All technologies that contain links.
This technique relates to Success Criterion 2.4.4: Link Purpose (In Context) (Sufficient).
The objective of this technique is to identify the purpose of a link from the link and its sentence context. The sentence enclosing the link provides context for an otherwise unclear link. The description lets a user distinguish this link from links in the Web page that lead to other destinations and helps the user determine whether to follow the link. Note that simply providing the URI of the destination is generally not sufficiently descriptive.
These descriptions will be most useful to the user if the additional information needed to understand the link precedes the link. If the additional information follows the link, there can be confusion and difficulty for screen reader users who are reading through the page in order (top to bottom).
A Web page contains the sentence "To advertise on this page, click here."
Although the link phrase 'click here' is not sufficient to understand the link, the information needed precedes the link in the same sentence.
In the news summary containing the sentence "The Smallville Times reports that the School Board chose a 2007 school calendar that starts on August 27.", the words "reports that" are a link to an article in the Smallville Times about the School Board meeting.
Although this example satisfies the Success Criterion, putting information needed to understand the link after the link in this way is awkward for those who are reading through the document with a screen reader.
For each link in the content that uses this technique:
- Check that the link is part of a sentence
- Check that text of the link combined with the text of its enclosing sentence describes the purpose of the link
- The above checks are true.