500 Internal Server Error
A 500 Internal Server Error is a critical HTTP status code indicating that the server encountered an unexpected condition that prevented it from fulfilling the request. This is not a page-level issue; it is a catastrophic infrastructure failure. If Googlebot encounters repeated 500 errors when attempting to crawl a site, it assumes the server cannot handle the load and will drastically throttle the site’s crawl rate. Prolonged 500 errors lead to rapid, widespread de-indexing. Resolving server-side errors requires immediate intervention at the hosting and database level.
500 Internal Server Error Simplified
A 500 error means your website’s server completely crashed. The page might exist, but the computer hosting your website is broken and cannot show it to anyone. If Google sees this too often, it will drop your entire website from its search results.