alternatiivteksti

Alternatiivtekst, often shortened to alt-tekst, is a descriptive piece of text that accompanies an image when it is displayed on a webpage or in other digital content. Its primary purpose is to convey the information or function of an image to users who cannot see it. This includes individuals who are blind or have low vision and rely on screen readers, or in situations where images fail to load due to slow internet connections or incorrect file paths.

The content of alt-tekst should be concise and relevant to the image's purpose. For purely decorative images, an empty alt-tekst attribute is often appropriate, signaling to screen readers to skip the image. For informative images, such as charts or graphs, the alt-tekst should summarize the key data or conclusion. Functional images, like icons that act as buttons, require alt-tekst that describes the action performed when the image is clicked.

Implementing alt-tekst is a crucial aspect of web accessibility, ensuring that digital content is usable by a wider audience. Search engines also use alt-tekst to understand the content of images, which can contribute to improved search engine optimization (SEO). When writing alt-tekst, clarity and accuracy are paramount to providing a meaningful experience for all users.