The truth is, when you’re assembling like a furniture, you’re not a professional furniture builder, and therefore the quality and the output is not going to be as good. And that metaphor applies to website design. Most people are not professional digital marketers or designers or understand user personas, or how to get traffic, or any of those things. And so, not only are you using all of your time to build the website but then you’re not getting as high-quality an output as you would as if you just hired someone who did that full time.
The ADA guidelines provide the foundation that organizations need to achieve digital accessibility best approaches, however they are not exhaustive. They do not provide direction for all of the accessibility challenges that people with disabilities face. They also fail to provide detailed technical instructions. With these limitations in mind, there is a ray of hope.

Without a crystal ball, it’s difficult to gauge where the Trump administration will direct the DOJ on ADA regulations in relation to websites moving forward, if they do at all. The administration has already emphasized a desire to move away from regulation and those with a vested interest in the application of the ADA to websites have taken that as a signal that the already thrice delayed process will continue to be pushed down the list of priorities.

^ Esshaki, Tiffany (July 21, 2015). "Remembering the 'Capitol Crawl'". C&G News. Retrieved January 15, 2016. The event, known as the "Capitol Crawl", was an image that legislators couldn't ignore, Bauer said. She had fought since the 1960s to legally protect the rights of people with disabilities, and with that heroic display, she said, lawmakers simply couldn't go back to their constituents without action.
If you use outside resources for your web needs, or have a dedicated web person or company, call them immediately. If you have a department or staff, even better. But— if you are working on your own, you would do yourself and your business a favor to contact a reputable web developer to discuss how to make your site accessible and avoid possible lawsuits. The older your website, the more likely it is that it is NOT compliant. Take action now!
On September 25, 2008, President George W. Bush signed the ADA Amendments Act of 2008 (ADAAA) into law. The amendment broadened the definition of "disability", thereby extending the ADA's protections to a greater number of people.[43] The ADAAA also added to the ADA examples of "major life activities" including, but not limited to, "caring for oneself, performing manual tasks, seeing, hearing, eating, sleeping, walking, standing, lifting, bending, speaking, breathing, learning, reading, concentrating, thinking, communicating, and working" as well as the operation of several specified major bodily functions.[43] The act overturned a 1999 US Supreme Court case that held that an employee was not disabled if the impairment could be corrected by mitigating measures; it specifically provides that such impairment must be determined without considering such ameliorative measures. It also overturned the court restriction that an impairment which substantially limits one major life activity must also limit others to be considered a disability.[43] In 2008, the United States House Committee on Education and Labor stated that the amendment "makes it absolutely clear that the ADA is intended to provide broad coverage to protect anyone who faces discrimination on the basis of disability."[44] Thus the ADAAA led to broader coverage of impaired employees.
Why was Amazon sued to begin with? Believe it or not, it was the Kindle converter for documents. Amazon has developed its own converter (MobiPocket) to digitize all the documents, books, and magazines that are shown on Kindle. But the problem is that Amazon’s converter was making it difficult for people with disabilities to access any items other than super basic documents.
While legal considerations might be your biggest worry, making your site more accessible is simply good customer service. More than 39 million Americans are blind and another 246 million have "low vision," Another one million are deaf in the U.S. Add to that people with mobility issues that prevent them from using their hands and that's a huge portion of the country's buying power.

For example, you may have thousands of images on your website that need to be checked for the presence of “alt text,” which is a requirement under WCAG 2.0. This is a task for automated testing software, which can perform the job much faster than any human. While automated tools can detect if the images on your website have alt text, however, they aren’t able to determine whether the text is correct and meaningful—which is a job for human testers.

Four WCAG testers, including expert end-users with disabilities and senior application developers, manually test all unique web pages (not just a small sample) and upload their accessibility test results to our customized online portal for client access. The following assistive technologies are utilized during Criterion’s manual website accessibility testing process:

Many people with disabilities use “assistive technology” to enable them to use computers and access the Internet. Blind people who cannot see computer monitors may use screen readers – devices that speak the text that would normally appear on a monitor. People who have difficulty using a computer mouse can use voice recognition software to control their computers with verbal commands. People with other types of disabilities may use still other kinds of assistive technology. New and innovative assistive technologies are being introduced every day.