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THE MYTH

“Accessibility is only developers’ responsibility.”

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## FICTION!

## Accessibility is a team effort, not a hand-off

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## DESIGNERS

Choose readable colours, clear layouts and usable interactions.

83.9% of top home pages have low-contrast text



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## CONTENT CREATORS

Write clear headings, meaningful links and useful image descriptions.

53.1% of top home pages have images missing alt text



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## <1>

## DEVELOPERS

Build accessible structure, controls and keyboard interactions.

51% of top home pages have form inputs with no label

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## TESTERS & RESEARCHERS

Find barriers and learn from disabled people's experiences.

Automated tools find only 30–35% of issues. Manual testing finds the rest.



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## PRODUCT OWNERS & LEADERS

Make accessibility a priority, with time and resources.

The organisation holds the legal duty,

not individual developers



Sources: WebAIM Million 2026 · W3C WAI Accessibility Roles and Responsibilities Mapping · Equality Act 2010. Full sources overleaf.

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DON'T PASS THE BUCK. BREAK THE BARRIERS.

Everyone has a role. Each role is different.

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# The facts behind the fiction.

Why accessibility belongs to every role, not just developers.

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## WHY IT MATTERS

1 in 4

people in the UK are disabled (16.7 million)

1 in 6

people worldwide have a significant disability (1.3 billion)

69%



DWP Family Resources Survey 2024-25 · WHO, 2023 · Click-Away Pound Survey 2019 of disabled shoppers click away from hard-to-use sites. Only 8% tell the site owner. £17.1bn





in online sales UK

retailers could be

missing each year

## THE WEB TODAY: MANY FAILURES START BEFORE CODE

95.9%

of the top 1 million home pages fail WCAG checks

56.1



detected errors per

home page, on average

83.9%

have low-contrast text: a design decision

53.1%



are missing image alt

text: a content task

WebAIM Million, 2026. Six error types make up 96% of all errors found.

## One heading, three jobs — how the W3C splits a single feature

## Writers

Write the heading text and communicate the heading level

## Designers

Define how the headings look

## Developers

Code or mark up the headings so

assistive tech can use them

## Fix it early, pay less

Development: ≈$350 cheaper per defect than in QA

QA: ≈$450 cheaper per defect than in production

Production: $800+ per defect

Deque estimates: early work can cut accessibility spend from ~15% to 5% or less of a budget.

## The law looks at the organisation

UK: Equality Act 2010 and the Public Sector Bodies Accessibility Regulations 2018, including a published accessibility statement

EU: the European Accessibility Act has applied to many products and services since 28 June 2025

## “

When accessibility is left until late in a project, the responsibility often falls on developers.

W3C WAI, Accessibility Roles and Responsibilities Mapping

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DON'T PASS THE BUCK. BREAK THE BARRIERS.

Accessibility for all



Sources: WebAIM, The WebAIM Million (2026) · W3C WAI, Accessibility Roles and Responsibilities Mapping (draft) · Deque, “Doing the numbers: Digital accessibility and shifting left” (2024) · DWP, Family Resources Survey 2024 to 2025 · WHO, Disability fact sheet (2023) · Click-Away Pound Survey 2019, via AbilityNet · GOV.UK, Understanding accessibility requirements for public sector bodies · Directive (EU) 2019/882, European Accessibility Act.