generated: '2026-07-27' method: probed source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts hosts: - host: www.torontohydro.com https: true tls_version: TLSv1.3 cert_expires: Sep 23 06:32:21 2026 GMT hsts: true hsts_max_age: 157680000 - host: sandbox.greenbuttonalliance.org https: true tls_version: TLSv1.3 cert_expires: Sep 28 20:26:53 2026 GMT hsts: null note: >- servers[] host of the harvested Green Button Alliance OpenAPI in this repo. Not a Toronto Hydro host. - host: torontoonboarding.savagedata.com https: true tls_version: TLSv1.2 cert_expires: Nov 17 14:06:38 2026 GMT hsts: true hsts_max_age: 2592000 server: Microsoft-IIS/10.0 probed_manually: true note: >- Added by hand because the host is carried as DeveloperPortal/SignUp rather than Website, so the automated host collector did not reach it. This is the third-party Green Button onboarding application Toronto Hydro links to from its public Green Button page, operated by its platform vendor Savage Data Systems. It negotiates TLSv1.2 only (no TLSv1.3) and advertises a 30-day HSTS max-age — a weaker posture than Toronto Hydro's own www host, on the surface a developer must actually use. domains: - domain: torontohydro.com dnssec: false caa: [] spf: true dmarc: true dmarc_policy: none - domain: greenbuttonalliance.org dnssec: false caa: [] spf: true dmarc: true dmarc_policy: reject - domain: savagedata.com dnssec: false caa: [] spf: true dmarc: true dmarc_policy: quarantine probed_manually: true note: Platform vendor domain hosting Toronto Hydro's Green Button third-party onboarding application.