cls.fr

Checked 22 October 2026, 02:20 UTC · via 8.8.8.8
✗Problems found
24 passed 1 warning 2 failed 4 info

Registration

info

.fr country-code · GANDI · expires 2029-06-09

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GANDI
Registered
2 December 1998
Last changed
13 June 2026
Expires
9 June 2029
Status
client transfer prohibited
Registry nameservers
hermes.cls.fr, hermes2.cls.fr, ns6.gandi.net
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 2029-06-09 #3
    The registration is valid until 2029-06-09 (961 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

hermes.cls.fr, hermes2.cls.fr, ns6.gandi.net

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
hermes.cls.fr, hermes2.cls.fr, ns6.gandi.net
NS in the zone
hermes.cls.fr, hermes2.cls.fr, ns6.gandi.net
NameserverAddressesNetwork (AS)Glue
hermes.cls.fr91.207.20.1AS24711 CLS-ARGOS-AS - Collecte Localisation Satellites SAS, FR91.207.20.1
hermes2.cls.fr91.207.20.2AS24711 CLS-ARGOS-AS - Collecte Localisation Satellites SAS, FR91.207.20.2
ns6.gandi.net217.70.177.42 2001:4b98:d:1::4bAS29169 GANDI-AS - GANDI SAS, FR AS29169 GANDI-AS - GANDI SAS, FR-

Checks

  • ✓ 3 nameservers #6
    Delegated to hermes.cls.fr, hermes2.cls.fr, ns6.gandi.net.
  • ✓ 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.cls.fr, hermes2.cls.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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS24711 (CLS-ARGOS-AS - Collecte Localisation Satellites SAS, FR): 2 addresses; AS29169 (GANDI-AS - GANDI SAS, FR): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .fr, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: hermes.cls.fr, hermes2.cls.fr.
    #13

Nameservers

fail

3 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
hermes.cls.fr 91.207.20.1SERVFAIL, 30 ms, NOT authoritativenono / yesrefusedBIND
hermes2.cls.fr 91.207.20.2NOERROR, 31 ms, authoritativenoyes / yesrefusedBIND
ns6.gandi.net 217.70.177.42NOERROR, 18 ms, authoritativenoyes / yesrefusedcustom
ns6.gandi.net 2001:4b98:d:1::4bNOERROR, 20 ms, authoritativenoyes / yesrefusedcustom

Checks

  • ✓ All respond #14
    All 4 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: hermes.cls.fr (91.207.20.1): SERVFAIL, authoritative=false.
    #15
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: hermes.cls.fr: "BIND"; hermes2.cls.fr: "BIND"; ns6.gandi.net: "custom".
    #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: hermes.cls.fr (91.207.20.1): .
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026101501 · primary hermes.cls.fr

Found

Primary (MNAME)
hermes.cls.fr
Contact (RNAME)
postmaster.cls.fr
Serial
2026101501
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
hermes2.cls.fr (91.207.20.2)2026101501
ns6.gandi.net (217.70.177.42)2026101501
ns6.gandi.net (2001:4b98:d:1::4b)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver hermes.cls.fr is one of the listed nameservers.
  • ✓ Contact postmaster@cls.fr #25
    The SOA RNAME postmaster.cls.fr means postmaster@cls.fr.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

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

14 records at the apex

Found

Read from
91.207.20.2:53
TypeValueTTL
SOAhermes.cls.fr. postmaster.cls.fr. 2026101501 28800 7200 604800 8640086400
NShermes.cls.fr.86400
NShermes2.cls.fr.86400
NSns6.gandi.net.86400
A91.207.20.23586400
MX5 cls-fr.mail.protection.outlook.com.86400
TXT"hydrones-dataviewer=71b4b99f19dde4284cb7fbca8a86f76f"86400
TXT"aguvevoq6o6vikd54v84jqn5j9"86400
TXT"ApzN/mCdC9dTw07NcuatJ4w/KkLWqcQXOZcDoa39NA09KAr2v0+18MNY9862S5srsKe/ie5abjQM/Z/8PpoA4Q=="86400
TXT"google-site-verification=xvqA-I021uI5GTzYJ05eO5jDzbj_UiASsTIOh3_cWsM"86400
TXT"MS=ms41546692"86400
TXT"ZOOM_verify_RWq0u149S1aZl9OaBpj1cQ"86400
TXT"hydrones=e70e2f99ac2933bfdf5b94f41c94e5e2"86400
TXT"v=spf1 mx ip4:91.207.20.141 ip4:91.207.20.142 ip4:91.207.20.143 ip4:91.207.20.40 ip4:91.207.20.80 ip4:193.42.151.197 ip4:194.199.174.200 ip4:194.199.174.201 ip4:194.199.174.202 ip4:194.199.175.203 ip4:194.199.175.202" " a:owa.cls.fr" " include:mailcontrol.com include:_spf.google.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:spf.hornetsecurity.com -all"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; 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