Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[4] 2/2/2 [M]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 4/4/4 · IPv6 2/2/2 · location M
| Host | IPv4 | IPv6 | Probes |
|---|
ns1.renater.fr [O] |
193.49.159.2 |
2001:660:3001:4002::2 |
ipv4 193.49.159.2 ok; ipv6 2001:660:3001:4002::2 ok; |
bakanik.univ-antilles.fr [I] |
193.51.134.2 |
— |
ipv4 193.51.134.2 ok; |
ns2.renater.fr [O] |
193.49.159.9 |
2001:660:3001:4002::9 |
ipv4 193.49.159.9 ok; ipv6 2001:660:3001:4002::9 ok; |
soleil.uvsq.fr [O] |
193.51.24.1 |
— |
ipv4 193.51.24.1 ok; |
📌 Action item(s):
- Publish AAAA records for name server: bakanik.univ-antilles.fr, soleil.uvsq.fr.
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 |
|---|
mxc.relay.renater.fr [O] |
85.31.212.203 |
— |
ipv4 85.31.212.203 ok; |
mxb.relay.renater.fr [O] |
85.31.212.3 |
— |
ipv4 85.31.212.3 ok; |
mxd.relay.renater.fr [O] |
85.31.212.203 |
— |
ipv4 85.31.212.203 ok; |
mxa.relay.renater.fr [O] |
85.31.212.3 |
— |
ipv4 85.31.212.3 ok; |
📌 Action item(s):
- Publish AAAA records for mail (MX): mxa.relay.renater.fr, mxb.relay.renater.fr, mxc.relay.renater.fr, mxd.relay.renater.fr.
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 |
|---|
univ-antilles.fr [I] |
195.83.214.67 |
— |
ipv4 ok; |
📌 Action item(s):
- Publish AAAA records for web host: univ-antilles.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.univ-antilles.fr (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.univ-antilles.fr:
v=DMARC1; p=quarantine; rua=mailto:dsin-dmarc@univ-antilles.fr; ruf=mailto:dsin-dmarc@univ-antilles.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.