If you have a website, I'm sure you’ve put a lot of hard work and long hours into making it a valuable resource for your visitors. But if your links aren't working, it can derail all of your hard work. Broken links on your website can be harmful in two ways:
They make for a bad user experience – When users click on links and reach dead-end 404 errors, they get frustrated and may never return.
They devalue your SEO efforts – Broken links restrict the flow of link equity throughout your site, which impacts rankings negatively.