ensea.fr

Checked 22 October 2026, 02:45 UTC · via 8.8.8.8
✗Problems found
20 passed 3 warnings 2 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-08-02

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
29 October 1995
Last changed
30 September 2026
Expires
2 August 2027
Status
active
Registry nameservers
blanche.ensea.fr, daisy.ensea.fr, tryphon.ensea.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 2027-08-02 #3
    The registration is valid until 2027-08-02 (284 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

blanche.ensea.fr, daisy.ensea.fr, tryphon.ensea.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
blanche.ensea.fr, daisy.ensea.fr, tryphon.ensea.fr
NS in the zone
blanche.ensea.fr, daisy.ensea.fr, tryphon.ensea.fr
NameserverAddressesNetwork (AS)Glue
blanche.ensea.fr193.51.46.142 2001:660:3037:f::1AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.51.46.142
daisy.ensea.fr193.51.45.2 2001:660:3037:e::1AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.51.45.2
tryphon.ensea.fr193.51.47.205 2001:660:3037:b::1AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.51.47.205

Checks

  • ✓ 3 nameservers #6
    Delegated to blanche.ensea.fr, daisy.ensea.fr, tryphon.ensea.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: blanche.ensea.fr (glue 193.51.46.142, zone 193.51.46.142, 2001:660:3037:f::1); daisy.ensea.fr (glue 193.51.45.2, zone 193.51.45.2, 2001:660:3037:e::1); tryphon.ensea.fr (glue 193.51.47.205, zone 193.51.47.205, 2001:660:3037:b::1). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:660:3037::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

4 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
blanche.ensea.fr 193.51.46.142NOERROR, 14 ms, authoritativenoyes / yesrefusedunknown
blanche.ensea.fr 2001:660:3037:f::1NOERROR, 14 ms, authoritativenoyes / yesrefusedunknown
daisy.ensea.fr 193.51.45.2SERVFAIL, 14 ms, NOT authoritativenono / yesrefusedunknown
daisy.ensea.fr 2001:660:3037:e::1SERVFAIL, 15 ms, NOT authoritativenono / yesrefusedunknown
tryphon.ensea.fr 193.51.47.205NOERROR, 14 ms, authoritativenoyes / yesrefusedunknown
tryphon.ensea.fr 2001:660:3037:b::1NOERROR, 17 ms, authoritativenoyes / yesrefusedunknown

Checks

  • ✓ All respond #14
    All 6 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: daisy.ensea.fr (193.51.45.2): SERVFAIL, authoritative=false; daisy.ensea.fr (2001:660:3037:e::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: blanche.ensea.fr: "unknown"; daisy.ensea.fr: "unknown"; tryphon.ensea.fr: "unknown".
    #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: daisy.ensea.fr (193.51.45.2): ; daisy.ensea.fr (2001:660:3037:e::1): .
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 202609071 · primary blanche.ensea.fr

Found

Primary (MNAME)
blanche.ensea.fr
Contact (RNAME)
admindns.ensea.fr
Serial
202609071
Refresh / retry
3600 s / 900 s
Expire
1814400 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
blanche.ensea.fr (193.51.46.142)202609071
blanche.ensea.fr (2001:660:3037:f::1)202609071
tryphon.ensea.fr (193.51.47.205)2026090704
tryphon.ensea.fr (2001:660:3037:b::1)2026090704

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 2026090704 on tryphon.ensea.fr (193.51.47.205), tryphon.ensea.fr (2001:660:3037:b::1); 202609071 on blanche.ensea.fr (193.51.46.142), blanche.ensea.fr (2001:660:3037:f::1). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 21d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver blanche.ensea.fr is one of the listed nameservers.
  • ✓ Contact admindns@ensea.fr #25
    The SOA RNAME admindns.ensea.fr means admindns@ensea.fr.
  • ✓ Counter serial #26
    The serial 202609071 is a plain counter.

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

pass

18 records at the apex

Found

Read from
193.51.46.142:53
TypeValueTTL
SOAblanche.ensea.fr. admindns.ensea.fr. 202609071 3600 900 1814400 72003600
NStryphon.ensea.fr.3600
NSblanche.ensea.fr.3600
NSdaisy.ensea.fr.3600
A51.255.74.913600
MX0 ensea-fr.mail.protection.outlook.com.3600
TXT"DirectFedPassiveSignInUri=https://identites.ensea.fr/idp/profile/SAML2/Redirect/SSO"3600
TXT"HARICA-CI6qIhtixTsWui59BuX"3600
TXT"brevo-code:3b43f30486511625fe340d7cf6b103fd"3600
TXT"MS=180C275C1A93AA656A2D6BAD0BB27BFB57A7EFE1"3600
TXT"Foxit-domain-verification=05308491d226d865e00dee9fa9384daa"3600
TXT"brevo-code:e7a1fe91a0c2588bf93f4a940b178bf4"3600
TXT"brevo-code:ef68c1508ca86a0ff416fc07314207ff"3600
TXT"DirectFedAuthUrl=https://identites.ensea.fr/idp/profile/SAML2/Redirect/SSO"3600
TXT"v=spf1 include:spf.partage.renater.fr a:smtpi.ensea.fr ip4:193.51.45.8 ip4:193.51.47.9 ip4:193.51.47.27 ip4:193.51.47.13 include:spf.protection.outlook.com -all"3600
CAA0 issue "harica.gr"3600
CAA0 issuewild "harica.gr"3600
CAA0 issue "letsencrypt.org"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: harica.gr, letsencrypt.org.