ADA Title III: The Legal Foundation of Web Accessibility

Title III of the Americans with Disabilities Act (ADA) is the legal basis for nearly every web accessibility lawsuit filed in the U.S. 

Almost every business now serves customers online in one form or another, which is why courts and advocacy groups are placing increasing pressure on companies to ensure their platforms are accessible to everyone. The result? Thousands of lawsuits and demand letters are being filed each year.

In this guide, we’ll break down what ADA Title III actually says, who it applies to, what courts currently require, and the practical steps businesses can take to help avoid costly legal action.

What is ADA Title III?

TL;DR: ADA Title III prohibits disability discrimination by businesses and organizations that serve the public. Although originally written for physical locations, courts are now applying it to websites and digital services, too.

The Americans with Disabilities Act (ADA) was signed into law on July 26, 1990, to protect people with disabilities from discrimination in everyday life. The law is divided into several sections, known as “titles,” which cover different areas such as employment, transportation, telecommunications, and public services.

Title III specifically focuses on places of public accommodation. 

This basically means businesses and organizations that are open to the public cannot discriminate against people with disabilities. 

This traditionally only applied to physical spaces such as restaurants, hotels, retail stores, banks, medical offices, and entertainment venues. However, as more businesses moved online, courts began extending these expectations to websites and digital platforms, too.

ADA Title I vs Title II vs Title III

What is a “Place of Public Accommodation”?

Under ADA Title III, businesses that serve the public are considered “places of public accommodation” and must provide equal access to people with disabilities. 

The law outlines 12 broad categories of covered entities, including hotels, restaurants, retail stores, theaters, banks, healthcare providers, schools, gyms, professional offices, and other businesses open to the public.

Originally, the law was written with physical locations in mind. In 1990, lawmakers were focused on barriers like stairs without ramps, inaccessible restrooms, or missing Braille signage, not websites or mobile apps.

That’s where the modern legal debate begins.

How Different Courts Interpret Web Accessibility

Courts across the U.S. do not completely agree on how Title III applies to websites. This disagreement is known as the “circuit split,” and it plays a big role in website accessibility litigation.

Some federal appeals courts interpret Title III broadly and recognize that websites themselves can qualify as places of public accommodation, even without a physical storefront attached. 

Others take a narrower approach and require a connection, or “nexus,” between the website and a physical business location.

This split creates uncertainty for businesses operating nationally, especially eCommerce brands and service providers with customers across multiple states.

Why the Circuit Split Doesn’t Eliminate Risk

Although courts disagree on the legal reasoning, one reality remains consistent: website accessibility lawsuits continue to be filed across the country at a high volume. Plaintiffs often choose favorable jurisdictions, and many cases settle before a court ever issues a final ruling.

In practice, businesses cannot safely assume they are protected simply because their circuit has a narrower interpretation of Title III. Even companies without physical storefronts have faced lawsuits, demand letters, and costly settlements related to inaccessible digital experiences.

Practical takeaway: Regardless of where a business operates, inaccessible websites can still create significant legal exposure. The safest approach is to proactively improve accessibility rather than rely on unresolved legal gray areas.

The Link Between ADA Title III and Websites

Although ADA Title III was written decades before eCommerce and digital services became a thing, more courts and regulators have interpreted it to apply to websites and online experiences. 

The Department of Justice’s Position on Web Accessibility

The Department of Justice (DOJ), which enforces the ADA, has consistently signaled that websites should be accessible to people with disabilities, even though formal federal regulations for private businesses have evolved slowly.

Here’s how that position developed over time:

Major Court Cases That Shaped Website Accessibility Law

Several high-profile cases helped establish how courts interpret ADA compliance in the digital space.

Robles v. Domino’s Pizza (9th Circuit)

In one of the most influential accessibility cases, a blind customer argued that Domino’s Pizza’s website and mobile app prevented him from ordering food using screen-reader software. The court allowed the lawsuit to proceed, finding that the website and app had a sufficient connection to Domino’s physical restaurants.

This case reinforced the “nexus” theory often used in the 9th Circuit.

Gil v. Winn-Dixie (11th Circuit)

This case involved the grocery chain Winn-Dixie and initially resulted in a ruling favoring the plaintiff. However, the 11th Circuit later reversed the decision, holding that websites themselves are not places of public accommodation under Title III.

Even so, the case highlighted how divided courts remain on website accessibility issues.

Andrews v. Blick Art Materials (2nd Circuit)

In this case involving Blick Art Materials, the court took a broader interpretation and concluded that websites can qualify as public accommodations even without a direct connection to a physical storefront.

This ruling strengthened the legal argument that online-only businesses may still fall under ADA Title III.

What the 2024 Title II Rule Signals

The DOJ’s 2024 rule for government websites adopted WCAG 2.1 Level AA as the technical accessibility standard for Title II entities. While the rule does not directly regulate private companies under Title III, it sends a strong signal about the direction of accessibility enforcement in the United States.

In practice, many courts, attorneys, and accessibility experts already treat WCAG compliance as the benchmark for determining whether a website is reasonably accessible.

The Bottom Line: Despite ongoing legal debates and varying court interpretations, one fact is clear: ADA Title III is actively enforced against websites in the real world.

What Standard Does Title III Require?

Since Title III simply requires businesses to provide equal access and prevent discrimination against people with disabilities, where does WCAG come in?

Over time, courts, settlement agreements, and DOJ enforcement actions have consistently treated WCAG as the benchmark for measuring website accessibility, a standard that has evolved over the years:

• WCAG 2.0 AA became the early benchmark in many lawsuits and settlements.
• WCAG 2.1 AA expanded accessibility guidance for mobile devices and users with cognitive and low-vision disabilities.
• WCAG 2.2 AA is now the most current version and reflects updated best practices for modern digital experiences.

Practical Compliance Target

For most businesses today, the safest and most widely accepted target is WCAG 2.2 Level AA. While not explicitly written into ADA Title III itself, it has effectively become the practical compliance standard used by accessibility professionals, regulators, and many courts.

ADA Title III Lawsuits and Demand Letters

According to data tracked by UsableNet, more than 4,000 digital accessibility lawsuits have been filed annually in recent years, with thousands more businesses receiving private demand letters before an ADA lawsuit is ever filed.

The businesses most commonly targeted tend to be consumer-facing brands with heavy online functionality, including:

• eCommerce stores
• Restaurants and food delivery services
• Hotels and hospitality brands
• Financial services companies
• Healthcare providers
• Retail chains

The Typical Demand Letter Playbook

In many cases, businesses first receive a demand letter from a law firm rather than an immediate lawsuit. These letters typically allege ADA violations and request:

• A commitment to remediate the website
• Adoption of WCAG accessibility standards
• Payment of attorney’s fees and settlement costs

For many small and mid-sized businesses, settlements often fall somewhere between $5,000 and $25,000, although costs can climb much higher once legal defense fees and remediation expenses are added.

Serial Plaintiffs and “Drive-By” Lawsuits

Another controversial aspect of ADA website litigation is the rise of so-called “serial plaintiffs”, who file large numbers of nearly identical accessibility claims against different businesses. 

Some law firms specialize heavily in these cases and may file hundreds or even thousands of lawsuits annually.

Critics sometimes refer to these cases as “drive-by” lawsuits because they can be triggered by quick scans of websites for common accessibility issues. Supporters, however, argue that private litigation remains one of the primary ways accessibility laws are enforced in practice.

Regardless of where businesses stand on the debate, the legal risk is real. Even companies acting in good faith can face costly settlements and reputational damage if accessibility issues are ignored.

How to Comply with ADA Title III for Your Website

Achieving ADA website compliance is an ongoing process of improving accessibility, monitoring issues, and maintaining usable digital experiences for people with disabilities. 

Start With an Accessibility Audit

The first step is understanding your current level of accessibility. This usually involves a WCAG 2.2 Level AA audit, which identifies barriers that may affect users with disabilities.

A proper audit typically combines:

• Automated accessibility scanning tools
• Manual testing by accessibility specialists
• Keyboard-only navigation testing
• Screen-reader testing
• Mobile accessibility reviews

Remediate Accessibility Issues at the Code Level

Once issues are identified, they need to be fixed directly within the website’s code, structure, and content. Common remediation tasks include:

• Adding descriptive alt text to images
• Improving color contrast
• Fixing keyboard navigation issues
• Correctly labeling forms and buttons
• Ensuring compatibility with screen readers
• Structuring headings and page layouts properly

The goal is not simply to “pass a scan,” but to create a website that users with disabilities can actually navigate and use effectively.

Document Your Accessibility Efforts

Documentation can reduce legal risk in a big way, which is why businesses should keep records showing they are actively working toward accessibility compliance.

Helpful documentation may include:

• Accessibility audit reports
• Remediation records
• Internal accessibility policies
• Employee training documentation
• A public-facing accessibility statement on the website

Be Careful With Overlay-Only Solutions

Accessibility overlays, which are tools that add widgets or toolbars claiming to make websites instantly ADA compliant, are highly controversial. While some overlays may provide limited usability benefits, courts and accessibility experts generally do not view them as a substitute for proper remediation.

Multiple lawsuits have proceeded against companies using overlay products, and critics argue that overlays often fail to address the underlying accessibility barriers in a website’s code.

Accessibility Is No Longer Optional

ADA Title III web accessibility lawsuits are not slowing down, and businesses can no longer afford to treat accessibility as an afterthought. 

While the legal landscape is constantly changing, courts, regulators, and plaintiffs are aligned on one core expectation: websites should be accessible to everyone.

The good news is that proactive accessibility improvements do more than reduce legal risk. They also create better user experiences, strengthen brand reputation, and make digital services more inclusive for all visitors. 

ADA Title III FAQ