generated: '2026-08-26' method: probed source: live DNS/TLS/HTTP probes of prenda.com and its www/help/discover/microschools hosts hosts: - host: www.prenda.com https: true tls_version: TLSv1.3 cert_expires: Nov 11 00:37:39 2026 GMT hsts: false - host: help.prenda.com https: true tls_version: TLSv1.3 cert_expires: Nov 13 07:15:57 2026 GMT hsts: true hsts_max_age: 31536000 - host: discover.prenda.com https: true tls_version: TLSv1.3 cert_expires: Nov 3 01:05:38 2026 GMT hsts: true hsts_max_age: 63072000 - host: microschools.prenda.com https: true tls_version: TLSv1.3 cert_expires: Oct 28 00:35:02 2026 GMT hsts: true hsts_max_age: 63072000 domains: - domain: prenda.com dnssec: false caa: [] spf: true dmarc: false note: Prenda publishes no API, so there are no OpenAPI servers[] hosts to probe; these are the four live web hosts on prenda.com. www.prenda.com (Webflow) serves no HSTS header while help/discover/microschools all do. prenda.com has SPF but NO DMARC record at _dmarc.prenda.com (NXDOMAIN on TXT), no DNSSEC and no CAA records.