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Technology & Software · Written by the Blessed Records editorial team · Published 21 October 2026

Millions of people use the web with the help of screen readers, keyboards, captions or magnification. When a site ignores their needs, they simply cannot use it. Accessibility is therefore part of good design, and many of its practices also help search engines, mobile users and anyone in a noisy or bright place. This guide covers the essentials.

Why accessibility matters

People may have visual, hearing, motor or cognitive disabilities, temporary injuries or simply tired eyes and a cracked phone screen. Designing for the widest range of users makes your site more welcoming and often easier to maintain. The international standard for web accessibility is the Web Content Accessibility Guidelines, usually shortened to WCAG.

Practical basics

  • Alt text: give every meaningful image a short description with the alt attribute. Decorative images can have empty alt text.
  • Headings: use one main heading and then logical subheadings in order, so that screen reader users can navigate by structure.
  • Colour contrast: WCAG recommends a contrast ratio of at least 4.5 to 1 between normal text and its background.
  • Do not rely on colour alone to show meaning, such as red for errors. Add text or icons too.
  • Readable text: use a comfortable size and line spacing, and avoid long blocks of centred text.

Keyboard and forms

  • Make sure every link, button and form field can be reached and used with the Tab key and Enter.
  • Keep a visible focus outline so people can see where they are.
  • Connect each form field to a clear label.
  • Describe errors in text and explain how to fix them.

Media

  • Add captions to videos so that people who are deaf or in noisy places can follow.
  • Provide a transcript for audio such as podcasts or interviews.
  • Avoid autoplaying sound and flashing content.

A quick self-test

  1. Put your mouse aside and try using the whole page with the keyboard.
  2. Zoom the page to 200 percent and check that nothing breaks.
  3. Run a free accessibility checker in your browser and fix the main problems.
  4. Read the page aloud or use a screen reader briefly to hear the structure.

Common questions

Is accessibility expensive?
Not when you build it in from the start. Fixing it later takes more effort.

Does accessibility help search engines?
Often yes. Clear headings, descriptive text and well-structured pages help both people and search engines understand content.

Accessibility and your audience

Many visitors are not permanently disabled but benefit from the same features. Captions help someone watching a video on a noisy bus. Large tap targets help someone using a phone with one hand. Good contrast helps in bright sunlight. When you improve accessibility, you improve the experience for a much larger group than you might expect.

Key takeaways

  • Accessibility is good design for everyone.
  • Alt text, headings, contrast, keyboard access and captions are the core.
  • Test your own pages regularly with simple checks.

Keep reading

This article is for general information and education. It is not legal, financial or professional advice. Read our editorial standards.

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