Domain report: lebesgue.fr

Registration

info

.fr country-code · NAMESHIELD · 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).
✓ 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.

warn

resone.univ-rennes1.fr, soleil.uvsq.fr

Nameserver	Addresses	Network (AS)	Glue
resone.univ-rennes1.fr	129.20.254.1	AS2200 FR-RENATER - Renater, FR	129.20.254.1
soleil.uvsq.fr	193.51.24.1	AS2200 FR-RENATER - Renater, FR	193.51.24.1

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: resone.univ-rennes1.fr, soleil.uvsq.fr.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ 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 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): 2 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
!

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

info

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
resone.univ-rennes1.fr 129.20.254.1	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-
soleil.uvsq.fr 193.51.24.1	NOERROR, 15 ms, authoritative	no	yes / yes	refused	Bind

✓ All respond #14

All 2 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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: soleil.uvsq.fr: "Bind".

#17
✓ 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 2016090663 · primary resone.univ-rennes1.fr

Nameserver	Serial
resone.univ-rennes1.fr (129.20.254.1)	2016090663
soleil.uvsq.fr (193.51.24.1)	2016090663

✓ Serial 2016090663 everywhere #22

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

SOA refresh 2h, retry 30m, expire 28d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver resone.univ-rennes1.fr is one of the listed nameservers.
✓ Contact hostmaster@univ-rennes1.fr #25

The SOA RNAME hostmaster.univ-rennes1.fr means hostmaster@univ-rennes1.fr.
✓ Date-based serial #26

The serial 2016090663 follows the YYYYMMDDnn convention (2016-09-06).

warn

Not signed

pass

7 records at the apex

Type	Value	TTL
SOA	resone.univ-rennes1.fr. hostmaster.univ-rennes1.fr. 2016090663 7200 1800 2419200 3600	86400
NS	resone.univ-rennes1.fr.	3600
NS	soleil.uvsq.fr.	3600
A	193.52.94.80	86400
MX	10 chl.lebesgue.fr.	86400
TXT	"v=spf1 ip4:193.52.94.80 ~all"	3600
CAA	0 issue "harica.gr"	3600