If you do get sued, if you immediately remediate your website, you may be able to get the lawsuit dismissed on mootness (there’s no longer anything in dispute, i.e. plaintiffs are arguing your website is inaccessible but you’ve already made it accessible). This definitely does not mean you should wait to fix your website but it does mean you may have an out.
Enacted in 1990, this civil rights statute was created for the purpose of limiting discriminatory practices towards individuals with disabilities. This act and its amendments guarantee equal opportunity for persons with disabilities in employment, state and local government services, public accommodations, commercial facilities, and transportation. Both public and private entities are affected by the ADA.
Federal law isn't the only consideration for businesses. Additionally, each state interprets the law differently. Consider the case against Netflix in 2012. Lawsuits were brought in federal court in Massachusetts and California. Netflix was accused of violating the ADA by not offering "closed captioning" options for its Internet streamed movies. Illustrating the complexity of this issue, the courts reached completely opposite decisions. Massachusetts held that Netflix must comply with the ADA, while the California court found that Netflix did not fall under the ADA's definition of "public accommodation."
Accessibility Checklist, provided through Elsevier, offers a free and easy way to review the most recent and relevant web accessibility guidelines. The checklist was released on March 20, 2015 and covers guidelines WCAG 2.0—W3C Web Content Accessibility Guidelines 2.0, Section 508 and U.S. federal procurement standards. The checklist gives a simplified language framework, and the user interface is easy to navigate. Users can filter the guidelines by topic, and these topics include keyboard, images and forms. Another filter option includes filtering by standard levels, including A, AA, or AAA.
Case law has been the most helpful in illuminating the implications of the ADA for websites.There have been lawsuits involving companies like Expedia, Hotels.com, Southwest Airlines, and Target as defendants and primarily featuring accessibility organizations as plaintiffs. These cases had mixed results, but each helped clarify the ADA's jurisdiction on the web. 
As a web developer, Ryan's work is what makes the magic happen. He spends most of his time creating custom websites, which involves turning the designers' visual mockups into code. It's lucky that he's such a good problem solver, because many of Ryan's projects involve working with clients to create complex custom functions. He's also one of the few developers in the country with extensive experience developing for the HubSpot CMS.

As I mentioned above, under each WCAG 2.1 principle is a list of guidelines, and under each guideline are compliance standards, with techniques and failure examples at each level. Some guidelines include only Level A items; others include items for multiple levels of conformance, building from A to AAA. At each stage, you can easily see what more you would need to do to reach Level AA or AAA. In this way, many websites include elements at multiple levels of accessibility.
Level AA is a little more significant, and makes sites accessible to people with a wider range of disabilities, including the most common barriers to use. It won't impact the look and feel of the site as much as Level AAA compliance, though it does include guidance on color contrast and error identification. Most businesses should be aiming for Level AA conformity, and it appears to reflect the level of accessibility the DOJ expects. 
Another useful tool for ADA website compliance is an automated ADA Website Compliance Checker. This is a software program that automatically checks whether certain conditions are met. A program used for testing ADA compliance might check whether all images do indeed have alt text, or whether the color contrast between the text and the background meets a certain minimum level. Some programs check multiple conditions at once, while others are designed to check just one accessibility feature. Some check whether they meet specific technical or legislated requirements, such as the requirements of Section 508 of the Rehabilitation Act.
More than 1 billion people live with disabilities; over 57 million reside in the United States, many of whom are unable to participate in everyday activities, such as using computers, mobile phones, tablets, and similar technologies. Devices that should help to improve quality of life for disabled individuals often become a source of frustration due to the inaccessibility of websites. By making your website ADA compliant, you will gain a new and loyal revenue source, and minimize the possibility of legal action against your company.
The Americans with Disabilities Act (ADA) and, if the government entities receive federal funding, the Rehabilitation Act of 1973 generally require that state and local governments provide qualified individuals with disabilities equal access to their programs, services, or activities unless doing so would fundamentally alter the nature of their programs, services, or activities or would impose an undue burden.2 One way to help meet these requirements is to ensure that government websites have accessible features for people with disabilities, using the simple steps described in this document. An agency with an inaccessible website may also meet its legal obligations by providing an alternative accessible way for citizens to use the programs or services, such as a staffed telephone information line. These alternatives, however, are unlikely to provide an equal degree of access in terms of hours of operation and the range of options and programs available.
The Department of Justice may file lawsuits in federal court to enforce the ADA Compliance, and courts may order compensatory damages and back pay to remedy discrimination if the Department prevails. Under title III, the Department of Justice may also obtain civil penalties of up to $55,000 for the first violation and $110,000 for any subsequent violation of ADA Compliance.
There are many different kinds of automated testing tools that can currently be used as ADA website compliance checkers. Some are free of charge, while others come with a cost. Some can be used online. Some must be downloaded and installed before use. The World Wide Web Consortium keeps an online database of checkers, called the Web Accessibility Evaluation Tools List, that can be filtered according to a web designer’s needs.9

Input Assistance: When users are entering input into the website, any input errors are automatically detected and written out, providing, for instance, text descriptions that identify fields that were not filled out or data that was in the wrong format. The website also provides suggestions to fix the errors. Input fields and buttons are labeled to provide their functions and instructions. If the user’s input is being used for legal purposes or financial transactions, then the user must be able to reverse submissions or correct errors.
A simple Google Search for “Accessibility Tools” yields a number of lists and collections of tools. I could have very easily copied one or two such lists and voila, I have a new post. But, I wanted to add a personal touch to this post by writing about the tools I use in my daily job. I was surprised by the number of broken links in the lists I visited – most of them linking to obsolete Accessibility Tools such as Bobby – some with links to the old 1995 website!
Thus, if there are barriers preventing a customer with a disability from doing business in a place of public accommodation, those barriers must be removed (as long as it’s not a great hardship to do so) in order to comply with the ADA. Barriers could be physical, such as a display rack that is out of reach. They could be in the form of discriminatory policies, like a “no animals allowed” rule that excludes people with guide dogs and other service animals. Barriers could also be digital, such as a public website or app that is not accessible to people with certain disabilities.
Absent the adoption of specific technical requirements for websites through rulemaking, public accommodations have flexibility in how to comply with the ADA’s general requirements of nondiscrimination and effective communication. Accordingly, noncompliance with a voluntary technical standard for website accessibility does not necessarily indicate noncompliance with the ADA.
The ADA is the Americans with Disabilities Act, passed almost 30 years ago in 1990. This act was originally put in motion pertaining solely to physical location. It requires establishments to provide people with disabilities easy access to various levels throughout the business. This act was set to achieve an equal experience to all people, handicapped or not.
The U.S. Department of Transportation enforces regulations governing transit, which includes ensuring that recipients of federal aid and state and local entities responsible for roadways and pedestrian facilities do not discriminate on the basis of disability in highway transportation programs or activities. The department also issues guidance to transit agencies on how to comply with the ADA to ensure that public transit vehicles and facilities are accessible.
Many government services and activities are also provided on websites because the public is able to participate in them at any time of day and without the assistance of government personnel. Many government websites offer a low cost, quick, and convenient way of filing tax returns, paying bills, renewing licenses, signing up for programs, applying for permits or funding, submitting job applications, and performing a wide variety of other activities.
Every year numerous lawsuits are taken against businesses that fail to follow the ADA’s proposed requirements for web accessibility. This failure occurs because organizations, including state and local government entities, fail to read the ADA Best Practices Tool Kit.8 They also do not follow the most up to date version of the WCAG.9 These two failures are not only detrimental to people with disabilities who want to effectively browse the web, but they are also inexcusable in today’s digitally driven world.
Webpage designers often have aesthetic preferences and may want everyone to see their webpages in exactly the same color, size and layout. But because of their disability, many people with low vision do not see webpages the same as other people. Some see only small portions of a computer display at one time. Others cannot see text or images that are too small. Still others can only see website content if it appears in specific colors. For these reasons, many people with low vision use specific color and font settings when they access the Internet – settings that are often very different from those most people use. For example, many people with low vision need to use high contrast settings, such as bold white or yellow letters on a black background. Others need just the opposite – bold black text on a white or yellow background. And, many must use softer, more subtle color combinations.
The program can be run from your desktop computer, command line, or via Google Chrome or Firefox add-ons. It assists by generating reports of these five evaluation results, and reports are supported in HTML format. Browser plugins supported include both Google Chrome and Firefox. Total Validator automatically checks single web pages, groups of web pages or websites, and password protected or restricted pages. Supported formats include HTML and XHTML. The most recent version 8.5 was released on August 3, 2014, and licensing is free as well as in commercial format.

Additionally, in February 2018, Congress passed the ADA Education and Reform Act, a bill designed to make it harder for disabled Americans to sue businesses for discrimination. Republican lawmakers who wrote and passed the bill argue that the law will help curb “frivolous” lawsuits, while opponents have argued that this law will gut the ADA, essentially giving businesses little reason to follow the ADA guidelines at all.

Many people with disabilities use assistive technology that enables them to use computers. Some assistive technology involves separate computer programs or devices, such as screen readers, text enlargement software, and computer programs that enable people to control the computer with their voice. Other assistive technology is built into computer operating systems. For example, basic accessibility features in computer operating systems enable some people with low vision to see computer displays by simply adjusting color schemes, contrast settings, and font sizes. Operating systems enable people with limited manual dexterity to move the mouse pointer using key strokes instead of a standard mouse. Many other types of assistive technology are available, and more are still being developed.
UPDATE: Since writing this post in August 2017, several important changes have taken place in the laws regarding ADA compliance for websites. On December 26, 2017, the Department of Justice announced that they have withdrawn the Obama-era Advance Notice of Proposed Rulemaking mentioned in this article which intended to require ADA website compliance. The DOJ’s withdrawal announcement stated, “The Department will continue to assess whether specific technical standards are necessary and appropriate to assist covered entities with complying with the ADA.”

Videos need to incorporate features that make them accessible to everyone. Provide audio descriptions of images (including changes in setting, gestures, and other details) to make videos accessible to people who are blind or have low vision. Provide text captions synchronized with the video images to make videos and audio tracks accessible to people who are deaf or hard of hearing.

First, these lawsuits will be very easy for plaintiffs to work up. The plaintiffs do not need any site inspection, experts or research. They can just surf the web from the convenience of their homes or offices. Marty says the "surf by" complaints could dwarf the "drive by" ADA lawsuits that looked for missing accessible parking spaces and other readily visible shortcomings.
Legal precedent is changing, and ADA compliance related lawsuits are becoming more successful, and the courts are seeing more of them as a result. Title III of the Americans with Disabilities Act pertains to private sector businesses. Lately, those protections are more frequently expanding into digital territory as web and mobile applications become more necessary in our day-to-day lives.
Automated testing is the first step toward determining if your website is accessible to people with disabilities, including those using assistive technologies like screen readers, screen magnifiers, switch controls, and others. The free testing tools on this website will give you an idea of whether your website is compliant with laws like Section 508, the Americans with Disabilities Act (ADA), and the 21st Century Communications and Video Accessibility Act. If you find you have many violations, Level Access has experts that can help you reduce your legal risk.
The most recent version was released March 11, 2002. The guidelines covered include WCAG 2.0—W3C Web Content Accessibility Guidelines 2.0, Section 508, and U.S. federal procurement standards. The program generates findings of evaluation results, giving step-by-step evaluation guidance, exhibiting results and information within the page and altering the presentation of web pages. It checks single pages automatically, as well as websites or groups of pages, including those with password protected or restricted pages. Supported formats include CSS, HTML, XHTML, PDF documents, and Images. Licenses are available for commercial and enterprise purposes.