If you frequent links but want to be sure that they are safe and virus-free, Dr. Web Link Checker for Google Chrome can help you check links for viruses.
A broken link is a killer for any website and it should be eliminated at all cost. The bad thing is, it is easily said than done. If you are running a website with more than a thousand articles and every post contains at least 3 links, how are you able to find out which particular link is no longer working?