path leading straight to the non-compliant HTML element.
- Computed Contrast Math: Displays actual computed foreground and background hex values alongside required ratios.
- Code Remediation Guides: Generates copyable HTML snippet fixes tailored to each specific violation.
- Deque University References: Direct hyperlinks to official technical remediation documentation per axe-core rule ID.
Real Pixel Device Mobile Viewport Emulation
True mobile hardware simulation that evaluates responsiveness, touch ergonomics, and layout stability.
- Viewport Meta Validation: Validates width=device-width, initial-scale=1 and disables restrictive user-scaling blocks.
- Horizontal Overflow Radar: Detects oversized containers causing horizontal scrollbar defects on 390px mobile screens.
- Font Legibility Audit: Flags text rendered under 12px that forces mobile users to pinch and zoom.
- Touch Event Responsiveness: Tests mobile navigation drawers, hamburger menus, and viewport resize stability.
Tap Target Spacing & Touch Collision QA
Touch ergonomics engine verifying that all interactive elements meet ergonomic finger-tap tolerances.
- Bounding Box Geometry: Calculates physical dimensions of all interactive buttons, links, and form inputs.
- Minimum 48x48px Target: Enforces mobile touch guidelines to eliminate accidental mis-taps.
- Collision Distance Detection: Flags interactive targets positioned closer than 8px apart in dense mobile layouts.
- Virtual Keyboard Ergonomics: Validates mobile input types (inputmode="email", "numeric") for seamless form completion.
WCAG 2.1 AA Accessible Action Button & Contrast Fix
Issue: Icon-only action buttons without accessible labels fail screen-readers, while low-contrast text violates ADA and WCAG 2.1 AA legal standards.
<!-- WCAG 2.1 AA Compliant: High contrast (4.5:1+) & accessible screen-reader name -->
<button
type="button"
onClick={handleDelete}
aria-label="Delete report"
className="inline-flex items-center gap-2 rounded-xl bg-slate-900 px-4 py-2 text-sm font-semibold text-white transition-colors hover:bg-slate-800 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-violet-600"
>
<TrashIcon className="h-4 w-4 text-slate-300" aria-hidden="true" />
<span>Delete</span>
</button>BugViso vs. Competitors: Accessibility & Mobile
| Technical Capability | BugViso Modern Engine | Legacy Scrapers (2012-2022) | Why It Matters For Business |
|---|---|---|---|
| Integrated axe-core Engine | YES (Official Deque axe-core with impact ranking) | NO (Superficial image alt text checks only) | Provides legal-grade ADA and WCAG 2.1 AA compliance audits. |
| Exact DOM Selectors & Contrast Math | YES (Exact CSS selector + hex code contrast ratio) | NO (Vague pass/fail letter grade without element selectors) | Enables engineers to fix the issue in minutes without guesswork. |
| Physical Device Mobile Emulation | YES (Real iPhone & Pixel touch and pixel ratio simulation) | Partial (Resized desktop window only) | Catches real mobile tap collisions and viewport overflow bugs. |
| Cost per Client Accessibility Report | $1.49 / audit | $39 to $199 / mo recurring subscriptions | Perfect for freelance web developers delivering client audit deliverables. |
Enterprise Benchmarks for Accessibility & Mobile
The exact thresholds BugViso uses to grade your site performance and authority.
Zero missing form labels, button names, or document language tags.
Guarantees readability for visually impaired and low-vision users.
Eliminates mis-taps on mobile touchscreen devices.
Ensures seamless responsive experience across all screen sizes.
Technical Details & Common Questions on Accessibility & Mobile
Enterprise Security & Privacy Compliance
Strict Transport Security, Zero-Trust CSP & GDPR/CCPA Tracker Audits
Developer Visual & Code QA
React Hydration Error Hunter, OpenCV SSIM & Runtime Exception Debugger
Ready to inspect your site with BugViso?
Run a full multi-engine audit on your domain right now. 1 free full report lifetime, zero recurring subscription required.