How to Write a SEO Optimized ALT Text

ALT text, short for “alternative text,” is a crucial element of optimizing images for search engines and enhancing accessibility on websites. In this article, we will delve into the art of writing SEO optimized ALT text, exploring its significance, best practices, and techniques to improve your website’s visibility and user experience.

Understanding ALT Text

ALT text is an attribute used in HTML code to describe the content of an image when it cannot be displayed. It serves as a text alternative to images, aiding visually impaired users who rely on screen readers and search engine crawlers in understanding the image’s context.

Importance of SEO Optimized ALT Text

SEO optimized ALT text plays a pivotal role in improving the search engine rankings of your website. When search engines index your web pages, they analyze the ALT text associated with images to determine their relevance to search queries. Well-crafted ALT text helps search engines understand the content of the image and its connection to the overall page, contributing to better visibility in image search results.

Writing ALT Text for Images

To create SEO optimized ALT text, consider the image’s purpose and how it relates to the surrounding content. Use descriptive language to convey the image’s essence accurately. For example, instead of using generic terms like “image123.jpg,” opt for a descriptive phrase like “Golden Retriever playing fetch in a park.”

Best Practices for SEO Optimized ALT Text

Length and Format of ALT Text

Keep your ALT text concise and to the point, ideally under 125 characters. Search engines truncate longer descriptions, potentially losing crucial information. Ensure the text remains relevant and readable within this limit.

Incorporating Keywords

Include relevant keywords naturally in your ALT text, but avoid excessive keyword stuffing, which can harm your website’s ranking. Focus on providing accurate and helpful descriptions that align with the image’s content and your overall SEO strategy.

Descriptive and Contextual ALT Text

Strive to provide detailed descriptions that capture the image’s key features, colors, and actions. Additionally, consider the context of the image within the surrounding content, making it easier for search engines to understand its relevance.

Avoiding Keyword Stuffing

While incorporating keywords is important, avoid stuffing ALT text with excessive keywords. Such practices can lead to penalties from search engines and create a poor user experience. Instead, prioritize clarity, relevance, and readability.

Accessibility Considerations

Apart from SEO benefits, ALT text significantly contributes to website accessibility. It enables visually impaired users to comprehend the visual elements of a webpage through screen readers. By providing accurate and descriptive ALT text, you ensure your website is inclusive and accessible to all users.

Testing ALT Text

After writing ALT text for your images, it’s essential to test its effectiveness. Ensure your ALT text accurately reflects the image content and enhances the overall user experience. Conduct usability tests and gather feedback to refine your ALT text and optimize its impact.

Examples of SEO Optimized ALT Text

  1. Alt text: “Blue running shoes on a treadmill” Description: “A pair of vibrant blue running shoes placed on a treadmill.”
  2. Alt text: “Chef slicing fresh vegetables” Description: “A skilled chef meticulously slicing a colorful assortment of fresh vegetables.”


Writing SEO optimized ALT text is a crucial aspect of optimizing images for search engines and improving website accessibility. By following best practices, crafting descriptive text, and considering both SEO and user experience, you can enhance your website’s visibility, engage users, and provide inclusive experiences for all visitors.


  1. Why is ALT text important for SEO? ALT text helps search engines understand the content of images, contributing to better visibility in search results and potentially driving organic traffic to your website.
  2. Can I use the same ALT text for multiple images? It’s best to provide unique ALT text for each image to accurately describe its content. This approach enhances both SEO and accessibility.
  3. How long should ALT text be? It’s recommended to keep ALT text concise, under 125 characters, to ensure search engines display the entire description and maintain readability.
  4. Should ALT text include the image’s file name? No, it’s advisable to provide descriptive text rather than the image’s file name. This allows for a more accurate representation of the image’s content.
  5. Are there any tools to evaluate ALT text effectiveness? Yes, there are various accessibility and SEO auditing tools available that can help assess your ALT text and provide insights for improvement.

Leave a Comment