503 Errors and Retry-After

Suppose the pages that Google is requesting still need to be translated. In that case, the 503 error should be served up and will trigger a GL Web translation. The HTTP status code 503, “503 error” for short, indicates that the server is temporarily unavailable and will be available again later. The retry-after value for the 503 error should be a value that gives us time to present the page in the requested language.