Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[8] 8/8/8 [O]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 8/8/8 · IPv6 8/8/8 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
pdns72.ultradns.co.uk [O] |
156.154.69.72 |
2610:a1:1017::6c |
ipv4 156.154.69.72 ok; ipv6 2610:a1:1017::6c ok; |
pdns72.ultradns.info [O] |
156.154.68.72 |
2610:a1:1016::6c |
ipv4 156.154.68.72 ok; ipv6 2610:a1:1016::6c ok; |
pdns72.ultradns.org [O] |
156.154.67.72 |
2001:502:4612::6c |
ipv4 156.154.67.72 ok; ipv6 2001:502:4612::6c ok; |
udns1.ultradns.net [O] |
204.69.234.1 |
2001:502:f3ff::d |
ipv4 204.69.234.1 ok; ipv6 2001:502:f3ff::d ok; |
pdns72.ultradns.net [O] |
156.154.65.72 |
2610:a1:1014::6c |
ipv4 156.154.65.72 ok; ipv6 2610:a1:1014::6c ok; |
pdns72.ultradns.biz [O] |
156.154.66.72 |
2610:a1:1015::6c |
ipv4 156.154.66.72 ok; ipv6 2610:a1:1015::6c ok; |
pdns72.ultradns.com [O] |
156.154.64.72 |
2001:502:f3ff::6c |
ipv4 156.154.64.72 ok; ipv6 2001:502:f3ff::6c ok; |
udns2.ultradns.net [O] |
204.74.101.1 |
2610:a1:1014::d |
ipv4 204.74.101.1 ok; ipv6 2610:a1:1014::d ok; |
Mail
IPv4-only
[2 MX] v4 smtp 2/2/2 v6 smtp 0/0/0 [O]
Meaning: Shows MX footprint and SMTP health per IP family. Operational means an SMTP banner and EHLO exchange succeeded on port 25.
IPv4 SMTP 2/2/2 · IPv6 0/0/0 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
mxb-0041d202.gslb.pphosted.com [O] |
205.220.172.223 |
— |
ipv4 205.220.172.223 ok; |
mxa-0041d202.gslb.pphosted.com [O] |
205.220.160.224 |
— |
ipv4 205.220.160.224 ok; |
📌 Action item(s):
- Publish AAAA records for mail (MX): mxa-0041d202.gslb.pphosted.com, mxb-0041d202.gslb.pphosted.com.
Web
IPv4-only
[1] 0/0/0 [I]
Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.
IPv4 1/1/1 · IPv6 0/0/0 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
www.central-bank.org.tt [I] |
51.222.85.35 |
— |
ipv4 ok; |
📌 Action item(s):
- Publish AAAA records for web host: www.central-bank.org.tt.
DNSSEC
Unsigned
U/-/-
Meaning: Shows whether DNSKEY data is observed at the apex (signed), absent (unsigned), or unavailable due to lookup error.
Apex DNSKEY presence only — not full chain validation.
Analyze on DNSViz
📌 Action item(s):
- Enable DNSSEC signing and publish a DNSKEY at the apex. Use DNSViz to validate the full chain.
DMARC
p=quarantine
p=quarantine — published organizational policy. Ask receivers to quarantine failing mail; reject is stronger.
Meaning: Published DMARC policy at _dmarc.central-bank.org.tt (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.central-bank.org.tt:
v=DMARC1;p=quarantine;pct=100;rua=mailto:9d87053d99@rua.easydmarc.com;ruf=mailto:9d87053d99@ruf.easydmarc.com;fo=1
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian
📌 Action item(s):
- Tighten DMARC toward p=reject when ready. Review on dmarcian.