Alt text

Definition

Alt text, short for alternative text, is a descriptive text added to images on websites and digital content that provides context for users who may not be able to see the images. This text helps improve accessibility by allowing screen readers to convey the information and function of images to visually impaired users. Additionally, it plays a role in search engine optimization (SEO) by providing search engines with context about the content of images.

5 Must Know Facts For Your Next Test

1. Alt text should be concise yet descriptive enough to convey the essential information about an image, usually kept under 125 characters.
2. Using relevant keywords in alt text can enhance SEO, helping images rank better in search results and improving overall website visibility.
3. Alt text is not just for accessibility; it also serves as a placeholder when an image fails to load, ensuring that users still receive context about the content.
4. Effective alt text can improve user engagement, as it allows all users to understand visual elements, contributing to a better overall user experience.
5. There are guidelines for writing good alt text, such as avoiding phrases like 'image of' or 'picture of,' focusing instead on describing the image's function and meaning.

Review Questions

• How does alt text enhance accessibility for users with visual impairments?
  • Alt text enhances accessibility by providing descriptive information about images that screen readers can vocalize for visually impaired users. When an image is present on a webpage, the screen reader reads the alt text aloud, allowing these users to understand the context and importance of the visual content. This ensures that all users can access information presented in a digital format, creating a more inclusive online experience.
• In what ways can alt text contribute to improved SEO practices for websites?
  • Alt text can significantly improve SEO practices by incorporating relevant keywords related to the content of the images. When search engines crawl a website, they use alt text to understand what an image depicts, which can influence how well the site ranks in search results. Properly written alt text not only makes images accessible but also enhances visibility on search engines, attracting more visitors to the website.
• Evaluate the importance of writing effective alt text in relation to user engagement and content strategy.
  • Writing effective alt text is crucial for enhancing user engagement and aligning with content strategy goals. By providing clear and informative descriptions of images, alt text ensures that all users can grasp the intended message, even if they cannot see the visuals. This inclusivity fosters a better user experience and encourages visitors to spend more time on the site. Furthermore, well-crafted alt text aligns with broader content strategies aimed at increasing accessibility and improving overall site performance in search rankings.

Related terms

Accessibility: The design of products, devices, services, or environments for people with disabilities, ensuring they can access and benefit from them.

Screen Reader: Software that enables visually impaired users to read digital text aloud by converting the text displayed on a screen into speech.

SEO (Search Engine Optimization): The practice of optimizing websites and their content to improve visibility and ranking on search engine results pages.