For people
Accessibility is about being able to participate independently.
Digital barriers can make everyday services difficult or impossible to use for people with disabilities.

Accessibility assurance
AAI helps organisations find accessibility barriers, test what automation cannot prove, give developers a clear route to fixing problems, verify the result, and preserve the evidence.
Our mission
We build practical technology and assurance tools that help organisations identify and remove digital barriers, so more people can participate independently in everyday digital life.
Read our full mission →Why accessibility matters
It can prevent people from taking part in ordinary digital life while creating legal, commercial, procurement, and reputational risk for the organisation providing the service.
For people
Digital barriers can make everyday services difficult or impossible to use for people with disabilities.
For organisations
Accessibility obligations increasingly form part of the legal and regulatory environment organisations operate within.
Customers, public bodies, and larger organisations increasingly expect evidence that digital services are accessible.
An inaccessible service can exclude customers and undermine confidence in an organisation's commitment to inclusion.
Problems found after launch are often more disruptive and expensive than accessibility built into design and development.
The challenge
Teams still need to understand the evidence, test what requires human judgement, give developers something actionable, retest the change, and prove what was ultimately resolved.
The AAI solution
AAI connects scanning, human testing, developer remediation, retesting, and reporting so the work remains visible from one stage to the next.

See the whole accessibility journey in one place.
Domain Health brings page coverage, scanning, automated results, manual verification, developer remediation, and reporting into one operational view. Teams can see where work is progressing, where attention is needed, and what happens next.
Pages → Scan → Results → Manual → Developer → Reports
Built for the people doing the work
AAI is more than a scanner. It gives accessibility testers and developers working tools for turning evidence into verified remediation.
01 — Find the evidence
AAI organises scan evidence around the pages your team is responsible for. See detected issues, affected elements, severity, and the manual checks that still need human review.


02 — Test systematically
Build reusable Test Plans, organise related Test Cases, run the work, record outcomes and evidence, and connect failed tests to remediation and retesting.
Plan → Sections → Tests → Run → Results → Fix & retest → Report
03 — Give developers real work
Work by page or repeated issue, filter by workflow state, prioritise remediation, and move completed changes to Ready for Retestinstead of treating “fixed” as the end of the process.


04 — Verify before closure
Each task retains its accessibility context, evidence, ownership, priority, and workflow. Developers can mark work ready for retest; AAI keeps verification separate from the act of making the change.
For accessibility testers
Define what should be tested, execute the work consistently, capture evidence and outcomes, raise developer work from failed tests, and preserve the history for review and reporting.
For developers
Developer Tasks connect remediation to the original evidence and standards context, while workbench views help teams manage pages, repeated patterns, priorities, blockers, and retesting.
Who AAI is for
Build accessibility into active development rather than discovering problems only when the site is finished.
Explore solutions →Manage accessibility as an ongoing operational responsibility with evidence, ownership, testing, and reporting.
Explore solutions →Coordinate scanning, testing, remediation, and assurance across multiple customer websites and projects.
Explore solutions →Accessibility Widget
The AAI Accessibility Widget gives visitors convenient accessibility adjustments directly on your website.
It complements — rather than replaces — accessible design, development, testing, and remediation.
Click here to try it now

Plans & packages
AAI supports organisations from individual websites through to multi-site portfolios and ongoing accessibility programmes. Compare the platform capabilities, testing options, and services available with each package.
Compare packages
See what each plan includes and choose the level of scanning, assurance, testing, and support that suits your organisation.
View plans & pricing →Or start with a free site check →What do I do next?
You do not need to solve everything before you begin. Start by understanding where you are, then move the work through a structured process.
Run the free site check for an initial picture of detected accessibility problems.
Review the evidence and use structured human testing where automation cannot provide the answer.
Manage developer remediation, retest the work, and keep the evidence of what was resolved.
Already working on a new website? Talk to us about using AAI during development →
Resources
AAI will grow into a practical source of guidance on accessibility, standards, development, rights, testing, and inclusive digital services.
Accessibility assurance