Broken link are those links that doesn't work . these links are also called dead link. but these link are harmful foe seo point of view
Broken links are bad for visitors because they give the impression that your site is not well maintained. They are also bad for your search engine rankings because search engine spiders will stop crawling your pages if they find a broken link.
Broken link is a link that doesn't work, often shows error page. A broken link happens when the link points to a web page that has been deleted or moved. You can check these link through webmaster. And remove them as soon as you can because broken links effect your ranking.
A link may become broken for several reasons. The most common result of a dead link is a 404 error, which indicates that the web server responded, but the specific page could not be found.
You can check your website through Google webmaster tools to find out the broken links in your site. Thanks !!
Broken links means that are unable to open while browsing.. and you can find these broken link from broken link checker tools like http://www.brokenlinkcheck.com/ or W3C Validator.
Broken link: A link which is hyper to any pages, but not working, you can get those by web master tool.