Broken links are that link pages which does not exists. When anyone check those pages shows 404 error pages and the pages could not found. Some time we use many different links in web post, if we put invalid links by mistaken it will become broken link when visitor click it and showing 404 error. Another reason for making broken link we change permalink option so the previous links remain original to search engine. Remember that if you change permalinks then fix those links shortly. Broken links are not helpful for website. When a visitor enter into a broken page and watch 404 error he leaves quickly and search another way. So this a bad impact of website owner. So question is how to fix broken link.
Broken links effect in your search engine optimization. It has important role getting page rank. 404 error effects very bad to a website. So keep it mind that if you want to get good page rank then you have to check your sites broken links and fix it.
How to fix broken links on wordpress
There two ways to check and fix broken link.
1. Using plugin. But using plugin is not so good because it increases page loading time. If you are unable to do manually then do with the process.
2. Second process is manual. Open an account in Google webmaster tool. Login to Google webmaster tools then click on health then check crawl errors and fix.
First way using a wordpress plugin which is broken link checker. The plugin automatically detect the broken links. It has some good option to fix the links. Download broken links checker plugin. Install and go to wordpress panel. Click on broken link form tools option. You will get the page of broken links. There are many options there. I suggest you first try to fix broken links. Generally some links should be fixed a little number. Then trash all the broken links. In this way you can check broken links and fix those links.