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Accessibility Statement

Last Updated: January 15, 2026

Commitment to Accessibility​

Gasnet.org is committed to ensuring digital accessibility for people with disabilities. We continually improve the user experience for everyone and apply the relevant accessibility standards.

Target Conformance Level​

We aim to achieve WCAG 2.1 Level AA conformance as specified by the World Wide Web Consortium (W3C). This site is designed to be compatible with assistive technologies including:

  • Screen readers (JAWS, NVDA, VoiceOver, TalkBack)
  • Screen magnification software
  • Speech recognition software
  • Alternative input devices

Accessibility Features​

1. Color and Contrast​

  • All text meets or exceeds WCAG AA contrast requirements (4.5:1 for normal text, 3:1 for large text)
  • Color is not used as the only means of conveying information
  • Full support for light and dark color modes with maintained contrast ratios

2. Keyboard Navigation​

  • All interactive elements are keyboard accessible
  • Visible focus indicators on all interactive elements
  • Logical tab order throughout the site
  • Skip links provided to jump directly to main content
  • No keyboard traps

3. Screen Reader Support​

  • Semantic HTML structure with proper heading hierarchy
  • ARIA labels on interactive elements without visible labels
  • Chart components include text descriptions for data visualization
  • Form inputs have associated labels
  • Tables include proper headers

4. Responsive Design​

  • Content is readable and functional at all viewport sizes
  • Text can be zoomed up to 200% without loss of functionality
  • Touch targets meet minimum size requirements (44x44 pixels)

5. Motion Preferences​

  • Respects prefers-reduced-motion setting
  • Animations can be disabled for users who prefer reduced motion

6. Alternative Text​

  • All images include descriptive alt text
  • Decorative images are marked to be ignored by screen readers

Known Limitations​

Third-Party Components​

This site uses third-party services that may have accessibility limitations:

  1. Giscus Comments - Powered by GitHub Discussions. While we've added ARIA labels, the underlying widget's accessibility depends on the service provider.

  2. Local Search - Search functionality is provided by a third-party plugin. We continuously work to improve its accessibility.

Mathematical Content​

Mathematical equations are rendered using KaTeX. While KaTeX has good accessibility support, complex equations may be challenging for some screen reader configurations. We are exploring alternatives to improve this experience.

Charts and Data Visualization​

Interactive charts use Chart.js. We provide text descriptions, but the interactive visualizations may be challenging for some users. We are working on providing alternative data table views.

Technical Approach​

Our accessibility implementation includes:

  • Skip Links: CSS-hidden "skip to main content" links that appear on focus
  • Focus Management: Clear focus indicators using :focus-visible pseudo-class
  • ARIA Attributes: Proper use of role, aria-label, aria-live, and other ARIA attributes
  • Semantic HTML: Proper use of landmark roles (<nav>, <main>, <article>, etc.)
  • Color Contrast: Regular auditing of color combinations for WCAG AA compliance

Testing​

We regularly test this site using:

  • Automated accessibility testing tools
  • Keyboard-only navigation
  • Screen reader testing (VoiceOver on macOS, NVDA on Windows)
  • Browser developer tools accessibility inspections
  • Color contrast analyzers

Reporting Accessibility Issues​

We are committed to addressing accessibility issues promptly.

How to Report​

If you encounter an accessibility barrier on this site, please:

  1. Email us: accessibility@gasnet.org
  2. Open an Issue: GitHub Issues

When reporting, please include:

  • The page or section where you encountered the barrier
  • The assistive technology or browser you were using
  • A description of the issue

Response Time​

We aim to acknowledge accessibility reports within 2 business days and provide a resolution plan within 5 business days.

Ongoing Efforts​

Accessibility is an ongoing process. We regularly:

  • Audit new content and features for accessibility
  • Update this statement as improvements are made
  • Train contributors on accessibility best practices
  • Monitor evolving WCAG guidelines and standards

External Resources​

For more information about web accessibility:

This accessibility statement was last reviewed on January 15, 2026.

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