1und1.de

Checked 21 October 2026, 21:27 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 4 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 2607:f1c0:fe:53:185:132:34:200 2001:8d8:fe:53:0:d9a0:52c8:100AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS8560 IONOS-AS - IONOS SE, DE-
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.org217.160.83.200 185.132.35.200 2001:8d8:fe:53:0:d9a0:53c8:100 2607:f1c0:fe:53:185:132:35:200AS8560 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-

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, 3 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, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 185.132.34.200NOERROR, 3 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 2607:f1c0:fe:53:185:132:34:200NOERROR, 4 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.com 2001:8d8:fe:53:0:d9a0:52c8:100NOERROR, 10 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, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2001:8d8:fe:53:0:d9a0:50c8:100NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.de 2607:f1c0:fe:53:185:132:32:200NOERROR, 4 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 185.132.35.200NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2001:8d8:fe:53:0:d9a0:53c8:100NOERROR, 10 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns-1and1.ui-dns.org 2607:f1c0:fe:53:185:132:35:200NOERROR, 4 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 2013093310 · primary ns-1and1.ui-dns.de

Found

Primary (MNAME)
ns-1and1.ui-dns.de
Contact (RNAME)
dnsadmin.1und1.de
Serial
2013093310
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns-1and1.ui-dns.biz (217.160.81.200)2013093310
ns-1and1.ui-dns.biz (185.132.33.200)2013093310
ns-1and1.ui-dns.biz (2001:8d8:fe:53:0:d9a0:51c8:100)2013093310
ns-1and1.ui-dns.biz (2607:f1c0:fe:53:185:132:33:200)2013093310
ns-1and1.ui-dns.com (185.132.34.200)2013093310
ns-1and1.ui-dns.com (217.160.82.200)2013093310
ns-1and1.ui-dns.com (2607:f1c0:fe:53:185:132:34:200)2013093310
ns-1and1.ui-dns.com (2001:8d8:fe:53:0:d9a0:52c8:100)2013093310
ns-1and1.ui-dns.de (217.160.80.200)2013093310
ns-1and1.ui-dns.de (185.132.32.200)2013093310
ns-1and1.ui-dns.de (2001:8d8:fe:53:0:d9a0:50c8:100)2013093310
ns-1and1.ui-dns.de (2607:f1c0:fe:53:185:132:32:200)2013093310
ns-1and1.ui-dns.org (217.160.83.200)2013093310
ns-1and1.ui-dns.org (185.132.35.200)2013093310
ns-1and1.ui-dns.org (2001:8d8:fe:53:0:d9a0:53c8:100)2013093310
ns-1and1.ui-dns.org (2607:f1c0:fe:53:185:132:35:200)2013093310

Checks

  • ✓ Serial 2013093310 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1and1.ui-dns.de is one of the listed nameservers.
  • ✓ Contact dnsadmin@1und1.de #25
    The SOA RNAME dnsadmin.1und1.de means dnsadmin@1und1.de.
  • ✓ Timestamp serial #26
    The serial 2013093310 is a Unix timestamp (2033-10-16 16:35 UTC).

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

44 records at the apex

Found

Read from
217.160.81.200:53
TypeValueTTL
SOAns-1and1.ui-dns.de. dnsadmin.1und1.de. 2013093310 10800 3600 604800 60086400
NSns-1and1.ui-dns.biz.86400
NSns-1and1.ui-dns.org.86400
NSns-1and1.ui-dns.com.86400
NSns-1and1.ui-dns.de.86400
A217.160.72.6300
AAAA2001:8d8:5ff:7::1:3300
MX10 mxint02.1and1.com.600
MX10 mxint01.1and1.com.600
TXT"MS=ms72401757"3600
TXT"MS=ms60767331"3600
TXT"y19zp3xfq9q6h3sxtgdxnztm1t1cyvyn"300
TXT"google-site-verification=FfeqcVTO1mee1wYkB9yM6QrLZOyme1zf9vtZUXp-qls"300
TXT"google-site-verification=scsrjP2WSsEhQuHP-JwaMt73YzmcDUM2ypvi_mq-HL4"86400
TXT"google-site-verification=iK1ntngp22OUuEF9QgtlJYsoGOKBox8nEKnlbWvFVTY"86400
TXT"86400" "atlassian-domain-verification=KAEkvhtoErKIDdiyb7e0wzavuISNOteHVzuoJX6M4VNN5REeLHY0BhBUYNFjFEt9"86400
TXT"facebook-domain-verification=9ezukrd1aasxq2gicbnxyo6whehtxk"86400
TXT"docusign=5b733e1d-784b-4f07-98d9-4262d190eef3"86400
TXT"google-site-verification=NJHrqsz0okE4ONv7jdtK4qYbktUxf_FWxAphPoebo6E"86400
TXT"docker-verification=5991cc66-098a-4205-b8f1-c1d7a59c43a8"86400
TXT"68wp9cb25cqsbvwr51vv5rpss5ym9tss"86400
TXT"miro-verification=f357f6589aae087ac2628eb14ffb483eaad4afd8"86400
TXT"rmf0qmd6yy6tqs25h1dxqq4jdnhyp3p9"86400
TXT"nm9md4l1ln3j145qtzdzg0913x49nk4l"86400
TXT"l3chxv5x4kgsntw0pql423z0kwpbb9y4"86400
TXT"browserstack-domain-verification=ce54a9ff-ac06-40ce-9e56-5a9e156053dd"86400
TXT"60ch0ggghydqhmxbnyz1jv01z4j3hgcj"86400
TXT"mdbct0g56gmy5gryrmd4nmb2lbsm9pmq"86400
TXT"mindmanager-verification=1ea2fdbe5379cc0f8cfe95fa5ecfdc1ff943a7bd015aed8afb5717dad146adac"86400
TXT"_ujy7u3gmmgfgqttlix10167nhkrg7w8"86400
TXT"_telesec-domain-validation=336264_2024-12-06_w7hJGfkIRhoTpHPfHGMYLLyHMWQZv6IFyogpa8jm7RTYNjsXad"86400
TXT"canva-site-verification=hXpNeRepGTb5z9-PE6yYeg"86400
TXT"figma-domain-verification=fbc6bfa04d2d2fd5e3a4fa49366e95c0f56c70b358263a4cc7cd72ba8bc573f8-1749541366"86400
TXT"kTWjWA7d16oGqSDCEOm5V9LMs4jAwKT85TH5GO2X4/WzQuw0/+CdMYO6Ta4XORCAxxmtcl7Ta1eDNF/oALKyNQ=="120
TXT"_vu30k3kbho6lel2aw7wz0l7924x7xrp"86400
TXT"_ch2kennufs63l44dk43iplssxf901x7"86400
TXT"v=spf1 include:_spf.1und1.de include:_uicsspf.1und1.de include:_spf.zimpel.de include:spf.protection.outlook.com -all"3600
TXT"_telesec-domain-validation=2026-05-12_sPuFSwY2WZ9frjm3194EeJvrj7cvqZNddV40rzwoNRLUjohqxX"86400
TXT"atlassian-sending-domain-verification=9039c0d8-3025-4af4-8a92-2a187ad9eddb"86400
TXT"_telesec-domain-validation=2026-06-03_OujcD7jbRxoU6hUeb9Olh143VHX9lR75n5l17I9qnZ9jZtXYFK"86400
TXT"ibmid=0a438757-7850-4d25-bca7-557535407a08"86400
TXT"_9h9qhubfpagmjz2ne79b3ptrlnkbqql"86400
TXT"_dnsauth.1und1.de." "300" "IN" "TXT" "202609070941234h6x1o9ngot5ycn4u3m3wxc6aome8hv5lmx1h5r1gnfan1wdl7"86400
TXT"_nd6t9lcypgs27r9pvwjyu697sr14ufw"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 10m, NS 1d.
  • ✓ 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