Review a website maintenance plan for accessibility by checking whether accessibility has an owner, budget, repeatable test process, change gate, monitoring schedule, feedback route, incident response, and recovery path. A yearly audit cannot protect a site when routine content, templates, plugins, forms, or vendor updates introduce new barriers every week.
Define scope, policy, and responsibility
List public pages, authenticated areas, forms, documents, media, mobile views, third-party widgets, consent controls, payment or booking journeys, support channels, and administrative authoring tools. Define the target standard, exceptions process, legal or contractual obligations, review frequency, and who approves risk.
W3C's planning and managing guidance frames accessibility as continuing work across initiation, planning, implementation, and sustained monitoring. Map responsibility among content authors, designers, developers, quality assurance, procurement, support, legal, security, agencies, and product owners. A named accessibility owner should coordinate rather than become the only person responsible.
Put accessibility into every change path
Check intake templates, definitions of done, code review, content publishing, document upload, media production, plugin selection, procurement, vendor statements of work, release approval, and emergency fixes. Each should identify applicable checks and required evidence. Include acceptance testing for agency-delivered components.
W3C's accessibility planning guidance recommends policy, assigned responsibilities, resources, baseline review, acceptance testing, monitoring, reporting, escalation, and stakeholder engagement. Verify that the maintenance plan funds training, assistive-technology testing, expert review, and user involvement where needed.
Do not allow an urgent release to erase accessibility evidence. Define a time-limited exception with impact, owner, compensating support, remediation date, and escalation. Security and privacy controls remain in force; accessibility is not a reason to disable authentication or publish private content.
Review the test matrix
At minimum, test keyboard operation, visible focus, headings, landmarks, labels, names and roles, status messages, errors, text alternatives, captions, contrast, reflow, zoom, target size, dragging alternatives, timing, motion, authentication, and help. W3C's accessibility principles organize these needs as perceivable, operable, understandable, and robust.
Define representative pages and critical journeys, browsers, devices, screen readers, magnification, voice input, and other assistive technologies. Automated tools can support coverage, but the plan should not treat a zero-error scan as proof of usability or conformance. Record manual and user findings separately.
Monitor content and third parties
Schedule checks for new pages, templates, forms, PDFs, images, video, menus, dialogs, cookie banners, chat, maps, booking, checkout, and embeds. Test both ordinary and error states. Watch for unlabeled controls, missing alternative text, broken heading order, keyboard traps, lost focus, inaccessible authentication, and color-only status.
Inventory third-party owners, update channels, accessibility documentation, known exceptions, support routes, and replacement options. Re-test after vendor updates. A supplier's conformance statement does not replace acceptance testing in the site's actual configuration.
Prepare feedback, incidents, and recovery
Provide an accessible feedback route and alternative contact method. Define acknowledgement, triage, severity, ownership, workaround, remediation, retest, and closure. Protect personal or disability-related information and avoid asking users to disclose more than needed.
Keep a recoverable prior release and define rollback triggers for critical blockers such as inability to contact the business, authenticate, purchase, submit a form, or use keyboard navigation. An emergency rollback should restore security, privacy, and functional accessibility together.
Measure and sustain the plan
Track critical-journey pass rate, unresolved severity, time to acknowledge and repair, recurring defect types, pages reviewed, documents remediated, training, supplier exceptions, and user feedback. Preserve baselines and use consistent definitions. Report limitations honestly rather than claiming the whole site accessible from a small sample.
The maintenance plan passes when accessibility is embedded in routine change, responsible people and resources are known, critical journeys are repeatedly tested, findings have escalation and retest, users can report barriers, and a verified recovery path exists. Review the plan after platform, supplier, staffing, policy, or major content changes.
Sources
- Planning and Managing Web Accessibility — W3C Web Accessibility Initiative
- Plan web accessibility — W3C Web Accessibility Initiative
- Accessibility Principles — W3C Web Accessibility Initiative