lapperre.be

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns4-09.azure-dns.info: "Knot DNS 3.1.2.1770717641.d6b376aff". Hide or replace the version string.

SOA · The nameservers serve different versions of the zone: 1 on ns-1188.awsdns-20.org (205.251.196.164), ns-1188.awsdns-20.org (2600:9000:5304:a400::1), ns-1786.awsdns-31.co.uk (205.251.198.250), ns-1786.awsdns-31.co.uk (2600:9000:5306:fa00::1), ns-381.awsdns-47.com (205.251.193.125), ns-381.awsdns-47.com (2600:9000:5301:7d00::1), ns-772.awsdns-32.net (205.251.195.4), ns-772.awsdns-32.net (2600:9000:5303:400::1); 2021040716 on ns1-09.azure-dns.com (13.107.236.9), ns1-09.azure-dns.com (2603:1061:0:700::9), ns2-09.azure-dns.net (150.171.21.9), ns2-09.azure-dns.net (2620:1ec:8ec:700::9), ns3-09.azure-dns.org (204.14.183.9), ns3-09.azure-dns.org (2a01:111:4000:700::9), ns4-09.azure-dns.info (208.84.5.9), ns4-09.azure-dns.info (2620:1ec:bda:700::9). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.

SOA · negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 1000h, negative TTL 2d.

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 (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 2d; resolvers may use either.

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

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

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.