Web accessibility is the inclusive practice of ensuring there are no barriers that prevent interaction with, or access to, websites on the World Wide Web by people with physical disabilities, situational disabilities, and socio-economic restrictions on bandwidth and speed. When sites are correctly designed, developed and edited, generally all users have equal access to information and functionality.

Web Content Accessibility Guidelines (WCAG) 2.0 covers a wide range of recommendations for making Web content more accessible. Following these guidelines will make content accessible to a wider range of people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, limited movement, speech disabilities, photo sensitivity and combinations of these. Following these guidelines will also often make your Web content more usable to users in general.

WCAG 2.0 success criteria are written as testable statements that are not technology-specific. Guidance about satisfying the success criteria in specific technologies, as well as general information about interpreting the success criteria, is provided in separate documents.
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Organizations can realize substantial return on investment (ROI) that offset any costs of implementing Web accessibility. In order to be willing to make the initial investment, many organizations need to understand the social, technical, and financial benefits of Web accessibility, and the expected returns. The justification to commit resources to a project is often called a "business case". Business cases usually document an analysis of a project's value in meeting the organization's objectives, the cost-benefit analysis, and the expected outcomes.
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This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or CSS stylesheets, MobileOK content, or to find broken links, there are other validators and tools available. As an alternative you can also try our non-DTD-based validator.
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The Disability Discrimination Act is an act passed by the Parliament of Australia in which prohibits discrimination against people with disabilities in employment, education, publicly available premises, provision of goods and services, accommodation, clubs and associations, and other contexts. Discrimination is defined to include failing to make reasonable adjustments for the person.
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Bruce Lindsay Maguire, a web user who has been blind from birth, who accesses the web by means of a refreshable braille display.

The HREOC's ruling set a precedent that creating a website intended for use by and to inform the general public, where such a website is more accessible to a sighted user than the same intent and information is not available for a user who is blind by virtue of disability. They are therefore being discriminated against by lack of provision, and the creator of the website is in breach of the Cth DDA.

The HREOC ruled that the respondent pay damages of $20,000 AUD to the plaintiff.
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The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.
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