A 404 page is the error message that appears when a visitor requests a URLthat nolonger exists. The 404 status code means “not found”.A well-designed 404 page neatly captures that visitor and helps them along, instead of letting them leave with a dead-end experience. Why do 404 errors occur?404s are caused by deleted pages, changed URLs

without a redirect or

typos in links. Occasional 404s are normal, but many broken links hurt the user experience and can waste crawl budget. Creating a good 404 page Show a friendly notification, yourcrawlingand a search

function, and refer to

popular pages or the homepage. This is how you keep the visitor on your site. Important: A real 404 page must also return the 404 status code.404 vs redirect If a page has been permanently moved, use a 301 redirect to the new URL

instead of sending

visitors to a 404.If there is no relevant301 and 302 redirectthen a 404 (or 410) is correct. Are 404 errors bad for SEO?A few is normal and not a problem. Many 404s on important pages are;solve that with redirects or recovery. How do I find 404s on my site? Via Google

Search Console and with crawling

tools that detect broken links.