insa-rennes.fr

Checked 22 October 2026, 03:30 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 4 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
dns.univ-lyon1.fr, reld01.insa-rennes.fr, resone.univ-rennes1.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

dns.univ-lyon1.fr, reld01.insa-rennes.fr, resone.univ-rennes1.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.univ-lyon1.fr, reld01.insa-rennes.fr, resone.univ-rennes1.fr
NS in the zone
dns.univ-lyon1.fr, reld01.insa-rennes.fr, resone.univ-rennes1.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
reld01.insa-rennes.fr193.52.94.2AS2200 FR-RENATER - Renater, FR193.52.94.2
resone.univ-rennes1.fr129.20.254.1AS2200 FR-RENATER - Renater, FR129.20.254.1

Checks

  • ✓ 3 nameservers #6
    Delegated to dns.univ-lyon1.fr, reld01.insa-rennes.fr, resone.univ-rennes1.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: reld01.insa-rennes.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: AS2060 (FR-RENATER - 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: reld01.insa-rennes.fr, resone.univ-rennes1.fr.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.univ-lyon1.fr 134.214.100.6NOERROR, 17 ms, authoritativenoyes / yesrefused-
dns.univ-lyon1.fr 2001:660:5001:100::6NOERROR, 19 ms, authoritativenoyes / yesrefused-
reld01.insa-rennes.fr 193.52.94.2NOERROR, 19 ms, authoritativenoyes / yesrefused-
resone.univ-rennes1.fr 129.20.254.1NOERROR, 23 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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.

SOA

pass

serial 2018046179 · primary reld01.insa-rennes.fr

Found

Primary (MNAME)
reld01.insa-rennes.fr
Contact (RNAME)
dsi-reseau.insa-rennes.fr
Serial
2018046179
Refresh / retry
28800 s / 14400 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns.univ-lyon1.fr (134.214.100.6)2018046179
dns.univ-lyon1.fr (2001:660:5001:100::6)2018046179
reld01.insa-rennes.fr (193.52.94.2)2018046179
resone.univ-rennes1.fr (129.20.254.1)2018046179

Checks

  • ✓ Serial 2018046179 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 4h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver reld01.insa-rennes.fr is one of the listed nameservers.
  • ✓ Contact dsi-reseau@insa-rennes.fr #25
    The SOA RNAME dsi-reseau.insa-rennes.fr means dsi-reseau@insa-rennes.fr.
  • ✓ Timestamp serial #26
    The serial 2018046179 is a Unix timestamp (2033-12-13 00:22 UTC).

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

17 records at the apex

Found

Read from
134.214.100.6:53
TypeValueTTL
SOAreld01.insa-rennes.fr. dsi-reseau.insa-rennes.fr. 2018046179 28800 14400 1209600 864001200
NSreld01.insa-rennes.fr.3600
NSresone.univ-rennes1.fr.3600
NSdns.univ-lyon1.fr.3600
A193.52.94.58300
MX10 mx2.relay.renater.fr.300
MX10 mx1.relay.renater.fr.300
TXT"autodesk-domain-verification=vyrU7IVhNSDKYZrMFb11"86400
TXT"MS=147AF3390F0107D112F902E84DEC2D4EB6E2B948"86400
TXT"Foxit-domain-verification=9d39fefa5b8b0e380e5043680cbdb286"86400
TXT"HARICA-8AHCSeKYVXeK6LbYQDt"86400
TXT"brevo-code:09357c2630559d902817770f34dbf0b1"86400
TXT"druide-validation-domaine=f0687d86c22872f9e1980f2de157ff9a"86400
TXT"v=spf1 ip4:193.52.94.24 ip4:193.52.94.25 ip4:134.214.182.44 ~all"86400
CAA0 issue "harica.gr"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issuewild "harica.gr"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, 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.