nextcloud.com

Checked 22 October 2026, 10:02 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 2 info

Registration

info

.com generic · INWX GmbH · expires 2027-02-22

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
INWX GmbH
Registered
22 February 2005
Last changed
22 February 2026
Expires
22 February 2027
Status
client transfer prohibited
Registry nameservers
ns.inwx.de, ns2.inwx.de, ns3.inwx.eu
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-02-22 #3
    The registration is valid until 2027-02-22 (122 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

pass

ns.inwx.de, ns2.inwx.de, ns3.inwx.eu

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.inwx.de, ns2.inwx.de, ns3.inwx.eu
NS in the zone
ns.inwx.de, ns2.inwx.de, ns3.inwx.eu
NameserverAddressesNetwork (AS)Glue
ns.inwx.de192.174.68.104 2001:67c:1bc::104AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns2.inwx.de176.97.158.104 2001:67c:10b8::104AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns3.inwx.eu45.87.158.53 2a02:d500::53AS48596 INWX - InterNetworX Management GmbH, DE AS48596 INWX - InterNetworX Management GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.inwx.de, ns2.inwx.de, ns3.inwx.eu.
  • ✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses; AS48596 (INWX - InterNetworX Management GmbH, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .eu.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.inwx.de 192.174.68.104NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns.inwx.de 2001:67c:1bc::104NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.inwx.de 176.97.158.104NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1
ns2.inwx.de 2001:67c:10b8::104NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1
ns3.inwx.eu 45.87.158.53NOERROR, 12 ms, authoritativenoyes / yesrefusedINWX AXFR Server
ns3.inwx.eu 2a02:d500::53NOERROR, 12 ms, authoritativenoyes / yesrefusedINWX AXFR Server

Checks

  • ✓ All respond #14
    All 6 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns.inwx.de: "RcodeZero DNS"; ns2.inwx.de: "reg-wie1"; ns3.inwx.eu: "INWX AXFR Server".
    #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.

SOA

pass

serial 2026091702 · primary ns.inwx.de

Found

Primary (MNAME)
ns.inwx.de
Contact (RNAME)
hostmaster.inwx.de
Serial
2026091702
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns.inwx.de (192.174.68.104)2026091702
ns.inwx.de (2001:67c:1bc::104)2026091702
ns2.inwx.de (176.97.158.104)2026091702
ns2.inwx.de (2001:67c:10b8::104)2026091702
ns3.inwx.eu (45.87.158.53)2026091702
ns3.inwx.eu (2a02:d500::53)2026091702

Checks

  • ✓ Serial 2026091702 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 ns.inwx.de is one of the listed nameservers.
  • ✓ Contact hostmaster@inwx.de #25
    The SOA RNAME hostmaster.inwx.de means hostmaster@inwx.de.
  • ✓ Date-based serial #26
    The serial 2026091702 follows the YYYYMMDDnn convention (2026-09-17).

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

12 records at the apex

Found

Read from
192.174.68.104:53
TypeValueTTL
SOAns.inwx.de. hostmaster.inwx.de. 2026091702 10800 3600 604800 360086400
NSns.inwx.de.86400
NSns2.inwx.de.86400
NSns3.inwx.eu.86400
A65.109.84.172300
AAAA2a01:4f9:3051:52aa::2300
MX10 mx1.nextcloud.com.3600
TXT"apple-domain-verification=dTWDbt2uCnxS9nIG"3600
TXT"MS=2FF4FDA4B4C49AE44213D37A308105AA0D4EBF39"3600
TXT"google-site-verification=BRRA-GQB6KD9WDj8KhccsNho8-E0Feba52m32uuDZ5w"3600
TXT"v=spf1 mx include:sendgrid.net include:amazonses.com include:_spf.eu.sparkpostmail.com -all"3600
CAA0 issue "letsencrypt.org"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, NS 1d. The NS TTL at the parent is 2d 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: letsencrypt.org.