If you have any links on your site going to other websites, it’s important to make sure those sites are still active. Otherwise, you’ll have “dead links” which are irritating to your visitors and, potentially, to your ranking. It’s easy to check for broken links. If you only have a few, just follow the links yourself to make sure they’re still good. If you want to do it in one step and make sure you’re not missing anything, go to the Online Broken Link Checker and enter your URL in the field. You’ll get a list of broken links if you have any, which you can then delete or modify them on your site.