The alt text (or alt attribute) is an extra piece of information that is added to your photos that is not visible to most visitors. The primary purpose of the alt text is to describe the photo to visually impaired users so that they still have a good user experience when visiting your website, even if they are unable to see the photos.
The alt text will also show when your photo doesn’t load (due to page load errors) and provides context to search engines as to how your photo should be indexed.
Using alt text for Pinterest will also help boost your SEO ranking.
How to add Alt Text:
In the upper-right corner of the Pin Scheduler, click the ⚙️ Global Pin Settings icon.
In the Global Pin Settings menu, toggle on the option labeled “Alt text field on Pin forms.”
Once enabled, every new Pin form will include a dedicated field where you can add alt text!