The link letters should indicate what the link destination is. In many cases, users of screen readers read sentences by following only links with tab key press alone. In such cases, however, each link letters are not unique and "read more" or "detailed information here" If it is, it will become difficult to grasp what the link destination is.
However, in 2.4.4 it is considered good to provide link letters depending on the context. For example, when the content of books is provided in HTML, PDF, MP3, only the first HTML contains the title of the book in the link letters, but it is considered good to read "PDF" "MP3".
Also, if it is within the same paragraph , even so-called "here link" is also allowed, but for "here link" it is better not to use it much.
It is not a fatal barrier and there is no regulation in the standard, but if the link destination is a downloading file such as PDF, it is a file and the size of the file is written together, who It will be useful as well.
In the first place, if the link is broken due to the loss of the link destination etc. (It may not be a question to be touched in the accessibility context), let's improve it because it is hard to use.
|Principle||Operable||User interface components and navigation must be operable.|
|Guideline||Navigable||Provide ways to help users navigate, find content, and determine where they are.|
|Criterion||Link Purpose (In Context)
|The purpose of each link can be determined from the text of the link alone, or from the text of the link and the context of the program which can be interpreted programmatically. However, excluding cases where the purpose of the link is ambiguous to most users.|