Facebook's interface can be quite overwhelming and constantly changing, making it difficult for those with disabilities to use. The News Feed is built around infinite scrolling, meaning that there is no finite end or beginning to it, which can be cognitively overwhelming as endless posts, ads, and suggested content are constantly presented to the user. This can make it challenging for users, particularly those with ADHD, autism or cognitive processing issues, to concentrate on any particular piece of information or to easily find important posts.

In terms of accessibility, this design affects the principles of “Understandable” and “Operable” since there is not always a predictable way of navigating and content priority is not based on a stable structure, but on algorithms. Facebook provides some accessibility elements such as alt text for images and screen reader compatibility, but the site's overall complexity can make it difficult for some people to use effectively.

Despite the mixed signs in accessibility, Steam is a website that has a very dense user interface design, particularly at the storefront and library pages. The home page can be cluttered with many rows of game suggestions, sales banners and various parts of content that might overwhelm the visitors. This can cause users to suffer from cognitive overload, especially those with attention or learning disorders, and make it difficult to concentrate on specific information or navigate efficiently.

It also uses a lot of visual grouping and scrolling through a lot of content, causing some users to lose clarity, when compared to simpler, more structured page designs. In terms of accessibility, this can affect the “Understandable” principle as the information architecture is not always intuitive or predictable.

The images on Apple's website show good accessibility design, with a clear hierarchy in the visual layout and a high level of contrast between the text and background. Large fonts, ample space and minimal clutter reduce potential cognitive overload and allow users to focus on key information. This aligns with the “Understandable” guideline of web access and shows content in a neat and straight-to-the-point format that's simple to navigate.

Apple tends to be relatively consistent throughout its site, making it easier for screen reader users and folks with cognitive disabilities to navigate. The simple structure and logical organization of sections make it easier to navigate both visually and with assistive technologies, supporting the “Operable” and “Robust” principles of accessible web design.

Crunchyroll is good with its color contrast and dark mode design, which are methods of good accessibility. Menus and subtitles stand out against the dark background and navigation features are clearly visible, which can help users read them better, particularly in dim lighting conditions. The contrast between the foreground and background content benefits users with poor vision and enhances the readability of the material. This fits with the “Perceivable” guideline of web accessibility which focuses on making content more easily discernible and understandable to the user visually. Crunchroll also has customizable captions and screen reader compatibility, enhancing accessibility for a wider range of users.

SHEIN

The homepage of this website is a poor design in terms of accessibility due to the excessive amount of advertisements, popups, moving banners and product listing along the way. Users with ADHD, Autism, dyslexia and other cognitive disabilities may experience cognitive overload with the information overload. The accessibility principles state that webpages should have predictable and simple layouts that are easily understood and navigated. This page contains too much visual information that may be distracting for visitors to the page.