generated: '2026-10-09' method: probed source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts hosts: - host: www.cesnet.cz https: true tls_version: TLSv1.3 cert_expires: Feb 20 12:54:55 2027 GMT hsts: true hsts_max_age: 31536000 domains: - domain: cesnet.cz dnssec: true caa: - 0 issue "postsignum.cz" - 0 issuemail "harica.gr" - 0 issuewild "harica.gr" - 0 iodef "mailto:abuse@cesnet.cz" - 0 issue "harica.gr" - 0 issue "letsencrypt.org" spf: true dmarc: true dmarc_policy: quarantine