montgeron.fr

Checked 22 October 2026, 04:25 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 6 info

Registration

info

.fr country-code · OVH · expires 2027-04-19

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
OVH
Registered
7 May 2004
Last changed
31 May 2026
Expires
19 April 2027
Status
active
Registry nameservers
dns17.ovh.net, ns17.ovh.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 2027-04-19 #3
    The registration is valid until 2027-04-19 (179 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

dns17.ovh.net, ns17.ovh.net

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns17.ovh.net, ns17.ovh.net
NS in the zone
dns17.ovh.net, ns17.ovh.net
NameserverAddressesNetwork (AS)Glue
dns17.ovh.net5.135.112.105 2001:41d0:d00:f600::2AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR-
ns17.ovh.net5.39.116.57 2001:41d0:b00:f000::2AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns17.ovh.net, ns17.ovh.net.
    #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 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16276 (OVH - OVH SAS, FR): 4 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 .net
    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

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns17.ovh.net 5.135.112.105NOERROR, 15 ms, authoritativenoyes / yesrefused-
dns17.ovh.net 2001:41d0:d00:f600::2NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns17.ovh.net 5.39.116.57NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns17.ovh.net 2001:41d0:b00:f000::2NOERROR, 15 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

warn

serial 2091185612 · primary dns17.ovh.net

Found

Primary (MNAME)
dns17.ovh.net
Contact (RNAME)
tech.ovh.net
Serial
2091185612
Refresh / retry
86400 s / 3600 s
Expire
3600000 s
Negative TTL
60 s

Serial per nameserver

NameserverSerial
dns17.ovh.net (5.135.112.105)2091185612
dns17.ovh.net (2001:41d0:d00:f600::2)2091185612
ns17.ovh.net (5.39.116.57)2091185612
ns17.ovh.net (2001:41d0:b00:f000::2)2091185612

Checks

  • ✓ Serial 2091185612 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 1h, expire 1000h, negative TTL 1m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns17.ovh.net is one of the listed nameservers.
  • ✓ Contact tech@ovh.net #25
    The SOA RNAME tech.ovh.net means tech@ovh.net.
  • ✓ Timestamp serial #26
    The serial 2091185612 is a Unix timestamp (2036-04-07 12:53 UTC).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
4 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
62779RSASHA256 (8)SHA256 AE4B927EBB05D471…yes

DNSKEY in the zone

Key tagRoleAlgorithm
62779KSK (257)RSASHA256 (8)
56893ZSK (256)RSASHA256 (8)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 62779 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-11-04 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-04 06:33 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

10 records at the apex

Found

Read from
5.135.112.105:53
TypeValueTTL
SOAdns17.ovh.net. tech.ovh.net. 2091185612 86400 3600 3600000 6060
NSns17.ovh.net.60
NSdns17.ovh.net.60
A109.234.161.18560
MX5 montgeron-fr.mail.protection.outlook.com.60
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.o2switch.inovawork.net include:spf.mailjet.com include:amazonses.com -all"60
TXT"_globalsign-domain-verification=fDJWsCbedVw-QAHS2AsghiwN8rMV-H1rVctfmE2Tnd"60
TXT"_globalsign-domain-verification=PrSRHmyoW5Ie6eIdnUtvsU_DHWAYSfnC4_90c5r-P4"60
TXT"brevo-code:34eaabf7cc80619dddee2800a2b074b0"60
TXT"MS=ms81949437"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1m; resolvers may use either.
    #32
  • ✓ 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