PageAudit

Is clinicaltrials.gov Accessible?

0Needs Work

clinicaltrials.gov scored 88/100 on Accessibility (WCAG 2.2).

3 serious5 moderate

Last scanned May 15, 2026

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Top Accessibility Issues

serious

Elements must meet minimum color contrast ratio thresholds

Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds

serious

Interactive controls must not be nested

Ensure interactive controls are not nested as they are not always announced by screen readers or can cause focus problems for assistive technologies

serious

<svg> elements with an img role must have alternative text

Ensure <svg> elements with an img, graphics-document or graphics-symbol role have accessible text

moderate

Document should not have more than one banner landmark

Ensure the document has at most one banner landmark

moderate

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination

Ensure landmarks are unique

moderate

All page content should be contained by landmarks

Ensure all page content is contained by landmarks

moderate

All page content should be contained by landmarks

Ensure all page content is contained by landmarks

moderate

All page content should be contained by landmarks

Ensure all page content is contained by landmarks

Why Accessibility Compliance Matters

95.9% of the top one million websites fail WCAG 2.2 compliance. In 2024, over 4,000 ADA lawsuits were filed with settlements averaging $35,000. Government websites face additional risk under DOJ Title II regulations with deadlines in 2026 and 2027.

Checking accessibility for clinicaltrials.gov, and any website you manage, is the first step toward avoiding legal action and making the web accessible to everyone.

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Frequently Asked Questions

Is clinicaltrials.gov accessible?
Based on our most recent scan, clinicaltrials.gov scored 88/100 on WCAG 2.2 accessibility standards. There are accessibility issues that should be addressed to reduce legal risk.
What does this accessibility check test for?
Our scanner uses axe-core, the same engine trusted by Microsoft, Google, and the U.S. government, to test against WCAG 2.2 AA and AAA standards. It checks color contrast, alt text, form labels, keyboard navigation, ARIA attributes, heading structure, and dozens more rules.
How often should I check accessibility?
Website content changes frequently, and each update can introduce new accessibility issues. We recommend scanning after every major update, or setting up automated weekly monitoring with a PageAuditors paid plan.
What happens if a website isn't ADA compliant?
Non-compliant websites face real legal risk. Over 4,000 ADA web accessibility lawsuits were filed in 2024, with an average settlement of $35,000. Government websites face additional enforcement under DOJ Title II rules with deadlines in 2026 and 2027.