Pos Malaysia

The domain has at least one IPv6 address (AAAA DNS record).

✓ 2600:1411:a000:e::172d:b00a, 2600:1411:a000:e::172d:b021

The IPv6 addresses are publicly routable — not link-local, ULA, loopback or documentation ranges.

✓ All addresses are globally routable.

Website reachable on port 80 when connecting via IPv6.

✓ HTTP (port 80) responds over IPv6 — 42ms TTFB.

Website reachable on port 443 when connecting via IPv6.

✓ HTTPS (port 443) responds over IPv6 — 45ms TTFB.

Website responds when connected exclusively over IPv6, with no IPv4 fallback. Simulates what happens when IPv4 is turned off.

✓ Site is fully reachable via IPv6-only.

The SSL/TLS certificate is valid, not expired, and matches the domain when connected via IPv6.

✓ Certificate valid — issued by C = US, O = DigiCert Inc, CN = DigiCert Global G3 TLS ECC SHA384 2020 CA1, expires Nov 12 23:59:59 2026 GMT

The domain has both A and AAAA records for backwards compatibility during the IPv6 transition.

✓ Domain has both A and AAAA records.

Server advertises HTTP/3 support via the Alt-Svc: h3 header.

✓ Alt-Svc: h3 header detected.

At least one authoritative nameserver has an IPv6 address (AAAA record).

✓ Nameserver has IPv6 address.

Authoritative nameserver accepts TCP connections on port 53 over IPv6.

✓ Nameserver is reachable via IPv6 on port 53.

Nameserver actually resolves DNS queries when asked over IPv6 — not just TCP open, but functionally answering.

✓ DNS queries answered over IPv6.

Full DNSSEC chain-of-trust validation passes. Prevents DNS cache poisoning and spoofing.

✓ DNSSEC fully validated.

A PTR record exists in ip6.arpa for the IPv6 address. Important for email delivery and network diagnostics.

✓ PTR record found in ip6.arpa.

Delegation Signer record exists in the parent zone.

✓ DS record found at parent zone.

RRSIG signatures are present and not expired.

✓ RRSIG signatures are current and valid.

The cryptographic algorithm used for DNSSEC signing.

RSASHA512

The domain has at least one MX (Mail Exchange) DNS record pointing to a mail server.

✓ MX record found.

The highest-priority MX server resolves to an IPv6 address (AAAA record).

✓ MX server has AAAA record.

A TXT record with v=spf1 exists, declaring which servers may send email for this domain.

✓ SPF record found.

A DKIM public key is published at a common selector, enabling email signature verification.

DKIM selector found: selector1._domainkey

A DMARC policy record exists at _dmarc.<domain>, enabling email authentication reporting.

✓ DMARC record found.

The domain has at least one IPv4 address (A DNS record).

✓ 23.62.212.39, 23.62.212.40

Website reachable on port 80 when connecting via IPv4.

✓ HTTP (port 80) responds over IPv4 — 33ms TTFB.

Website reachable on port 443 when connecting via IPv4.

✓ HTTPS (port 443) responds over IPv4 — 36ms TTFB.