Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
IPv4-only
[8] 2/0/0 [M]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 2/2/2 · IPv6 2/0/0 · location M
| Host | IPv4 | IPv6 | Probes |
|---|
ns3.comstbarth.fr [I] |
185.212.75.3 |
2620:139:7000::53:3 |
ipv4 185.212.75.3 ok; ipv6 2620:139:7000::53:3 timeout; |
ns2.comstbarth.fr [I] |
185.212.75.2 |
2620:139:7000::53:2 |
ipv4 185.212.75.2 ok; ipv6 2620:139:7000::53:2 timeout; |
ns5.he.net [O] |
— |
— |
|
ns3.he.net [O] |
— |
— |
|
ns2.he.net [O] |
— |
— |
|
ns1.comstbarth.fr [I] |
— |
— |
|
ns6.gandi.net [O] |
— |
— |
|
ns4.he.net [O] |
— |
— |
|
📌 Action item(s):
- IPv6 2620:139:7000::53:3 on name server ns3.comstbarth.fr failed (timeout) — check firewall, routing, and service.
- IPv6 2620:139:7000::53:2 on name server ns2.comstbarth.fr failed (timeout) — check firewall, routing, and service.
Mail
IPv4-only
[4 MX] v4 smtp 4/4/4 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 4/4/4 · IPv6 0/0/0 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
vade-mx-fr02.hornetsecurity.com [O] |
94.100.138.100 |
— |
ipv4 94.100.138.100 ok; |
vade-mx-fr01.hornetsecurity.com [O] |
94.100.138.100 |
— |
ipv4 94.100.138.100 ok; |
vade-mx-eu-fallback01.hornetsecurity.com [O] |
94.100.132.8 |
— |
ipv4 94.100.132.8 ok; |
vade-mx-eu-fallback02.hornetsecurity.com [O] |
94.100.132.8 |
— |
ipv4 94.100.132.8 ok; |
📌 Action item(s):
- Publish AAAA records for mail (MX): vade-mx-eu-fallback01.hornetsecurity.com, vade-mx-eu-fallback02.hornetsecurity.com, vade-mx-fr01.hornetsecurity.com, vade-mx-fr02.hornetsecurity.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.comstbarth.fr [I] |
135.125.123.197 |
— |
ipv4 ok; |
📌 Action item(s):
- Publish AAAA records for web host: www.comstbarth.fr.
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.comstbarth.fr (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.comstbarth.fr:
v=DMARC1; p=quarantine; rua=mailto:rua.dmarcemail@comstbarth.fr; 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.