What Is a 404 Error?
A 404 (Not Found) error occurs when a server cannot find the requested URL. This happens when a page has been deleted, a URL is misspelled, or a link points to a non-existent page. The server returns a 404 status code and typically displays a "page not found" error page to the user.
Why 404 Errors Matter for SEO
A few 404 errors are normal and not harmful. However, important pages returning 404 means lost traffic, lost link equity, and poor user experience. Pages with inbound links that 404 waste the equity those links provide. A sudden spike in 404 errors (after a migration or deployment) signals a serious problem that needs immediate attention.
How to Find and Fix 404 Errors
Monitor 404 errors in Google Search Console, server logs, and by crawling your site with CrawlBeast. Fix by either restoring the missing page or implementing a 301 redirect to a relevant alternative. Create a helpful custom 404 page that guides users back to working content. Analyze 404 patterns in LogBeast to catch issues early.
📖 Related Article: Finding and Fixing 404 Errors — Read our in-depth guide for practical examples and advanced techniques.
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