Chrome Extension

D2i AccessScan

A powerful, privacy-first WCAG 2.1/2.2 accessibility auditor for Chrome. Instantly detect violations on any page or crawl an entire website — no external API calls, no data transmission, no account required.

Two Powerful Scan Modes

Single Page Scan

Instantly audit the currently open page using axe-core, the industry-standard accessibility engine. Results appear in seconds with a full severity breakdown — Critical, Serious, Moderate, and Minor — plus code-level remediation guidance.

Full Website Scan

A built-in BFS (breadth-first search) crawler discovers and scans pages across your entire website automatically — with a configurable page limit from 5 pages all the way to unlimited. Each page is opened, audited, and closed — giving you a complete site-wide accessibility picture with zero manual effort.

Screenshots

See D2i AccessScan in action — from the popup summary to the full website report.

D2i AccessScan popup showing the pre-scan screen with 'This Page' mode selected and the 'Scan This Page' button ready to audit d2itechnology.com
Step 1: Choose "Scan This Page" to audit the current page
D2i AccessScan popup displaying scan results: 0 Critical, 0 Serious, 1 Moderate, 0 Minor violations, 51 passed, 19 incomplete, with a View Full Report button
Step 2: Review categorised results directly in the popup
D2i AccessScan full report page showing 1 total violation, an 80% accessibility score, severity filters, a detailed violation description for landmark structure, and JSON, HTML, PDF, and Copy Summary export buttons
Step 3: Full report with severity filters, violation details, and export options
D2i AccessScan settings panel showing WCAG Conformance Level set to WCAG 2.1 AA, Best Practices and Section 508 rule sets both enabled, and Website Scan Page Limit set to Unlimited
Configure your audit — WCAG level, rule sets, and page limit

Key Features

Everything you need for thorough WCAG auditing — built right into your browser.

WCAG 2.1 & 2.2 Coverage

Level A, AA, and AAA checks powered by axe-core — the industry-standard engine.

ADA & Section 508

Built-in compliance checks for ADA Title II/III and U.S. federal Section 508 requirements.

Severity Breakdown

Violations ranked as Critical, Serious, Moderate, and Minor — prioritise your remediation effort.

Code-Level Guidance

See the exact failing element and a clear explanation of how to fix it — no guesswork.

Element Highlighting

Click any violation to visually locate the offending element on the live page — highlighted with a red outline.

Cancel & Partial Results

Stop long website scans at any time. All pages already scanned are saved and displayed as a partial result.

Scan History

Last 10 scans listed with status badges — Pass, Issues Found, In Progress, Terminated — all clickable to reopen reports.

Best Practice Rules

Non-WCAG axe rules that meaningfully improve UX — catch issues before they become violations.

100% Private

Runs entirely in your browser. No data is ever sent to any external server — no telemetry, no monitoring.

Export — Single Page

  • JSON

    Raw axe-core results — ideal for CI/CD pipelines and programmatic processing.

  • HTML

    Standalone styled report file, shareable without the extension installed.

  • PDF

    Print-optimised via the browser dialog — all violations expanded for a complete audit record.

  • Copy Summary

    Plain-text summary copied to clipboard — paste directly into tickets or emails.

Export — Full Website

  • CSV

    All scanned pages with URL, page title, and violation counts by severity.

  • Sitemap XML

    Standard W3C sitemap (<urlset>) containing all scanned page URLs.

  • JSON

    Full aggregated scan data across all pages — suitable for tooling and reporting pipelines.

  • PDF

    Print the complete website report for offline review or client delivery.

Privacy & Performance

No external requests — axe-core is bundled locally and injected only on demand. There is no background activity and no page monitoring.

No data transmission — audit results are stored in chrome.storage.local on your own device. Nothing leaves your browser.

No telemetry or analytics — zero tracking, no usage data collected, no account required.

On-demand injection — axe-core is injected only when you trigger a scan, keeping runtime footprint minimal on every page you visit.

Configurable Settings

WCAG Level

A, AA (default — recommended for ADA and EU EAA), or AAA.

Best Practices

Toggle non-WCAG axe rules on or off (on by default).

Section 508

U.S. federal compliance rules — toggle on when auditing government or federal contractor sites.

Page Limit

5 / 10 / 20 / 50 / 100 / 250 / 500 / 1,000 / Unlimited pages per website scan.

Who Is This For?

  • Web Developers

    Check pages during development — catch violations before they reach production.

  • QA Teams

    Run accessibility regression checks as part of your standard QA workflow.

  • Accessibility Consultants

    Audit client websites quickly and export professional reports in multiple formats.

  • Compliance Officers

    Verify ADA, Section 508, and EU EAA conformance across your organisation's web properties.

  • Designers

    Review contrast, labels, and focus order on designs before handoff to engineering.

Start Auditing in Seconds

Install D2i AccessScan from the Chrome Web Store — free, no account, no data sent anywhere.

Add to Chrome — Free

Frequently Asked Questions