isara.fr

Checked 22 October 2026, 03:32 UTC · via 8.8.8.8
✗Problems found
21 passed 3 warnings 2 failed 5 info

Registration

info

.fr country-code · GANDI · expires 2027-05-20

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GANDI
Registered
17 June 1998
Last changed
24 April 2026
Expires
20 May 2027
Status
active
Registry nameservers
dns.univ-lyon1.fr, ns1.isara.fr, ns2.isara.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 2027-05-20 #3
    The registration is valid until 2027-05-20 (210 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

warn

dns.univ-lyon1.fr, ns1.isara.fr, ns2.isara.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.univ-lyon1.fr, ns1.isara.fr, ns2.isara.fr
NS in the zone
dns.univ-lyon1.fr, ns1.isara.fr, ns2.isara.fr
NameserverAddressesNetwork (AS)Glue
dns.univ-lyon1.fr134.214.100.6 2001:660:5001:100::6AS2060 FR-RENATER - Renater, EU AS2200 FR-RENATER - Renater, FR134.214.100.6 2001:660:5001:100::6
ns1.isara.fr62.4.10.163AS12876 AS12876 - Scaleway SAS, FR62.4.10.163
ns2.isara.fr212.129.1.189 2001:bc8:34f2:103::1AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR212.129.1.189

Checks

  • ✓ 3 nameservers #6
    Delegated to dns.univ-lyon1.fr, ns1.isara.fr, ns2.isara.fr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns2.isara.fr (glue 212.129.1.189, zone 212.129.1.189, 2001:bc8:34f2:103::1). Update the glue at your registrar.
    #8
  • ✓ 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 2 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS12876 (AS12876 - Scaleway SAS, FR): 3 addresses; AS2060 (FR-RENATER - Renater, EU): 1 address; AS2200 (FR-RENATER - Renater, FR): 1 address.
  • 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: ns1.isara.fr.
    #13

Nameservers

fail

4 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.univ-lyon1.fr 134.214.100.6NOERROR, 18 ms, authoritativenoyes / yesrefused-
dns.univ-lyon1.fr 2001:660:5001:100::6NOERROR, 21 ms, authoritativenoyes / yesrefused-
ns1.isara.fr 62.4.10.163NOERROR, 16 ms, authoritativenoyes / yesrefused9.18.30-0ubuntu0.20.04.2-Ubuntu
ns2.isara.fr 212.129.1.189NOERROR, 17 ms, authoritativenoyes / yesALLOWED (247 records)9.18.30-0ubuntu0.20.04.2-Ubuntu
ns2.isara.fr 2001:bc8:34f2:103::1no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns2.isara.fr (2001:bc8:34f2:103::1): read udp [2a01:4f8:1c1c:eebf::1]:39645->[2001:bc8:34f2:103::1]:53: i/o timeout.
    #14
  • ✓ 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: ns1.isara.fr: "9.18.30-0ubuntu0.20.04.2-Ubuntu"; ns2.isara.fr: "9.18.30-0ubuntu0.20.04.2-Ubuntu". 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: ns2.isara.fr (212.129.1.189): 247 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 2026101201 · primary ns1.isara.fr

Found

Primary (MNAME)
ns1.isara.fr
Contact (RNAME)
root.isara.fr
Serial
2026101201
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
dns.univ-lyon1.fr (134.214.100.6)2026101201
dns.univ-lyon1.fr (2001:660:5001:100::6)2026101201
ns1.isara.fr (62.4.10.163)2026101201
ns2.isara.fr (212.129.1.189)2026101201

Checks

  • ✓ Serial 2026101201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.isara.fr is one of the listed nameservers.
  • ✓ Contact root@isara.fr #25
    The SOA RNAME root.isara.fr means root@isara.fr.
  • ✓ Date-based serial #26
    The serial 2026101201 follows the YYYYMMDDnn convention (2026-10-12).

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
134.214.100.6:53
TypeValueTTL
SOAns1.isara.fr. root.isara.fr. 2026101201 3600 600 604800 7200300
NSdns.univ-lyon1.fr.300
NSns2.isara.fr.300
NSns1.isara.fr.300
A62.4.10.167300
MX20 vade-mx-eu-fallback01.hornetsecurity.com.300
MX20 vade-mx-eu-fallback02.hornetsecurity.com.300
MX10 vade-mx-fr01.hornetsecurity.com.300
MX10 vade-mx-fr02.hornetsecurity.com.300
TXT"brevo-code:0443b77b5a2a7fcd11180161c0e45069"300
TXT"cisco-ci-domain-verification=3141b3d2d6b4efd7be0affeab61fafa61e37fbb9ef3bd8b75fb27f7e46f21004"300
TXT"google-site-verification=Il9UrpW-NJZdvoAOjBA5ItXI0LCvjIMPbEpeDiGKZdE"300
TXT"v=spf1 a mx ip4:193.55.245.128/25 include:mail.gandi.net include:spf.hornetsecurity.com include:spf.cloud.vadesecure.com include:spf.mailjet.com include:_spf.netanswer.fr -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1h and in the zone 5m; resolvers may use either.
  • ✓ 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