HTTP Status Memes

503
503

Service Unavailable

Description

The HTTP 503 Service Unavailable server error response code indicates that the server is not ready to handle the request.

Common causes are a server that is down for maintenance or that is overloaded. This response should be used for temporary conditions and the Retry-After HTTP header should, if possible, contain the estimated time for the recovery of the service.

Caching-related headers that are sent along with this response should be taken care of, as a 503 status is often a temporary condition and responses shouldn't usually be cached.

See Also

Source: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/503