◆Error Codes Wiki

Every Error Code, Explained

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HTTP Status Codes

90 items

Windows Error Codes

72 items

Mac Error Codes

36 items

Linux Error Codes

43 items

Printer Error Codes

37 items

Browser Errors

32 items

Most Popular

http-200-okInformational

HTTP 200 OK — What It Means & How to Fix It

http-301-moved-permanentlyWarning

HTTP 301 Moved Permanently — What It Means & How to Fix It

http-302-foundWarning

HTTP 302 Found — What It Means & How to Fix It

http-400-bad-requestError

HTTP 400 Bad Request — What It Means & How to Fix It

http-401-unauthorizedError

HTTP 401 Unauthorized — What It Means & How to Fix It

http-403-forbiddenError

HTTP 403 Forbidden — What It Means & How to Fix It

http-404-not-foundError

HTTP 404 Not Found — What It Means & How to Fix It

http-405-method-not-allowedError

HTTP 405 Method Not Allowed — What It Means & How to Fix It

http-408-request-timeoutError

HTTP 408 Request Timeout — What It Means & How to Fix It

http-429-too-many-requestsError

HTTP 429 Too Many Requests — What It Means & How to Fix It

http-500-internal-server-errorCritical

HTTP 500 Internal Server Error — What It Means & How to Fix It

http-502-bad-gatewayCritical

HTTP 502 Bad Gateway — What It Means & How to Fix It

http-503-service-unavailableCritical

HTTP 503 Service Unavailable — What It Means & How to Fix It

http-504-gateway-timeoutCritical

HTTP 504 Gateway Timeout — What It Means & How to Fix It

http-103Informational

HTTP 103 Early Hints — Preload Resources

http-201Informational

HTTP 201 Created — Resource Successfully Created

http-204Informational

HTTP 204 No Content — Success with Empty Body

http-302Warning

HTTP 302 Found — Temporary Redirect Explained

http-304Warning

HTTP 304 Not Modified — Browser Cache Still Valid

http-307Warning

HTTP 307 Temporary Redirect — Method Preserved