Dreamweaver Accessibility Preferences & The Alt Text Attribute

The suggested maximum number of characters in an Alt text before having to use a longdesc attribute is 100. This means that when providing alternative text for an image, it is recommended to keep the description within 100 characters to ensure accessibility for individuals who use screen readers or have limited access to visual content.

Filler images or images that have no real value to the content of the page should have an empty alt tag. This is because alt tags provide alternative text for visually impaired users or when the image fails to load. In the case of filler images, since they do not contribute to the intended content, leaving the alt tag empty indicates that there is no meaningful information to convey about the image.

The Alt text attribute is used to provide a description of a graphical object to a screen reader. Screen readers are assistive technologies that read aloud the content of a webpage to individuals with visual impairments. By using the Alt text attribute, web developers can provide a text description of images, graphs, or other visual elements on a webpage, allowing screen readers to convey this information to visually impaired users. This helps ensure that all users, regardless of their abilities, can access and understand the content of a webpage.

The statement is false because "This is an image of..." is not a good example of an Alt text attribute. Alt text attributes are used to describe the content of an image for visually impaired users who use screen readers. The alt text should provide a concise and accurate description of the image, rather than stating that it is an image.