Web Accessibility Testing Services to Improve Digital Experiences

Millions of users rely on accessible digital experiences every day. Osto's Web Accessibility Testing Services help you identify barriers, meet WCAG and ADA compliance standards, and build inclusive digital products that work for everyone — reducing legal risk while expanding your audience reach and brand credibility.

Accessibility specialist reviewing a website audit report on a laptop with WCAG compliance checklist

Our Web Accessibility Testing Services

Comprehensive accessibility testing solutions to help your digital products meet compliance standards and deliver inclusive experiences for all users.

WCAG Compliance Audit

Thorough evaluation of your website or application against WCAG 2.1 and 2.2 success criteria across all three conformance levels — A, AA, and AAA — with detailed findings and prioritized remediation guidance.

Automated Accessibility Scanning

AI-powered automated scanning tools continuously analyze your digital properties for accessibility violations, delivering fast, scalable coverage across large websites with structured, actionable reports.

Manual Expert Testing

In-depth manual testing by accessibility specialists using assistive technologies including screen readers, keyboard-only navigation, and magnification tools to uncover issues automated tools miss.

Assistive Technology Testing

Real-world compatibility testing across leading assistive technologies such as JAWS, NVDA, VoiceOver, and TalkBack to ensure your platform works seamlessly for users with disabilities.

ADA & Section 508 Compliance

Assess your digital assets against ADA Title III and Section 508 requirements, reducing legal exposure and ensuring equitable access for users across public and federally supported platforms.

Remediation Support

Hands-on guidance and developer-facing remediation documentation to help your team fix identified accessibility issues efficiently, with re-testing to verify all fixes meet required compliance standards.

Accessibility testing team walkthrough showing audit workflow steps on a whiteboard

Our 5-Step Web Accessibility Testing Process

Step 1: Scope Definition & Requirements Gathering

We begin by understanding your digital product, target audience, applicable compliance standards (WCAG, ADA, Section 508), and business goals. This scoping session ensures every test is aligned with your specific platform type, user base, and regulatory obligations.

Step 2: Automated Accessibility Scanning

Step 3: Manual Expert & Assistive Technology Testing

Step 4: Detailed Reporting & Prioritized Findings

Step 5: Remediation Guidance & Verification Testing

Trusted By Many

Success Stories

See how organizations have transformed their digital accessibility and achieved compliance with Osto's testing services.

"Osto's AI Web Vulnerability Scanning completely transformed our security posture. The 2x faster scan execution and machine learning algorithms identified critical vulnerabilities we'd missed. Highly recommended for growing startups."

Sarah Chen

"We struggled with multi-cloud visibility across AWS and Azure until Osto. The Cloud Security Posture Management service gave us complete unified inventory in one dashboard. Game-changer for our scaling operations."

Marcus Thompson

"Implementing web accessibility testing services through Osto streamlined our compliance workflow. Their Admin Management system with tailored permissions reduced our security overhead significantly."

Jennifer Rodriguez

"Our remote team needed secure access urgently. Osto's Zero Trust Network Access solution deployed in hours, not weeks. MFA enforcement gave us peace of mind immediately."

David Kumar

"As a startup, budget matters. Osto's comprehensive feature set—including AI Web Vulnerability Scanning and multi-cloud support—delivered enterprise security without enterprise costs. Outstanding value."

Alex Patel

"Three years with Osto. Their team listens, innovates constantly, and the platform grows with us. Content Filtering and WAF Custom Domain Proxy support our evolving business needs seamlessly."

Emma Wilson

"The Nginx reverse-proxy architecture in Web Application & API Protection is sophisticated yet simple. SSL Certificate Management auto-renewal eliminated our certificate headaches. Technical excellence throughout."

Rajesh Nair

"For enterprises evaluating web accessibility testing services, Osto stands apart. Their unified multi-cloud posture visibility across Azure, AWS, and GCP, plus AI-driven adaptive profiling, positions them as industry leaders."

Patricia Okonkwo

"Osto's AI Web Vulnerability Scanning completely transformed our security posture. The 2x faster scan execution and machine learning algorithms identified critical vulnerabilities we'd missed. Highly recommended for growing startups."

Sarah Chen

"We struggled with multi-cloud visibility across AWS and Azure until Osto. The Cloud Security Posture Management service gave us complete unified inventory in one dashboard. Game-changer for our scaling operations."

Marcus Thompson

"Implementing web accessibility testing services through Osto streamlined our compliance workflow. Their Admin Management system with tailored permissions reduced our security overhead significantly."

Jennifer Rodriguez

"Our remote team needed secure access urgently. Osto's Zero Trust Network Access solution deployed in hours, not weeks. MFA enforcement gave us peace of mind immediately."

David Kumar

"As a startup, budget matters. Osto's comprehensive feature set—including AI Web Vulnerability Scanning and multi-cloud support—delivered enterprise security without enterprise costs. Outstanding value."

Alex Patel

"Three years with Osto. Their team listens, innovates constantly, and the platform grows with us. Content Filtering and WAF Custom Domain Proxy support our evolving business needs seamlessly."

Emma Wilson

"The Nginx reverse-proxy architecture in Web Application & API Protection is sophisticated yet simple. SSL Certificate Management auto-renewal eliminated our certificate headaches. Technical excellence throughout."

Rajesh Nair

"For enterprises evaluating web accessibility testing services, Osto stands apart. Their unified multi-cloud posture visibility across Azure, AWS, and GCP, plus AI-driven adaptive profiling, positions them as industry leaders."

Patricia Okonkwo

"Osto's AI Web Vulnerability Scanning completely transformed our security posture. The 2x faster scan execution and machine learning algorithms identified critical vulnerabilities we'd missed. Highly recommended for growing startups."

Sarah Chen

"We struggled with multi-cloud visibility across AWS and Azure until Osto. The Cloud Security Posture Management service gave us complete unified inventory in one dashboard. Game-changer for our scaling operations."

Marcus Thompson

"Implementing web accessibility testing services through Osto streamlined our compliance workflow. Their Admin Management system with tailored permissions reduced our security overhead significantly."

Jennifer Rodriguez

"Our remote team needed secure access urgently. Osto's Zero Trust Network Access solution deployed in hours, not weeks. MFA enforcement gave us peace of mind immediately."

David Kumar

"As a startup, budget matters. Osto's comprehensive feature set—including AI Web Vulnerability Scanning and multi-cloud support—delivered enterprise security without enterprise costs. Outstanding value."

Alex Patel

"Three years with Osto. Their team listens, innovates constantly, and the platform grows with us. Content Filtering and WAF Custom Domain Proxy support our evolving business needs seamlessly."

Emma Wilson

"The Nginx reverse-proxy architecture in Web Application & API Protection is sophisticated yet simple. SSL Certificate Management auto-renewal eliminated our certificate headaches. Technical excellence throughout."

Rajesh Nair

"For enterprises evaluating web accessibility testing services, Osto stands apart. Their unified multi-cloud posture visibility across Azure, AWS, and GCP, plus AI-driven adaptive profiling, positions them as industry leaders."

Patricia Okonkwo
The Osto Difference

Why Choose Osto for Web Accessibility Testing?

Osto combines AI-powered tooling with certified human expertise to deliver accessibility testing that is thorough, actionable, and built for agile, scaling teams.

AI-Powered Accuracy

Our machine learning-driven scanners deliver 2x faster analysis with improved detection accuracy, ensuring no critical accessibility barrier goes unnoticed.

Certified Expertise

Dedicated accessibility specialists combine automated tools with manual assistive technology testing to surface every issue — meeting WCAG, ADA, and Section 508 standards.

Actionable Reporting

Every finding is mapped to a specific WCAG criterion, severity level, and fix recommendation — so your development team can remediate efficiently without guesswork.

Continuous Compliance Support

From initial audit through remediation verification, Osto provides ongoing support and re-testing to ensure your digital products maintain compliance as they evolve.

Meet the Osto Team

Passionate security and accessibility experts dedicated to making digital experiences safer and more inclusive.

Osto was built on a single conviction: that powerful security and digital inclusivity should be accessible to every business, not just large enterprises with dedicated IT departments. As a comprehensive cybersecurity and digital assurance platform designed for new-age businesses, Osto has grown rapidly by continuously expanding its capabilities — from core web application protection to AI-powered threat detection, multi-cloud posture management, and now web accessibility testing. The team brings deep technical expertise across security, compliance, and digital experience, partnering with startups and scaling enterprises alike to simplify complexity, reduce risk, and build digital products that work for every user. Reach us at connect@osto.one.

End-to-End SupportFrom initial audit scoping through remediation verification and ongoing compliance monitoring
AI-Powered PlatformMachine learning-driven scanning delivering 2x faster, more accurate results
Multi-Cloud CoverageFull accessibility and security assurance across Azure, AWS, and GCP environments

Frequently Asked Questions

What is web accessibility testing and why does it matter?

Web accessibility testing evaluates whether your website or application can be used effectively by people with disabilities, including those who rely on screen readers, keyboard navigation, or other assistive technologies. It matters because inaccessible digital products exclude a significant portion of users, expose organizations to legal risk under laws like the ADA, and limit overall audience reach and brand reputation.

Which accessibility standards do you test against?

What is the difference between automated and manual accessibility testing?

What assistive technologies are included in your testing?

How long does a web accessibility audit take?

What does the accessibility audit report include?

Do you provide support after the audit to help fix accessibility issues?

How often should we conduct accessibility testing?

Still Have Questions About Accessibility Testing?

Speak with one of our accessibility specialists for a free consultation tailored to your platform.

Certified & Trusted

Awards and Recognition

WCAG 2.2 conformance badge

WCAG 2.2 Conformance

Audits aligned with the latest international web accessibility standard

ADA digital compliance certification badge

ADA Compliance Certified

Recognized for expertise in Americans with Disabilities Act digital compliance

ISO IEC 27001 information security certification badge

ISO/IEC 27001 Aligned

Security and data handling practices aligned with ISO 27001 standards

Ready to Make Your Digital Experience Accessible to Everyone?

Share your project details and an Osto accessibility specialist will be in touch to discuss your audit scope, timelines, and how we can help you achieve and maintain compliance.

Contact Us Today

For immediate assistance, feel free to give us a direct call at You can also send us a quick email at connect@osto.one