Why are 404 pages a problem?

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UFO that kidnaps a cow and a PC404 pages are always a dead end, both for users and search engine crawlers. And landing in a dead end is frustrating. That's why 404 pages are bad for usability and therefore also for your site's user experience and user signals .

Many 404 pages can negatively impact your rankings . Google, the el salvador cell phone number list most widely used search engine, is now paying particular attention to user signals. Google's goal is to provide its users with the best possible answer to their search queries. Pages that leave users frustrated and lost in dead ends don't count.

That's why you should check your site regularly and fix 404 errors.
What are 404 pages?
Where does error 404 come from?
Why are 404 pages a problem?