bayreuther-festspiele.de

Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns1.tmt.de (glue 145.239.31.235, zone 145.239.31.235, 2001:41d0:601:2000::1bcc). Update the glue at your registrar.

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns0.tmt.de: "9.18.49-1~deb12u2-Debian"; ns1.tmt.de: "9.18.49-1~deb12u2-Debian"; ns2.tmt.de: "9.18.49-1~deb12u2-Debian"; ns3.tmt.de: "9.18.49-1~deb12u2-Debian"; ns5.tmt.de: "9.18.49-1~deb12u2-Debian". Hide or replace the version string.

DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (2m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 10m; resolvers may use either.

DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.

DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

MX · The following MX hosts could not be resolved to IPv6 addresses: d202444.a.ess.uk.barracudanetworks.com, d202444.b.ess.uk.barracudanetworks.com

DMARC · DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...

TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.