Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[2] 6/6/6 [O]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 6/6/6 · IPv6 6/6/6 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
stan.ns.cloudflare.com [O] |
108.162.193.235, 173.245.59.235, 172.64.33.235 |
2a06:98c1:50::ac40:21eb, 2803:f800:50::6ca2:c1eb, 2606:4700:58::adf5:3beb |
ipv4 108.162.193.235 ok; ipv4 173.245.59.235 ok; ipv4 172.64.33.235 ok; ipv6 2a06:98c1:50::ac40:21eb ok; ipv6 2803:f800:50::6ca2:c1eb ok; ipv6 2606:4700:58::adf5:3beb ok; |
fiona.ns.cloudflare.com [O] |
172.64.32.157, 108.162.192.157, 173.245.58.157 |
2a06:98c1:50::ac40:209d, 2803:f800:50::6ca2:c09d, 2606:4700:50::adf5:3a9d |
ipv4 172.64.32.157 ok; ipv4 108.162.192.157 ok; ipv4 173.245.58.157 ok; ipv6 2a06:98c1:50::ac40:209d ok; ipv6 2803:f800:50::6ca2:c09d ok; ipv6 2606:4700:50::adf5:3a9d ok; |
Mail
Dual-stack
[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [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 4/4/4 · IPv6 4/4/4 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
cbvs-sr.mail.protection.outlook.com [O] |
52.101.41.28, 52.101.194.158, 52.101.60.71, 52.101.10.5 |
2a01:111:f403:f802::1, 2a01:111:f403:f803::1, 2a01:111:f403:f901::2, 2a01:111:f403:f802::2 |
ipv4 52.101.41.28 ok; ipv4 52.101.194.158 ok; ipv4 52.101.60.71 ok; ipv4 52.101.10.5 ok; ipv6 2a01:111:f403:f802::1 ok; ipv6 2a01:111:f403:f803::1 ok; ipv6 2a01:111:f403:f901::2 ok; ipv6 2a01:111:f403:f802::2 ok; |
Web
IPv4-only
[1] 2/2/0 [I]
Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.
IPv4 2/2/0 · IPv6 2/2/0 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
cbvs.sr [I] |
172.67.210.106, 104.21.45.59 |
2606:4700:3033::ac43:d26a, 2606:4700:3035::6815:2d3b |
ipv4 http_5xx; ipv6 http_5xx; |
📌 Action item(s):
- IPv6 probe for web host cbvs.sr failed (http_5xx) — check firewall, routing, and service.
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=none, sp=reject
p=none, sp=reject — published organizational policy. Monitoring only (receivers should not reject mail); tighten toward quarantine, then reject when ready. Not the same as missing DMARC.
Meaning: Published DMARC policy at _dmarc.cbvs.sr (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.cbvs.sr:
v=DMARC1; p=none; aspf=r; sp=reject;
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian
📌 Action item(s):
- DMARC is monitoring-only (p=none). Move toward quarantine, then reject. Review on dmarcian.