       Boulder-Requester:       - '000000'       Link:       - <https://acme-staging.api.letsencrypt.org/acme/authz/00OZWvTewlUC00b00mXrF0xJCEfzRPseCeoDRVlziTs>;rel="up"       Location:       - https://acme-staging.api.letsencrypt.org/acme/challenge/00OZWvTewlUC00b00mXrF0xJCEfzRPseCeoDRVlziTs/00000000     