Enough Time: Users have sufficient time to read and use the website’s content. If part of the website has a time limit, users are able to turn off the time limit, or they can adjust or extend it to at least ten times the default limit (unless the time limit is essential to the website’s functionality, such as auction websites like eBay). Content that moves, blinks, or automatically updates can be paused or stopped unless it’s essential to the website’s functionality.
Through the Americans with Disabilities Act (ADA), our nation committed itself to eliminating discrimination against people with disabilities. The U.S. Department of Justice’s (DOJ) Civil Rights Division is proud to play a critical role in enforcing the ADA, working towards a future in which all the doors are open to equality of opportunity, full participation, independent living, integration and economic self-sufficiency for persons with disabilities.
President George H.W. Bush signed the Americans with Disabilities Act into law July 26, 1990. The ADA prohibits discrimination of people with disabilities and guarantees the same opportunities as everyone else. These opportunities include employment possibilities, purchasing of goods and services and the ability to participate in State and local government programs.
In addition, aids and services include a wide variety of technologies including 1) assistive listening systems and devices; 2) open captioning, closed captioning, real-time captioning, and closed caption decoders and devices; 3) telephone handset amplifiers, hearing-aid compatible telephones, text telephones (TTYs) , videophones, captioned telephones, and other voice, text, and video-based telecommunications products; 4) videotext displays; 5) screen reader software, magnification software, and optical readers; 6) video description and secondary auditory programming (SAP) devices that pick up video-described audio feeds for television programs; 7) accessibility features in electronic documents and other electronic and information technology that is accessible (either independently or through assistive technology such as screen readers) .
Read our case study of VisionCorps, ‘The Importance of ADA Website Compliance,’ to realize first-hand the impact an accessible website can have, and see real-world examples of ADA website compliance. VisionCorps’ total page views increased 157.64% after redesigning their website to be ADA compliant. Get more facts and figures by reading the case study now.
Aloha Tatiana! I wish your questions had straightforward easy answers – and if you are government funded it kind of is. (See here: https://www.ada.gov/websites2_prnt.pdf) if you are not government funded, this is something that is currently being debated in the legal system. That being said, the WCAG 2.0 guidelines are a good set of guidelines to help protect yourself if you feel you should. (You can see more on WCAG here: https://www.yokoco.com/find-out-how-to-make-your-website-compliant/)
When you insert an image into a post or page, consider providing a rich description for the caption that will improve the reading experience for everyone, but especially folks who can’t see the image. Be creative. Instead of “My son on his swing,” try “My son is playing on his favorite swing. His face is filled with pure joy on a beautiful Spring day. Perfection.” The goal here is to convey the feeling of the image.
If the user selects this button, the page is read aloud while text is highlighted. This is powered by ReadSpeaker, which I think is a really cool product. It provides improved accessibility to a vast audience of people who might not otherwise have their own assistive technology, such as people who are not native to the language of the page, or people with dyslexia or other reading challenges.

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.”

For discussion’s sake – while I don’t know the specific nature of your videos, my guess is that they might be demonstrating various techniques or other content in which simply hearing the audio of the video wouldn’t deliver the full context of the content. If making that content accessible is something you’d want to do, you’d likely want to start with a written description of what takes place in the video. Beyond that, high contrast vector images or diagrams showcasing specific parts of the technique would certainly help.

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.

These statistics are especially important when you consider the potential spending power of people with disabilities. Unfortunately, if the website isn’t accessible, then it is excluding more than 60 million Americans14. Additionally, 71 percent of customers14 with disabilities will instantly leave the site if it does not meet their accessibility needs. Another 80 percent of customers14 with disabilities have stated that they will spend more on a website that has improved accessibility features. Fortunately, if you follow Web Content Accessibility Guidelines (WCAG)7, then you can appeal to millions of individuals who want to enjoy the same online experiences as their friends, family, and neighbors. Giving them the chance is not only right, but it is also in accordance with ADA regulations.

You probably won't have to check your site with all of the available evaluation tools out there, but it is a good idea to do so for the most common web browsers. Just as accessibility software makes it easier for people with disabilities to navigate the Internet, these tools make it easier for developers to ensure accessibility from the start. When you think you've mastered it, go back through the Section 508 compliance checklist to ensure you've met every goal.