It is read aloud to users by screen reader software, and it is indexed by search engines. When someone uses a screen reader to view documents, they will hear Alt Text; without Alt Text, they will only know they've reached a picture without knowing what the picture shows. Image Attributes Pro will generate image title, alt text, caption and description right when you upload the image. At the same time the image alt text is the most critical factor for ranking your images high on Google image search but it can also help your pages rank higher in Google web search. Alternative text for images is rule number one of web accessibility. In the image below, I have opened the Microsoft PowerPoint application, where must select the File tab in order to move to Backstage View. So an alternative text “Image of an apple” would be read aloud by a screen reader as “image, Image of an apple”. Rahul Saigal @ ... this is a game” box if prompted. Alt text in templates and galleries. Smaller pages download faster. This screenshot from the Apple Store shows a series of stock images of Apple products, like the iPad, the iPhone and the iPod shuffle. Text Alternatives for Images (alt-text) The single most important thing you can do to do to make a web page accessible is to include alternative text for images.
(Ideally, bullets and icons should be called up as background images through the CSS document - this would remove them from the HTML document completely and therefore remove the need for any ALT description.)
The longer your alt text, the more difficult it is be to read for text browsers. It can be tempting to write long sentences of alt text (a common keyword-stuffing practice that can incur SEO penalties), but keeping your alt tags short keeps your pages smaller. While the lack of appropriate alternative text is perhaps the biggest barrier to accessibility for screen reader users, I have noticed a tremendous increase in the use of alternative text and thus, general web accessibility, in recent years. Here are 8 tips on how to write ALT text: One of the most common pitfalls in enabling accessible content is the lack of alt text in the HTML attribute in the source. Note: The keyboard shortcut will only work if you have previously checked the “Yes, this is a game” box for this specific game. Alternative (Alt) Text is meant to convey the “why” of the image as it relates to the content of a document or webpage. Again, I’ve overlaid the ‘alt’ text and this shows that the designers have correctly used a blank ‘alt’ attribute for these images. While you can already capture your screen using your keyboard’s PrtScn button, you can now press Windows logo key + Shift + S to open the new modern snipping experience (also called the snipping bar), then drag the cursor over the area you want to capture. Screen readers would first announce this ALT text, and then the link text, so would then say the link twice, which obviously isn't necessary. Templates Many templates such as {} and {{Location map+}} have their own parameters for specifying alt text. It also displays on the page if the image fails to load, as in this example of a missing image. How to Take Screenshots in Windows 10. Galleries The
The sweet spot is between five and 15 words. When you write your ALT text, think about the person who needs it and the algorithm who reads it too.