Domain report: ensai.fr

Registration

info

.fr country-code · GIP RENATER · expires 2027-09-18

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.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 2027-09-18 #3

The registration is valid until 2027-09-18 (331 days).
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No transfer lock

The domain has no transfer lock (status: active, auto renew period). 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.

fail

comserv2.ensae.fr, dnsext.ensai.fr

Nameserver	Addresses	Network (AS)	Glue
comserv2.ensae.fr (parent only)	(does not resolve)		-
dnsext.ensai.fr	195.220.86.36	AS2200 FR-RENATER - Renater, FR	195.220.86.36
dnsext2.ensai.fr (zone only)	195.220.86.42	AS2200 FR-RENATER - Renater, FR	-
reld01.insa-rennes.fr (zone only)	193.52.94.2	AS2200 FR-RENATER - Renater, FR	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: comserv2.ensae.fr, dnsext.ensai.fr.

#6
!

NS sets differ

The nameservers at the parent and in the zone should be the same. Only at the parent: comserv2.ensae.fr; only in the zone: dnsext2.ensai.fr, reld01.insa-rennes.fr. dnsext.ensai.fr, dnsext2.ensai.fr, reld01.insa-rennes.fr report NS dnsext.ensai.fr dnsext2.ensai.fr reld01.insa-rennes.fr.

#7
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: dnsext.ensai.fr.
✗

Nameserver names don't resolve

These nameservers have no A or AAAA record, so they can't be reached (lame delegation): comserv2.ensae.fr.

#9
✓ Nameservers in different networks #10

The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 3 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
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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
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Partly IPv6

These nameservers have no IPv6 address: dnsext.ensai.fr, dnsext2.ensai.fr, reld01.insa-rennes.fr.

#13

pass

3 of 3 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dnsext.ensai.fr 195.220.86.36	NOERROR, 27 ms, authoritative	no	yes / yes	refused	-
dnsext2.ensai.fr 195.220.86.42	NOERROR, 24 ms, authoritative	no	yes / yes	refused	-
reld01.insa-rennes.fr 193.52.94.2	NOERROR, 19 ms, authoritative	no	yes / yes	refused	-

✓ All respond #14

All 3 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.

pass

serial 202403541 · primary dnsext.ensai.fr

✓ Serial 202403541 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver dnsext.ensai.fr is one of the listed nameservers.
✓ Contact root@ensai.fr #25

The SOA RNAME root.ensai.fr means root@ensai.fr.
✓ Counter serial #26

The serial 202403541 is a plain counter.

warn

Not signed

info

11 records at the apex

Type	Value	TTL
SOA	dnsext.ensai.fr. root.ensai.fr. 202403541 10800 3600 604800 3600	86400
NS	dnsext2.ensai.fr.	3600
NS	reld01.insa-rennes.fr.	3600
NS	dnsext.ensai.fr.	3600
A	51.91.236.193	300
MX	10 esa1.hc610-89.eu.iphmx.com.	86400
MX	20 esa2.hc610-89.eu.iphmx.com.	86400
TXT	"MS=ms44472562"	86400
TXT	"v=spf1 mx a ip4:195.220.86.37 ip4:195.220.86.57 ip4:195.220.86.69 include:alumnforce.org include:spf.mailjet.com include:spf.tipimail.com include:spf.protection.outlook.com exists:%{i}.spf.hc610-89.eu.iphmx.com ~all"	86400
TXT	"SbApANT/CsO64Pb5kaOd7IgRlssIm9qimRtO0OT9kWSTVQa6HFI+KzHADT6wJDZoqaf60GdZUgkdNvQmz+crdQ=="	86400
TXT	"brevo-code:990cdd91116c303076ed5fbdecfeab80"	86400