Links are maybe the main feature on web sites.They constitute the mean of transport between pages and guide the user to certain addresses without the user knowing the actual address itself.Linkage testing is divided into three sub areas.
First - check that the link takes you to the page it said it would.
Second - That the link isn't broken that is that the page you're linking to exists.
Third - Ensure that you have no orphan pages at your site. An orphan page is a page that has no links to it,and may therefore only be reached if you know the correct URL.
Remember that to reduce redundant testing,there is no need to test a link more than once to a specific page if it appears on several pages;it needs only to be tested once.
This kind of test can preferably be automated and several tools provide solutions for this.
Link testing should be done during integration testing. When connections between pages subsist.
Important Tips:
1.Verify that you end up at the designated page
2. Verify that the link isn't broken
3. Locate orphan pages if present




