what are broken links ?

Hello...
Broken links are links that lead to pages that do not exist. When clicking on a broken link, the page you land on is called a 404 error page, a standard HTTP response that indicates that the requested URL doesn't exist.
Thnx....

Broken links are links that are not properly linked to other websites.When links text are clicked,the page is not redirected to originally websites.They produce some errors.

Which are not show the right path which we are looking for.

SEO provide a full power of search in search engine. Many techniques used for build good ranking.

 dead link or dangling link that all are broken link in website.

Broken Link is a technique that involves pointing out a link on another website that is no longer working.

Hello,

A broken link is a link that doesn't work, often resulting in an error page. A broken link happens when the link points to a web page that has been deleted or moved.

SEO is a technique which is meant for optimizing websites to increase their visibility and rankings in search engines.

If you want to fix broken links in a  website, you may want to view these help pages:

http://www.microsystools.com/products/website-analyzer/help/find-broken-links-website/
http://www.microsystools.com/products/website-analyzer/help/website-analyze-links-checks/