Accessibility Testing Services | WCAG, ADA & Compliance Testing

Accessibility Testing Services That Cover Every Compliance Dimension

From automated scans to manual keyboard and screen-reader testing — we cover the full WCAG 2.2 AA criteria set, not just the low-hanging fruit tools catch.

WCAG 2.2 AA Manual Audit

Expert manual testing against all WCAG 2.2 Level AA success criteria — covering perceivable, operable, understandable, and robust principles with issue-by-issue remediation guidance.

Keyboard-Only Navigation Testing

Validate that every interactive element, modal, dropdown, and form is fully operable without a mouse — a mandatory ADA and Section 508 requirement that automated tools routinely miss.

Screen-Reader Compatibility Testing

Live testing with NVDA (Windows), JAWS (enterprise), and VoiceOver (iOS/macOS) to validate semantic markup, ARIA implementation, and announcement accuracy for real assistive technology users.

Colour Contrast & Visual Testing

Audit all text, interactive elements, and visual indicators against WCAG 2.2 contrast ratio requirements — including non-text contrast criteria introduced in WCAG 2.1 and 2.2.

Mobile Accessibility Testing

iOS and Android accessibility validation using native assistive technologies — VoiceOver on iOS, TalkBack on Android — across real devices, not emulators.

Automated Accessibility Scanning

Axe-core, Lighthouse, and WAVE-powered automated scans integrated into your CI/CD pipeline — catching regressions on every build before they reach users.

Criterion	Level	Status	Remarks
1.1.1	A	Supports	All images have alt text
1.3.1	A	Partial	Some form labels missing
1.4.3	AA	Partial	3 components fail contrast
2.1.1	A	Supports	Full keyboard access
2.4.3	A	Partial	Modal focus order issues
4.1.2	A	N/A	Component not present

Why Vervali?

Certified engineers. Audit-grade deliverables. No automated-scan-only shortcuts.

Certified a11y Engineers

Our accessibility engineers are IAAP CPACC and WAS certified — with deep expertise in WCAG 2.2, ARIA authoring practices, and assistive technology behaviour across platforms.

Legal-Grade Documentation

VPAT 2.4 reports, audit documentation, and remediation guides structured for legal defensibility — suitable for demand letter responses, procurement submissions, and board reporting.

ISO 27001 Certified

Your code, designs, and product documentation are handled under ISO 27001-certified information security practices. NDA execution is standard for every engagement.

Get a Free Audit Scoping Call

Vervali Systems Pvt Ltd's work has increased test coverage by 70% to 80%, shortened regression testing time from multiple days to a few hours, and reduced manual regression effort by over 50%. The team has demonstrated effective project management and is responsive, flexible, and communicative.

Muhammad Raheel

Emaratech

80% Higher Test Coverage

Vervali Systems delivered our mobile app enhancements with speed and precision. Their geofencing implementation, quick bug fixes, and timely execution enabled us to launch smoothly on both the Play Store and App Store. With responsive project management and clear communication, they helped us move faster without compromising quality.

Vandana Shrivastava

Tech-Excel Computer Services

100% On-Time Delivery

Vervali Systems helped us build a tech-first platform that significantly increased customer engagement, with over 2,000+ users actively interacting post-launch. Their team owned the UI design and all technical integrations end-to-end, delivering the platform on time and within budget.

Kartik Shinde

Motilal Oswal Financial Services

Award-Winning Platform

Vervali Systems’ QA services significantly improved the stability of our proprietary software. Their high-quality bug reporting helped us identify issues early during UAT and even in production, freeing up valuable developer time. The team consistently delivered on schedule and communicated clearly throughout the engagement.

Vipin Battu

Yantraksh Logistics

5.0★ QA Service Rating

The clients are happy with the quality of the product delivered. Vervali Systems Pvt. Ltd. worked hard to meet tight deadlines while ensuring top-notch results. Their flexible and friendly team made the entire engagement a positive experience.

Hiren Patel

Vernost

100% Deadline Adherence

Vervali Systems Pvt. Ltd. has helped make our solutions virtually bug-free while enhancing designs. Their transparent and honest communication has been invaluable, and we truly appreciate their dedication to quality.

Neeraj Gutgutia

Right 2 Vote

Zero - Critical Bug Releases

I was always impressed with their feedback and commitment to improvement. The success of our business is tied to their exceptional QA efforts. Their leadership and team are reliable, professional, and a pleasure to collaborate with.

Maria Agic

HR Cloud

2x Iteration Speed

Internal stakeholders are highly satisfied with Vervali Systems Pvt. Ltd.'s QA services. Their smooth workflow, prompt bug reports, and consistent updates ensured we were always well-informed throughout the process.

Mitul Choksey

Cartgeek

95% Defect Detection Rate

Nilesh has been our go-to person for QA since day one. The quality of his work, along with the resources provided through him, has been outstanding. If you need a dedicated QA team, I highly recommend Nilesh and his company.

Victor Bello

Paystr

100% Team Reliability

Thank you for delivering top-notch performance testing for LiberatePro™. The detailed stress testing and performance tuning ensured that our platform is ready for scaling and user growth. We’re confident that the improvements made will provide a smoother experience for doctors and patients alike.

Nishi Sharma

Alpha MD

100% Performance Ready

Frequently Asked Questions

Accessibility testing as a service is the evaluation of a digital product to ensure people with disabilities can use it effectively. It covers users with visual, auditory, physical, cognitive, speech, and neurological disabilities. Providers typically combine automated scans, manual expert review, and testing with disabled users to identify barriers and deliver remediation guidance, making accessibility evaluation an ongoing part of the development process rather than a one-time audit.

The three main types of accessibility testing are automated testing, manual testing against guidelines, and testing with real users who have disabilities. Automated tools quickly flag common issues like missing alt text or poor color contrast. Manual review catches problems automation misses, such as unclear focus order. Testing with disabled users provides direct insight into real-world usability barriers that neither automated nor manual methods fully capture.

The four principles of accessibility come from WCAG and are summarized by the acronym POUR. Perceivable means content must be presented in ways users can detect. Operable means interface components must be navigable and functional. Understandable means content and controls must be clear. Robust means content must work reliably across assistive technologies. These principles form the foundation for all WCAG success criteria.

The 7 pillars of accessibility are practical content guidelines covering headings, alt tags, descriptive links, color use, lists, tables, and closed captions. Each pillar addresses a specific way content can be made usable for people with disabilities. For example, proper heading structure aids screen reader navigation, while closed captions support users who are deaf or hard of hearing. Together they provide a useful checklist for accessible content creation.

Accessibility testing typically begins with automated scanning tools to identify common violations quickly. Testers then perform manual review using assistive technologies such as screen readers and keyboard-only navigation, checking against standards like WCAG. Where possible, sessions with disabled users are included to surface real-world usability issues. Findings are documented with severity ratings and specific remediation recommendations to guide development teams.

No, accessibility testing cannot be fully automated. Automated tools are useful for detecting certain issues such as missing alt attributes, low color contrast, or absent form labels, but they are generally estimated to catch only a portion of WCAG violations. Many barriers require human judgment, such as assessing whether alt text is meaningful, whether navigation order is logical, or whether interactive elements are understandable in context. Manual and user testing are necessary for thorough coverage.

Accessibility testing ensures that people with disabilities can use your digital products, which is both an ethical obligation and often a legal requirement under laws such as the ADA in the United States or the European Accessibility Act. Beyond compliance, accessible products reach a broader audience and typically offer better usability for all users. Identifying barriers early in development is also significantly less costly than retrofitting a live product.

Most accessibility testing services follow the Web Content Accessibility Guidelines (WCAG), published by the W3C, which are the internationally recognized technical standard. WCAG 2.1 and 2.2 at levels A and AA are the most commonly required conformance targets. These guidelines also underpin legal frameworks including the ADA in the US, Section 508 for federal agencies, EN 301 549 in the EU, and the UK Equality Act, making WCAG compliance relevant across most jurisdictions.

WCAG 2.2 AA Testing.
VPAT-Ready in 5 Days.

Ready to scope your accessibility audit?

Compliance Delivered. Legal Risk Removed.

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14+

100%

Accessibility Testing Services That Cover Every Compliance Dimension

WCAG 2.2 AA Manual Audit

Keyboard-Only Navigation Testing

Screen-Reader Compatibility Testing

Colour Contrast & Visual Testing

Mobile Accessibility Testing

Automated Accessibility Scanning

Why Vervali?

Certified a11y Engineers

Legal-Grade Documentation

ISO 27001 Certified

Delivering Quality Through Testing
and Building Apps That Perform

Frequently Asked Questions

Ready to scope your accessibility audit?

WCAG 2.2 AA Testing. VPAT-Ready in 5 Days.

Ready to scope your accessibility audit?

Compliance Delivered. Legal Risk Removed.

5

14+

100%

Accessibility Testing Services That Cover Every Compliance Dimension

WCAG 2.2 AA Manual Audit

Keyboard-Only Navigation Testing

Screen-Reader Compatibility Testing

Colour Contrast & Visual Testing

Mobile Accessibility Testing

Automated Accessibility Scanning

WCAG 2.2 AA Audit Methodology

Scope Definition & Test Planning

Automated Baseline Scan

Manual Expert Review

Assistive Technology Testing

VPAT Report & Remediation Guide

Free Retest After Remediation

VPAT 2.4 Reports That Win Enterprise Deals

VPAT 2.4 (WCAG + Section 508 + EN 301 549)

ADA & Section 508 Framing

Delivered in 5 Business Days

Free VPAT Update After Remediation

Voluntary Product Accessibility Template

Tested with the Tools Real Users Depend On

JAWS

NVDA

VoiceOver

What Our Screen-Reader Tests Cover

Web Apps

iOS Apps

Android Apps

Desktop Apps

ADA + Section 508 Audits.Board-Level Risk Removed.

ADA Title III Compliance

Section 508 (US Federal)

EN 301 549 (European Accessibility Act)

GIGW & Indian Accessibility Standards

Why Vervali?

Certified a11y Engineers

Legal-Grade Documentation

ISO 27001 Certified

Flexible Partnership Options Tailored to Your Compliance Needs

One-Time WCAG 2.2 AA Audit + VPAT

Managed Accessibility Programme

ADA / Section 508 Rapid Response Audit

Embedded Accessibility Engineering

TESTIMONIALS

What do clients say about us?

Delivering Quality Through Testing and Building Apps That Perform

Frequently Asked Questions

What is accessibility testing as a service?

What are the three types of accessibility testing?

What are the 4 principles of accessibility?

What are the 7 pillars of accessibility?

How do you conduct accessibility testing?

Can accessibility testing be fully automated?

Why is accessibility testing important?

What accessibility standards or guidelines do you follow (e.g., WCAG, ADA)?

Ready to scope your accessibility audit?

WCAG 2.2 AA Testing.
VPAT-Ready in 5 Days.

ADA + Section 508 Audits.
Board-Level Risk Removed.

Delivering Quality Through Testing
and Building Apps That Perform