dekra.de

Checked 21 October 2026, 22:12 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 5 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

info

auth04.ns.de.uu.net, auth20.ns.wcom.com, auth40.ns.uu.net, auth54.ns.de.uu.net, ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
auth04.ns.de.uu.net, auth20.ns.wcom.com, auth40.ns.uu.net, auth54.ns.de.uu.net, ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net
NS in the zone
auth04.ns.de.uu.net, auth20.ns.wcom.com, auth40.ns.uu.net, auth54.ns.de.uu.net, ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net
NameserverAddressesNetwork (AS)Glue
auth04.ns.de.uu.net192.76.144.17 2001:600:1c0:e000::35:9AS702 UUNET - Verizon Business, US AS702 UUNET - Verizon Business, US-
auth20.ns.wcom.com198.6.100.37AS701 UUNET - Verizon Business, US-
auth40.ns.uu.net198.6.1.18AS701 UUNET - Verizon Business, US-
auth54.ns.de.uu.net194.128.171.100 2001:600:1c0:e001::35:9AS702 UUNET - Verizon Business, US AS702 UUNET - Verizon Business, US-
ns1.rrpproxy.net193.227.117.226 2a04:2b00:14cc::226AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns2.rrpproxy.net194.50.187.226 2a04:2b00:14dd::226AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns3.rrpproxy.net194.0.182.226 2a04:2b00:14ee::226AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • ✓ 7 nameservers #6
    Delegated to auth04.ns.de.uu.net, auth20.ns.wcom.com, auth40.ns.uu.net, auth54.ns.de.uu.net, ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net.
  • ✓ 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 7 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 6 addresses; AS701 (UUNET - Verizon Business, US): 2 addresses; AS702 (UUNET - Verizon Business, US): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: auth20.ns.wcom.com, auth40.ns.uu.net.
    #13

Nameservers

info

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
auth04.ns.de.uu.net 192.76.144.17NOERROR, 8 ms, authoritativenoyes / yesrefused-
auth04.ns.de.uu.net 2001:600:1c0:e000::35:9NOERROR, 8 ms, authoritativenoyes / yesrefused-
auth20.ns.wcom.com 198.6.100.37NOERROR, 162 ms, authoritativenoyes / yesrefused-
auth40.ns.uu.net 198.6.1.18NOERROR, 98 ms, authoritativenoyes / yesrefused-
auth54.ns.de.uu.net 194.128.171.100NOERROR, 17 ms, authoritativenoyes / yesrefused-
auth54.ns.de.uu.net 2001:600:1c0:e001::35:9NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns1.rrpproxy.net 193.227.117.226NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns1.rrpproxy.net 2a04:2b00:14cc::226NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.rrpproxy.net 194.50.187.226NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1
ns2.rrpproxy.net 2a04:2b00:14dd::226NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1
ns3.rrpproxy.net 194.0.182.226NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns3.rrpproxy.net 2a04:2b00:14ee::226NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS

Checks

  • ✓ All respond #14
    All 12 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: ns1.rrpproxy.net: "RcodeZero DNS"; ns2.rrpproxy.net: "reg-wie1"; ns3.rrpproxy.net: "RcodeZero DNS".
    #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 2026101301 · primary auth04.ns.de.uu.net

Found

Primary (MNAME)
auth04.ns.de.uu.net
Contact (RNAME)
hostmaster.de.uu.net
Serial
2026101301
Refresh / retry
28800 s / 7200 s
Expire
2678400 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
auth04.ns.de.uu.net (192.76.144.17)2026101301
auth04.ns.de.uu.net (2001:600:1c0:e000::35:9)2026101301
auth20.ns.wcom.com (198.6.100.37)2026101301
auth40.ns.uu.net (198.6.1.18)2026101301
auth54.ns.de.uu.net (194.128.171.100)2026101301
auth54.ns.de.uu.net (2001:600:1c0:e001::35:9)2026101301
ns1.rrpproxy.net (193.227.117.226)2026101301
ns1.rrpproxy.net (2a04:2b00:14cc::226)2026101301
ns2.rrpproxy.net (194.50.187.226)2026101301
ns2.rrpproxy.net (2a04:2b00:14dd::226)2026101301
ns3.rrpproxy.net (194.0.182.226)2026101301
ns3.rrpproxy.net (2a04:2b00:14ee::226)2026101301

Checks

  • ✓ Serial 2026101301 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 31d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver auth04.ns.de.uu.net is one of the listed nameservers.
  • ✓ Contact hostmaster@de.uu.net #25
    The SOA RNAME hostmaster.de.uu.net means hostmaster@de.uu.net.
  • ✓ Date-based serial #26
    The serial 2026101301 follows the YYYYMMDDnn convention (2026-10-13).

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

21 records at the apex

Found

Read from
192.76.144.17:53
TypeValueTTL
SOAauth04.ns.de.uu.net. hostmaster.de.uu.net. 2026101301 28800 7200 2678400 180086400
NSauth20.ns.wcom.com.86400
NSauth54.ns.de.uu.net.86400
NSns2.rrpproxy.net.86400
NSns3.rrpproxy.net.86400
NSauth04.ns.de.uu.net.86400
NSns1.rrpproxy.net.86400
NSauth40.ns.uu.net.86400
A20.79.91.135600
MX10 mx01.hornetsecurity.com.3600
MX30 mx03.hornetsecurity.com.3600
MX20 mx02.hornetsecurity.com.3600
MX40 mx04.hornetsecurity.com.3600
TXT"qnasns0pi59onh809k0dffv7ef"86400
TXT"linkedin-site-verification=1d2eef7c-9e1b-4d09-80d0-e49f8352bf37"86400
TXT"is072tpn70dp6pi6flbt5lud42"86400
TXT"google-site-verification=c-AOQvCNlRPxf5lVQW3EMoGSftYNMLW8odffXIvuFaU"86400
TXT"v=spf1 ip4:31.47.234.6 ip4:31.47.234.6 ip4:116.203.188.178 ip6:2a00:f820:417::6129:4040 ip6:2a00:f820:417:2:51:92:b48a:f910 ip6:2a01:4f8:c2c:6e9f::1 include:antispameurope.com include:spf.protection.outlook.com -all"86400
TXT"nbis6tn7egmer8nmltsbf7i96d"86400
TXT"_24pi4ys4uohbb6msaihbsfkavilsraj"86400
TXT"glv646i1ufi6s0sskov6tbpcsc"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 1h, 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