rebellyon.fr

Checked 22 October 2026, 04:58 UTC · via 8.8.8.8
✗Problems found
24 passed 2 warnings 1 failed 4 info

Registration

info

.fr country-code · NETIM · expires 2027-10-10

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
NETIM
Registered
10 October 2025
Last changed
5 October 2026
Expires
10 October 2027
Status
client transfer prohibited
Registry nameservers
ns1.ultahost.com, ns2.ultahost.com, ns3.ultahost.com, ns4.ultahost.com
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 2027-10-10 #3
    The registration is valid until 2027-10-10 (353 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.

Delegation

info

ns1.ultahost.com, ns2.ultahost.com, ns3.ultahost.com, ns4.ultahost.com

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.ultahost.com, ns2.ultahost.com, ns3.ultahost.com, ns4.ultahost.com
NS in the zone
ns1.ultahost.com, ns2.ultahost.com, ns3.ultahost.com, ns4.ultahost.com
NameserverAddressesNetwork (AS)Glue
ns1.ultahost.com167.71.73.238AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US-
ns2.ultahost.com51.38.114.43 2001:41d0:701:1100::7e5AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR-
ns3.ultahost.com94.130.75.18 2a01:4f8:c0c:79ee::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns4.ultahost.com149.28.254.81 2001:19f0:6402:4de:5400:2ff:fe93:34e8AS20473 AS-VULTR - The Constant Company, LLC, US AS20473 AS-VULTR - The Constant Company, LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.ultahost.com, ns2.ultahost.com, ns3.ultahost.com, ns4.ultahost.com.
  • ✓ 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 4 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US): 1 address; AS16276 (OVH - OVH SAS, FR): 2 addresses; AS20473 (AS-VULTR - The Constant Company, LLC, US): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses.
  • i
    All nameserver names under .com
    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: ns1.ultahost.com.
    #13

Nameservers

fail

7 of 7 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.ultahost.com 167.71.73.238NOERROR, 11 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)
ns2.ultahost.com 51.38.114.43NOERROR, 7 ms, authoritativenono / yesrefused-
ns2.ultahost.com 2001:41d0:701:1100::7e5NOERROR, 11 ms, authoritativenono / yesrefused-
ns3.ultahost.com 94.130.75.18NOERROR, 8 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)
ns3.ultahost.com 2a01:4f8:c0c:79ee::1NOERROR, 8 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)
ns4.ultahost.com 149.28.254.81NOERROR, 144 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)
ns4.ultahost.com 2001:19f0:6402:4de:5400:2ff:fe93:34e8NOERROR, 136 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)

Checks

  • ✓ All respond #14
    All 7 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.ultahost.com: "PowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)"; ns3.ultahost.com: "PowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)"; ns4.ultahost.com: "PowerDNS Authoritative Server 4.6.2 (built Apr 12 2022 08:38:41 by root@32337cc8448c)". Hide or replace the version string.
    #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: ns2.ultahost.com (51.38.114.43): EOF; ns2.ultahost.com (2001:41d0:701:1100::7e5): EOF.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026101500 · primary ns1.ultahost.com

Found

Primary (MNAME)
ns1.ultahost.com
Contact (RNAME)
root.cp5.fra1.ultacp.com
Serial
2026101500
Refresh / retry
3600 s / 1800 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.ultahost.com (167.71.73.238)2026101500
ns2.ultahost.com (51.38.114.43)2026101500
ns2.ultahost.com (2001:41d0:701:1100::7e5)2026101500
ns3.ultahost.com (94.130.75.18)2026101500
ns3.ultahost.com (2a01:4f8:c0c:79ee::1)2026101500
ns4.ultahost.com (149.28.254.81)2026101500
ns4.ultahost.com (2001:19f0:6402:4de:5400:2ff:fe93:34e8)2026101500

Checks

  • ✓ Serial 2026101500 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 30m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ultahost.com is one of the listed nameservers.
  • ✓ Contact root@cp5.fra1.ultacp.com #25
    The SOA RNAME root.cp5.fra1.ultacp.com means root@cp5.fra1.ultacp.com.
  • ✓ Date-based serial #26
    The serial 2026101500 follows the YYYYMMDDnn convention (2026-10-15).

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

info

8 records at the apex

Found

Read from
167.71.73.238:53
TypeValueTTL
SOAns1.ultahost.com. root.cp5.fra1.ultacp.com. 2026101500 3600 1800 1209600 8640086400
NSns3.ultahost.com.86400
NSns2.ultahost.com.86400
NSns1.ultahost.com.86400
NSns4.ultahost.com.86400
A159.100.6.514400
MX0 rebellyon.fr.14400
TXT"v=spf1 +a +mx +ip4:159.100.6.5 include:relay.mailchannels.net ~all"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.
  • ✓ 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