I recently finished a training in ADA compliance for websites. It was illuminating and daunting, as I realizated that there’s a lot of work to be done. It also reiterated—in no uncertain terms—a gospel I’ve been preaching for several years now. Sites need to be accessible for everyone on every platform. Previously I was just focusing on responsive sites (sites that reformat for the device used, such as a phone or tablet.) Since responsive sites are de rigueur these days, I’d like to focus on your site’s accessibility…can it be accessed by people with disabilities? This includes screen readers and other technology. It’s not just a nice thing, it’s a civil law.
That carousel or image slider on your site looks beautiful. That stunning video on autoplay may have cost thousands to produce. Users with cognitive limitations, however, may not comprehend your information quickly enough before the view changes or your video ends. Other users may want to start over, or go back and review something they saw or heard.
The words in the tag should be more than a description. They should provide a text equivalent of the image. In other words, the tag should include the same meaningful information that other users obtain by looking at the image. In the example of the mayor’s picture, adding an “alt” tag with the words “Photograph of Mayor Jane Smith” provides a meaningful description.