Free Tool
Free Website Accessibility Scanner
Paste any URL and get an instant accessibility scan covering WCAG 2.1 AA, ADA, Section 508, and AODA violations. No account required — enter your email after the scan to unlock your full report.
What We Check
Automated WCAG 2.1 AA testing across your live pages.
Our scanner runs automated axe-core checks against your live website and returns violations grouped by rule, impact level, and affected page — with direct links to fix guidance for every issue found.
Color Contrast
Detects text and UI components that fail WCAG 2.1 AA contrast ratios — one of the most common and easily missed violations.
Keyboard Navigation
Checks that interactive elements are reachable and operable by keyboard alone, covering focus order, focus visibility, and keyboard traps.
Form Labels & ARIA
Validates that form inputs have programmatic labels, ARIA roles are applied correctly, and landmark regions are properly structured.
Image Alt Text
Flags images missing alt attributes and decorative images that should be hidden from assistive technology.
Document Structure
Checks heading hierarchy, page language, and document landmarks so screen readers can navigate your content efficiently.
Link & Button Names
Detects links and buttons with no accessible name — a frequent source of ADA lawsuit complaints in interactive UIs and checkout flows.
Your Report
What you get in the free scan.
The scan runs instantly and shows you a summary of violations. Enter your email to unlock the full report — no credit card, no demo call, no sales follow-up (unless you ask). Continuous monitoring requires a free account on diaphone.dev.
Every issue is rated Critical, Serious, Moderate, or Minor so you can prioritize fixes effectively.
The exact CSS selectors and HTML snippets for every failing element — no guessing where the problem is.
Each violation links to the relevant WCAG success criterion and a fix guide with remediation steps.
Results broken down by page so you know exactly which URLs have the highest violation count.
"Automated scanning catches roughly 30–40% of all WCAG issues. We'll show you exactly what we found and what automated tools can't catch. A clean scan result is not a compliance certification — it's a starting point." — The Diaphone honesty guarantee
One scan is a snapshot. Monitoring is a strategy.
Your site changes every time you deploy. Diaphone watches it continuously and alerts you the moment a new accessibility violation appears — before your users or a plaintiff's scanner does.
Start Monitoring Free on Diaphone →