ipsl.fr

Checked 22 October 2026, 03:32 UTC · via 8.8.8.8
✗Problems found
23 passed 2 warnings 1 failed 5 info

Registration

info

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

Found

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
balsa.ipsl.fr, dns.ipsl.jussieu.fr, hermes.cnrs-gif.fr
RDAP server
https://rdap.nic.fr/

Checks

  • 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).
  • i
    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.

Delegation

info

balsa.ipsl.fr, dns.ipsl.jussieu.fr, hermes.cnrs-gif.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
balsa.ipsl.fr, dns.ipsl.jussieu.fr, hermes.cnrs-gif.fr
NS in the zone
balsa.ipsl.fr, dns.ipsl.jussieu.fr, hermes.cnrs-gif.fr
NameserverAddressesNetwork (AS)Glue
balsa.ipsl.fr194.254.40.1 2001:660:3023:1::1AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR194.254.40.1 2001:660:3023:1::1
dns.ipsl.jussieu.fr134.157.176.1AS1307 UNSPECIFIED - Renater, EU-
hermes.cnrs-gif.fr157.136.10.1AS2200 FR-RENATER - Renater, FR157.136.10.1

Checks

  • ✓ 3 nameservers #6
    Delegated to balsa.ipsl.fr, dns.ipsl.jussieu.fr, hermes.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: balsa.ipsl.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 3 IPv4 /24s and 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS1307 (UNSPECIFIED - Renater, EU): 1 address; AS2200 (FR-RENATER - Renater, FR): 3 addresses.
  • i
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: dns.ipsl.jussieu.fr, hermes.cnrs-gif.fr.
    #13

Nameservers

fail

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
balsa.ipsl.fr 194.254.40.1NOERROR, 14 ms, authoritativenoyes / yesALLOWED (345 records)-
balsa.ipsl.fr 2001:660:3023:1::1NOERROR, 16 ms, authoritativenoyes / yesALLOWED (345 records)-
dns.ipsl.jussieu.fr 134.157.176.1NOERROR, 14 ms, authoritativenoyes / yesrefused9.8.2rc1-RedHat-9.8.2-0.68.rc1.el6_10.8
hermes.cnrs-gif.fr 157.136.10.1NOERROR, 14 ms, authoritativenoyes / yesrefused9.20.29-1~deb13u1-Debian

Checks

  • ✓ 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: dns.ipsl.jussieu.fr: "9.8.2rc1-RedHat-9.8.2-0.68.rc1.el6_10.8"; hermes.cnrs-gif.fr: "9.20.29-1~deb13u1-Debian". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: balsa.ipsl.fr (194.254.40.1): 345 records; balsa.ipsl.fr (2001:660:3023:1::1): 345 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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.

SOA

pass

serial 2026101601 · primary dns.ipsl.jussieu.fr

Found

Primary (MNAME)
dns.ipsl.jussieu.fr
Contact (RNAME)
dnsmaster.ipsl.fr
Serial
2026101601
Refresh / retry
7200 s / 3600 s
Expire
2419200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
balsa.ipsl.fr (194.254.40.1)2026101601
balsa.ipsl.fr (2001:660:3023:1::1)2026101601
dns.ipsl.jussieu.fr (134.157.176.1)2026101601
hermes.cnrs-gif.fr (157.136.10.1)2026101601

Checks

  • ✓ Serial 2026101601 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 1h, expire 28d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.ipsl.jussieu.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@ipsl.fr #25
    The SOA RNAME dnsmaster.ipsl.fr means dnsmaster@ipsl.fr.
  • ✓ Date-based serial #26
    The serial 2026101601 follows the YYYYMMDDnn convention (2026-10-16).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

13 records at the apex

Found

Read from
194.254.40.1:53
TypeValueTTL
SOAdns.ipsl.jussieu.fr. dnsmaster.ipsl.fr. 2026101601 7200 3600 2419200 36003600
NSdns.ipsl.jussieu.fr.3600
NSbalsa.ipsl.fr.3600
NShermes.cnrs-gif.fr.3600
MX50 mx2.relay.renater.fr.3600
MX250 mxa.relay.renater.fr.3600
MX250 mxd.relay.renater.fr.3600
MX250 mxc.relay.renater.fr.3600
MX50 mx1.relay.renater.fr.3600
MX250 mxb.relay.renater.fr.3600
TXT"HARICA-3gf5JZ2yx1Jc2iNtsIA"3600
TXT"v=spf1 ip4:134.157.0.128/25 ip4:129.104.30.14/31 ip4:194.254.40.16/31 ip6:2001:660:3023:1::16 ip6:2001:660:3023:1::17 include:spf.relay.renater.fr include:spf.partage.renater.fr ~all"3600
TXT"ipsl.fr Institut Pierre Simon Laplace des sciences de l'environnement global"3600

Checks

  • ✓ TTLs within range #32
    TTLs: MX 1h, NS 1h.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35