Alt text (alternative text) or Alt tag is a text description of an image that is used when the image cannot be displayed. This can be due to a number of reasons, such as the user’s browser not supporting images, the image being too large to load, or the user having turned off images in their browser settings.
Alt text is important for SEO because it helps Google to understand the content of your images. This can help your images to rank higher in search results, and it can also help visually impaired users to understand the content of your website.
When writing alt text, it is important to use descriptive text that accurately describes the image. Avoid using generic terms like “image” or “photo.” Instead, use specific terms that will help users to understand what the image is about. For example, if you have an image of a dog, you could use alt text like “A golden retriever dog running in the park.”
You can also use alt text to add keywords to your images. This can help your images to rank higher in search results for those keywords. However, it is important to use keywords that are relevant to the content of your image. Don’t just add keywords for the sake of adding keywords.
By using descriptive and keyword-rich alt text, you can improve the SEO of your images and make your website more accessible to visually impaired users.