Domain report: cnrs-gif.fr

Registration

info

.fr country-code · GIP RENATER · expires 2026-12-31

TLD: .fr (country-code)
ICANN policies apply: no
Registrar: GIP RENATER
Registered: 31 December 1994
Last changed: 31 January 2026
Expires: 31 December 2026
Status: active
Registry nameservers: hermes.cnrs-gif.fr, ns4.cnrs.fr, themis.regif.cnrs-gif.fr
RDAP server: https://rdap.nic.fr/

i

.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 2026-12-31 #3

The registration is valid until 2026-12-31 (70 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.

info

hermes.cnrs-gif.fr, ns4.cnrs.fr, themis.regif.cnrs-gif.fr

Nameserver	Addresses	Network (AS)	Glue
hermes.cnrs-gif.fr	157.136.10.1	AS2200 FR-RENATER - Renater, FR	157.136.10.1
ns4.cnrs.fr	195.220.197.11 2001:660:500a:2210::11	AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR	-
themis.regif.cnrs-gif.fr	157.136.10.2	AS2200 FR-RENATER - Renater, FR	157.136.10.2

✓ 3 nameservers #6

Delegated to hermes.cnrs-gif.fr, ns4.cnrs.fr, themis.regif.cnrs-gif.fr.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: hermes.cnrs-gif.fr, themis.regif.cnrs-gif.fr.
✓ 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 2 IPv4 /24s and 1 IPv6 /48.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, 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 .fr

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
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Partly IPv6

These nameservers have no IPv6 address: hermes.cnrs-gif.fr, themis.regif.cnrs-gif.fr.

#13

warn

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
hermes.cnrs-gif.fr 157.136.10.1	NOERROR, 15 ms, authoritative	no	yes / yes	refused	9.20.29-1~deb13u1-Debian
ns4.cnrs.fr 195.220.197.11	NOERROR, 17 ms, authoritative	no	yes / yes	refused	SECRET
ns4.cnrs.fr 2001:660:500a:2210::11	NOERROR, 19 ms, authoritative	no	yes / yes	refused	SECRET
themis.regif.cnrs-gif.fr 157.136.10.2	NOERROR, 15 ms, authoritative	no	yes / yes	refused	9.20.29-1~deb13u1-Debian

✓ All respond #14

All 4 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ 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: hermes.cnrs-gif.fr: "9.20.29-1~deb13u1-Debian"; themis.regif.cnrs-gif.fr: "9.20.29-1~deb13u1-Debian". Hide or replace the version string.

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

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

All nameserver addresses are publicly routable.

warn

serial 2026042804 · primary hermes.cnrs-gif.fr

✓ Serial 2026042804 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

refresh 6m is outside 20m–1d; retry 15m should be shorter than refresh 6m; negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 6m, retry 15m, expire 1000h, negative TTL 2d.

#23
✓ Primary is a public nameserver #24

The primary nameserver hermes.cnrs-gif.fr is one of the listed nameservers.
✓ Contact informatique@dr4.cnrs.fr #25

The SOA RNAME informatique.dr4.cnrs.fr means informatique@dr4.cnrs.fr.
✓ Date-based serial #26

The serial 2026042804 follows the YYYYMMDDnn convention (2026-04-28).

warn

Not signed

warn

6 records at the apex

Type	Value	TTL
SOA	hermes.cnrs-gif.fr. informatique.dr4.cnrs.fr. 2026042804 360 900 3600000 172800	180
NS	hermes.cnrs-gif.fr.	180
NS	themis.regif.cnrs-gif.fr.	180
NS	ns4.cnrs.fr.	180
TXT	"v=spf1 ip4:157.136.10.0/25 ~all"	180
TXT	"HARICA-eeBmW2BjgNNvfMQtGCw"	180