Definition of Image Alt Text

Image Alt Text, short for “alternative text,” is a descriptive text added to an image’s HTML code. It provides context to search engines and improves website accessibility for visually impaired users who rely on screen readers. By accurately describing the image’s content and purpose, alt text enhances SEO and ensures a better user experience for all.


The phonetics of “Image Alt Text” are:Image: /ˈɪmɪdʒ/Alt: /ælt/Text: /tɛkst/

Key Takeaways

  1. Image Alt Text serves as a description for users who are unable to see the image, such as visually impaired visitors or when an image fails to load properly.
  2. Adding appropriate Alt Text to images positively impacts website accessibility and can improve SEO by providing valuable information for search engines to better understand the content.
  3. Keep the Alt Text relevant and concise, using clear language to describe the image while avoiding keyword stuffing and overly long descriptions.

Importance of Image Alt Text

Image Alt Text, short for alternative text, is a crucial aspect of digital marketing because it not only enhances the accessibility of a website for those with visual impairments but also contributes to search engine optimization (SEO). By providing a precise and descriptive text for an image, screen readers can relay the information to visually impaired users, creating a better user experience.

Moreover, the presence of keyword-rich Image Alt Text improves a website’s SEO performance, as search engines like Google utilize it to understand the content of an image, thereby enabling better indexing and higher ranking on search results.

Overall, Image Alt Text is vital in promoting website accessibility and improving digital marketing effectiveness.


Image Alt Text, short for “alternative text”, serves a crucial purpose in the realm of digital marketing as it aids in enhancing the online experience for users, especially those with visual impairments. These short descriptions, usually a few words or a brief sentence, are tagged to images, enabling screen reader software to convey the content and function of an image to users who are visually challenged.

In doing so, Image Alt Text not only ensures a more inclusive experience but also complies with accessibility guidelines such as the Web Content Accessibility Guidelines (WCAG) developed by the World Wide Web Consortium (W3C).Moreover, Image Alt Text also plays a role in boosting a website’s search engine optimization (SEO) performance. Search engine crawlers rely on these alternative descriptions to better understand and index the content within images.

By incorporating relevant keywords and concise descriptions, Image Alt Text enhances a website’s visibility and discoverability in search engine results. In sum, the implementation of Image Alt Text in digital marketing not only promotes accessibility but also significantly contributes to a website’s overall performance on search engines, paving the way for better user engagement and increased organic traffic.

Examples of Image Alt Text

Image Alt Text, also known as “alt tags” or “alt descriptions,” is a crucial element in digital marketing for optimizing website images for search engines and improving overall accessibility. Here are three real-world examples to illustrate the use of Image Alt Text:

E-commerce Website: On an online store selling smartphones, there are product images for each phone model. The Image Alt Text for a specific phone might be “Samsung Galaxy S21 Ultra in Phantom Silver with S-Pen.” This descriptive text not only helps search engines understand and index the image content but also provides context for visually impaired users who rely on screen readers.

Travel Blog: A travel blogger shares a stunning photo of the Eiffel Tower at sunset. The Image Alt Text for this photo could be “Eiffel Tower at sunset with golden sky in Paris, France.” This description makes it easier for search engines to understand the image subject and potentially rank the blog higher in search results, thereby increasing visibility and attracting more readers.

Non-profit Organization: A non-profit organization promoting environmental conservation features an image of a volunteer planting a tree on their website. The Image Alt Text could be “Volunteer planting a tree during environmental conservation event.” By providing an accurate description of the image, the organization enables search engines and users with visual impairments to better understand the content, ultimately leading to increased engagement and support from visitors.

FAQ: Image Alt Text

1. What is image alt text?

Image alt text, also known as “alternative text” or “alt attribute,” is a brief description of an image used by screen readers and search engines to understand the content of an image. It is helpful for users with visual impairments to access the information presented in images, and also aids search engines in indexing web content more accurately.

2. Why is image alt text important?

Image alt text is important for both accessibility and search engine optimization (SEO) purposes. It helps visually impaired users to understand the message conveyed by an image, enhancing their browsing experience. Moreover, search engines use alt text to index images and improve the relevance of search results, ultimately bolstering website visibility and ranking.

3. How to add image alt text in HTML?

To add image alt text in HTML, use the “alt” attribute in the img element. For example:
<img src=”example.jpg” alt=”A beautiful landscape with a sunset”>
In this example, the alt text “A beautiful landscape with a sunset” describes the content of the image.

4. What makes a good image alt text?

A good image alt text should be concise, descriptive, and contextually relevant. It should accurately represent the content and purpose of the image, as well as complement the surrounding text. Avoid using phrases like “image of…” or “picture of…,” and do not stuff keywords solely for SEO purposes, as this may lead to a negative user experience.

5. Can I leave the alt attribute empty?

Yes, you can leave the alt attribute empty (e.g., alt=””) in certain cases where the image is purely decorative and does not convey any meaningful information. Leaving the alt attribute empty signals screen readers to skip the image, but it is generally recommended to provide descriptive alt text whenever possible to enhance accessibility and SEO.

Related Digital Marketing Terms

  • SEO (Search Engine Optimization)
  • Accessibility
  • HTML (Hypertext Markup Language)
  • Web Content
  • User Experience (UX)

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