A11y means accessibility. The “11” represents the eleven letters between the “a” and the “y” in “accessibility.” In web design and development, accessibility means making websites and digital tools usable by people with disabilities—so they can perceive, understand, navigate, interact with, and contribute to the web.
What does the “11” in A11y stand for?
A11y is a numeronym: it keeps the first and last letters of “accessibility” and replaces the eleven letters between them with the number 11. It is pronounced as the word “accessibility,” not as a separate technical standard.
What does web accessibility mean?
Web accessibility is the practice of designing and building websites, applications, and other web technologies so people with disabilities can use them. It covers more than whether a page looks clear: people need to be able to perceive information, understand it, move through an interface, operate its controls, and take part in online activities.
Accessibility applies across a wide range of needs, including auditory, cognitive, neurological, physical, speech, and visual disabilities. It is not only about blindness or screen readers. Accessible design can also help people without disabilities—for example, someone using a small-screen device or an older person experiencing a change in ability.
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What does accessibility look like on a website?
Accessibility involves content, design, code, and interaction. Examples include:
- Providing meaningful text alternatives for informative images, so their essential information is available in another form.
- Giving buttons and other controls useful accessible names, so people can identify their purpose with assistive technology.
- Not using color as the only way to communicate meaning; pair color differences with text, symbols, or another cue.
- Using sufficient contrast between foreground text or controls and their backgrounds.
- Allowing text to be resized and content to reflow without losing information or functionality.
- Making controls operable with a keyboard, not only with a mouse or touch gesture.
These examples illustrate accessibility work; completing a few of them does not by itself establish conformance with an accessibility standard.
How WCAG fits into accessibility
The Web Content Accessibility Guidelines (WCAG) are a technical standard for web content, not a synonym for the whole field of accessibility. WCAG 2.2 is organized around four principles: content should be perceivable, operable, understandable, and robust. Its guidelines include testable success criteria grouped into conformance levels A, AA, and AAA. The success criteria—not a handful of design examples—are what determine conformance.
WCAG is intended for people who need a technical basis for creating or evaluating web content, including content developers and accessibility evaluation-tool developers. It applies to dynamic content, multimedia, mobile web, and AI web interfaces as well as conventional pages.
Accessibility, usability, and inclusion are related—but different
These terms overlap, but they describe distinct concerns:
- Accessibility focuses on an equivalent experience for people with disabilities.
- Usability concerns how effectively and efficiently people can use a product, and how satisfactory that experience is. Usability problems do not necessarily affect people with disabilities disproportionately.
- Inclusion considers broader conditions for participation, such as connectivity, skills, economic circumstances, education, geography, culture, age, and language, as well as disability access.
Good product work can address all three together while keeping disability access in focus when doing accessibility work.
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Which web standards address which parts?
Web accessibility depends on different parts of the web ecosystem working together. Web content includes text, images, forms, multimedia, markup, scripts, and applications. People access it through user agents such as browsers and assistive technologies; authoring tools are the software and services used to create content.
| Standard | Primary focus |
|---|---|
| WCAG | Web content |
| UAAG | User agents, including browsers and assistive technologies |
| ATAG | Authoring tools used to produce web content |
| WAI-ARIA | Ways to make dynamic web content and advanced interface controls more accessible |
These standards have different purposes; the names are not interchangeable. For instance, WAI-ARIA can help communicate information about dynamic controls, but it does not replace the broader work of making content and interactions accessible.
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Where ScreenshotNeo fits—and where it does not
ScreenshotNeo is a website screenshot API and MCP server for developers. It can capture a page for visual documentation or review, but a screenshot is not an accessibility audit: it cannot establish whether keyboard navigation works, whether controls have appropriate accessible names, or whether content is usable with assistive technology.
For a screenshot capture, one GET request can return an image or PDF. For example, this cURL request saves a WebP screenshot of the target page; replace the example URL with the page you need to capture. See the ScreenshotNeo API documentation for request options.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo can accept cookie or consent banners and remove known consent platforms, newsletter popups, and chat widgets before a capture. Bot checks, blank pages, failed loads, timeouts, and cache hits are not billed; the response includes page-verdict and billing headers. Its MCP server offers tools for AI agents, including Claude, Cursor, and other MCP clients.
ScreenshotNeo’s free plan includes 1,000 screenshots per month with no card required; paid plans start at $5 for 3,000 screenshots. Sign up for ScreenshotNeo’s free plan.
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