Links to web content form the backbone of websites. Those links can potentially be a barrier to accessibility. Links must be ALT tagged so a screen reader will notify the user of the links presence and destination. Links should be truncated if possible to a meaningful URL. If a screen reader is reading out a string of characters the user will get frustrated, confused, and will waste time listening to each character as it is read.

WebAIM link tips are here.

W3C Link standards are here.