ionos.de

Checked 21 October 2026, 23:00 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 warnings 0 failed 3 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de 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
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

pass

ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org
NS in the zone
ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org
NameserverAddressesNetwork (AS)Glue
ns-1and1.ui-dns.biz217.160.81.200 185.132.33.200 2001:8d8:fe:53:0:d9a0:51c8:100 2607:f1c0:fe:53:185:132:33:200AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns-1and1.ui-dns.com185.132.34.200 217.160.82.200 2001:8d8:fe:53:0:d9a0:52c8:100 2607:f1c0:fe:53:185:132:34:200AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns-1and1.ui-dns.de217.160.80.200 185.132.32.200 2001:8d8:fe:53:0:d9a0:50c8:100 2607:f1c0:fe:53:185:132:32:200AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
ns-1and1.ui-dns.org185.132.35.200 217.160.83.200 2001:8d8:fe:53:0:d9a0:53c8:100 2607:f1c0:fe:53:185:132:35:200AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1and1.ui-dns.biz, ns-1and1.ui-dns.com, ns-1and1.ui-dns.de, ns-1and1.ui-dns.org.
  • ✓ 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 8 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15418 (IONOS-ANYCAST - Fasthosts Internet Limited, GB): 8 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 8 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .de, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

16 of 16 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1and1.ui-dns.biz 217.160.81.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 185.132.33.200NOERROR, 6 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 2001:8d8:fe:53:0:d9a0:51c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.biz 2607:f1c0:fe:53:185:132:33:200NOERROR, 6 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 185.132.34.200NOERROR, 5 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 217.160.82.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 2607:f1c0:fe:53:185:132:34:200NOERROR, 5 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 217.160.80.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 185.132.32.200NOERROR, 6 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c8:100NOERROR, 10 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2607:f1c0:fe:53:185:132:32:200NOERROR, 6 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 185.132.35.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 217.160.83.200NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2607:f1c0:fe:53:185:132:35:200NOERROR, 7 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 16 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-1and1.ui-dns.biz: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.com: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.de: "Served by PowerDNS - https://www.powerdns.com/"; ns-1and1.ui-dns.org: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2018063948 · primary ns-1and1.ui-dns.com

Found

Primary (MNAME)
ns-1and1.ui-dns.com
Contact (RNAME)
dnsadmin.1and1.com
Serial
2018063948
Refresh / retry
14400 s / 3600 s
Expire
605000 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns-1and1.ui-dns.biz (217.160.81.200)2018063948
ns-1and1.ui-dns.biz (185.132.33.200)2018063948
ns-1and1.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c8:100)2018063948
ns-1and1.ui-dns.biz (2607:f1c0:fe:53:185:132:33:200)2018063948
ns-1and1.ui-dns.com (185.132.34.200)2018063948
ns-1and1.ui-dns.com (217.160.82.200)2018063948
ns-1and1.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c8:100)2018063948
ns-1and1.ui-dns.com (2607:f1c0:fe:53:185:132:34:200)2018063948
ns-1and1.ui-dns.de (217.160.80.200)2018063948
ns-1and1.ui-dns.de (185.132.32.200)2018063948
ns-1and1.ui-dns.de (2001:8d8:fe:53:0:d9a0:50c8:100)2018063948
ns-1and1.ui-dns.de (2607:f1c0:fe:53:185:132:32:200)2018063948
ns-1and1.ui-dns.org (185.132.35.200)2018063948
ns-1and1.ui-dns.org (217.160.83.200)2018063948
ns-1and1.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c8:100)2018063948
ns-1and1.ui-dns.org (2607:f1c0:fe:53:185:132:35:200)2018063948

Checks

  • ✓ Serial 2018063948 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 168h3m20s, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1and1.ui-dns.com is one of the listed nameservers.
  • ✓ Contact dnsadmin@1and1.com #25
    The SOA RNAME dnsadmin.1and1.com means dnsadmin@1and1.com.
  • ✓ Timestamp serial #26
    The serial 2018063948 is a Unix timestamp (2033-12-13 05:19 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
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
50180RSASHA256 (8)SHA256 3B8417AFB5B330C8…yes

DNSKEY in the zone

Key tagRoleAlgorithm
15694ZSK (256)RSASHA256 (8)
50180KSK (257)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 50180 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 06:54 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

39 records at the apex

Found

Read from
217.160.81.200:53
TypeValueTTL
SOAns-1and1.ui-dns.com. dnsadmin.1and1.com. 2018063948 14400 3600 605000 60086400
NSns-1and1.ui-dns.com.172800
NSns-1and1.ui-dns.de.172800
NSns-1and1.ui-dns.biz.172800
NSns-1and1.ui-dns.org.172800
A217.160.86.51300
A217.160.86.49300
MX10 mxint02.1and1.com.86400
MX10 mxint01.1and1.com.86400
TXT"97b2wftzdtjjn1gn6mrqy16cgcfclfxh"86400
TXT"_4bcrxyd5c27f5gkurcm78061slmzi8j"86400
TXT"_iuwz7nqc9yo7cbm1d3ouvtorypd4qdt"86400
TXT"c5b576szrwprgfj7dt064jsc2hk50prp"86400
TXT"c6ly78zs5949h1p92qnlg85bdg4t41jj"86400
TXT"dwgv68r9y354986dmp74wxlyvj06t8cr"86400
TXT"kbg30nzk7lyxq4xqrz9db9c2r9ljzss6"86400
TXT"wpnv3wbbchbnlysjtlmmd1tj0jkm21kw"86400
TXT"y62slmnvrymd6t9b8dxkszr8nfgh17c5"86400
TXT"v=spf1 redirect=_spf-corporate.ionos.com"3600
TXT"facebook-domain-verification=8rlr75mi1gdn3pgo9wcqeagy1hk0ow"86400
TXT"globalsign-domain-verification=F6A0EB067AAA6A2009DAFA1EEE873319"600
TXT"globalsign-domain-verification=c5aa998f9778b35c3da32dbb6baa3a7e"600
TXT"google-site-verification=MO-KgJpyE5PbWnpsJH7DtRnI2NRbNixrdno74TDQBLc"86400
TXT"google-site-verification=QBNdJBkQf5rJLQ00q0oA3RVxwcFa-4lozN_UMxk4PDs"86400
TXT"google-site-verification=dA1Y8wnCkeBm3E0njx6kDREOOCFNwyYh7_8lDtUkIbo"86400
TXT"6/24k1PzgjP8W5XBBm4Xdg5tZUe/1c2Z6alcdMESg7vRWElo5WThgyYoT9dJbyckpEWnnMPgwwP9gpiKomTukA=="86400
TXT"_telesec-domain-validation=356756_2026-01-19_hjGhLZGLoDOmzPjUeUFTxBhM2vsWUIKoEy3F9K5rapNGKFj0oX"86400
TXT"_telesec-domain-validation=358289_2026-02-19_uugDsIhhuZTo8xyUxnp5LImlwMSoQ5UD6v7aJYdftdvl7H3gDj"86400
TXT"_telesec-domain-validation=359265_2026-09-07_ihc2zC4MRV0wQt9cm69ohQWhaFmKDGLBWkvaBDcCwFy0lDMHjI"86400
CAA0 issuewild "amazontrust.com"86400
CAA0 issuewild "digicert.com"86400
CAA0 issue "amazontrust.com"86400
CAA0 issue "digicert.com"86400
CAA0 issuewild "telesec.de"86400
CAA0 issuewild "letsencrypt.org"86400
CAA0 issue "telesec.de"86400
CAA0 issue "sectigo.com"86400
CAA0 issue "letsencrypt.org"86400
CAA0 issuewild "sectigo.com"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1d, NS 2d. The NS TTL at the parent is 1d and in the zone 2d; 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: amazontrust.com, digicert.com, telesec.de, letsencrypt.org, sectigo.com.