Domain report: edpsciences.fr

Registration

info

.fr country-code · GANDI · expires 2027-06-16

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.fr is a country-code TLD (ccTLD)

Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.

#1
✓ TLD delegated and signed #2

.fr is delegated in the root zone and DNSSEC-signed.
✓ Expires on 2027-06-16 #3

The registration is valid until 2027-06-16 (237 days).
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No transfer lock

The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.

#4
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

warn

ns.edpsciences.org, ns2.edpsciences.org

Nameserver	Addresses	Network (AS)	Glue
ns.edpsciences.org	51.255.153.6 57.128.42.185	AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR	-
ns2.edpsciences.org	148.113.136.67 15.235.44.188	AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.edpsciences.org, ns2.edpsciences.org.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 4 IPv4 /24s and 0 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS16276 (OVH - OVH SAS, FR): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
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All nameserver names under .org

All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

#12
!

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

fail

3 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.edpsciences.org 51.255.153.6	NOERROR, 16 ms, authoritative	no	yes / yes	refused	9.20.15-1~deb13u1-Debian
ns.edpsciences.org 57.128.42.185	NOERROR, 16 ms, authoritative	no	yes / yes	refused	9.16.50-Debian
ns2.edpsciences.org 148.113.136.67	NOERROR, 95 ms, authoritative	no	yes / yes	refused	9.20.15-1~deb13u1-Debian
ns2.edpsciences.org 15.235.44.188	REFUSED, 96 ms, NOT authoritative	no	no / yes	refused	9.16.50-Debian

✓ All respond #14

All 4 nameserver addresses answered.
✗

Lame delegation

These nameservers don't answer authoritatively for the zone, so resolvers ignore them: ns2.edpsciences.org (15.235.44.188): REFUSED, authoritative=false.

#15
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns.edpsciences.org: "9.20.15-1~deb13u1-Debian"; ns.edpsciences.org: "9.16.50-Debian"; ns2.edpsciences.org: "9.20.15-1~deb13u1-Debian"; ns2.edpsciences.org: "9.16.50-Debian". Hide or replace the version string.

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✗

No DNS over TCP

DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns2.edpsciences.org (15.235.44.188): .

#19
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

pass

serial 2026101401 · primary ns.edpsciences.org

✓ Serial 2026101401 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 4h, retry 1h, expire 7d, negative TTL 5m.
✓ Primary is a public nameserver #24

The primary nameserver ns.edpsciences.org is one of the listed nameservers.
✓ Contact hostmaster@edpsciences.org #25

The SOA RNAME hostmaster.edpsciences.org means hostmaster@edpsciences.org.
✓ Date-based serial #26

The serial 2026101401 follows the YYYYMMDDnn convention (2026-10-14).

warn

Not signed

info

7 records at the apex

Type	Value	TTL
SOA	ns.edpsciences.org. hostmaster.edpsciences.org. 2026101401 14400 3600 604800 300	3600
NS	ns2.edpsciences.org.	3600
NS	ns.edpsciences.org.	3600
A	162.19.100.16	3600
MX	0 edpsciences-fr.mail.protection.outlook.com.	3600
TXT	"v=spf1 ip4:195.154.240.230 include:spf.protection.outlook.com ?all"	3600
TXT	"MS=ms79921359"	3600