Broken Links (404 Errors) for Beginners: The 5-Minute Primer

If you've never touched broken links (404 errors) before, here's the version without the jargon.

A broken internal link doesn't just frustrate one visitor — it's a dead end for crawlers too, cutting off the flow of link equity to whatever page it used to lead to.

You don't need to understand everything about it on day one. Start with just this: prioritize fixing internal broken links first — they're fully within your control and directly affect crawl efficiency across your own site.

The most common beginner mistake is skipping it entirely because it sounds technical. It usually isn't — broken links (404 errors) is one of those things that looks intimidating from the outside and takes ten minutes once you actually sit down with it.

Once this feels comfortable, ecommerce keyword research is a natural next thing to learn.

Broken Link Checker is the fastest way to see it in action on a real page.

Everything in this guide runs directly in your browser — no signup, no install.