What are Alt Text and why does it matter for SEO?

Alt text, also known as "alt attribute" or "alt description", is an important element of search engine optimization (SEO) and digital marketing. It is a short piece of text that is associated with an image on a webpage, and that is used by search engines to understand the content and context of the image. Alt text can be a valuable tool for improving the ranking and visibility of a webpage or website in search results, and can be an essential part of a successful SEO and digital marketing strategy.

In the world of SEO, alt text is important because it can help improve the ranking and visibility of a webpage or website in search results. Search engines use algorithms to evaluate the relevance and quality of webpages, and to determine their ranking in the search results. By providing alt text for images on the webpage or website, website owners can make it easier for search engines to understand the content and context of the images, and can improve the ranking and visibility of their webpage or website in search results.

In the world of digital marketing, alt text is important because it can help improve the user experience on a website. Alt text provides users with a brief description of the content and context of an image, and can be useful for users who are unable to see the image, such as users with visual impairments or users with slow internet connections. By providing alt text for images on the webpage or website, website owners can improve the user experience on their website, and can ultimately attract more traffic and higher conversion rates.

To create and use alt text, website owners can follow these steps:

  1. Identify the images on the webpage or website that require alt text. Alt text should be provided for all images on the webpage or website that convey important information or context, such as images of products, services, people, or events. Alt text should not be provided for decorative or incidental images, such as spacers or backgrounds, that do not convey important information or context.

  2. Write a brief and relevant description of the content and context of the image. Alt text should be short, typically less than 150 characters, and should accurately describe the content and context of the image. Alt text should not be repetitive or irrelevant, and should not include keywords or phrases that are not relevant to the image.

  3. Add the alt text to the HTML code of the webpage or website. Alt text is added to the HTML code of the webpage or website using the "alt" attribute of the "img" tag, which is the HTML tag used to display images on a webpage. For example, if the image is located at "www.example.com/image.jpg" and the alt text is "Red flowers in a pot", the HTML code would be written as "<img src="www.example.com/image.jpg" alt="Red flowers in a pot">".

  4. Test and verify the alt text using a web accessibility testing tool. Once the alt text is added to the HTML code of the webpage or website, website owners can use a web accessibility testing tool, such as the W3C Markup Validator, to test and verify the alt text. The testing tool checks the HTML code of the webpage or website for errors and accessibility issues, and can provide feedback and suggestions for improving the alt text.

In summary, alt text is an important element of SEO and digital marketing. It provides a brief and relevant description of the content and context of an image, and can be used by search engines to understand the content and context of the image. By creating and using alt text, website owners can improve the ranking and visibility of their webpage or website in search results, and can improve the user experience on their website.