If I go there it takes me to cuidadodesalud.gov/es.
If I go to cuidadodesalud.gov/en it takes me to cuidadodesalud.gov/es/en which gives an error 404 saying it cannot find the page 'https://cuidadodesalud.gov/es/en' in HealthCare.gov.
It doesn't make much sense to redirect to a different domain name and append the '/es'