merkur.de

Checked 21 October 2026, 23:22 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 0 failed 6 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

anycast.regdns1.de, anycast.regdns2.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
anycast.regdns1.de, anycast.regdns2.net
NS in the zone
anycast.regdns1.de, anycast.regdns2.net
NameserverAddressesNetwork (AS)Glue
anycast.regdns1.de192.174.68.100 2001:67c:1bc::100AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT192.174.68.100 2001:67c:1bc::100
anycast.regdns2.net176.97.158.100 2001:67c:10b8::100AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: anycast.regdns1.de, anycast.regdns2.net.
    #6
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
anycast.regdns1.de 192.174.68.100NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS
anycast.regdns1.de 2001:67c:1bc::100NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
anycast.regdns2.net 176.97.158.100NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1
anycast.regdns2.net 2001:67c:10b8::100NOERROR, 13 ms, authoritativenoyes / yesrefusedreg-wie1

Checks

  • ✓ All respond #14
    All 4 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: anycast.regdns1.de: "RcodeZero DNS"; anycast.regdns2.net: "reg-wie1".
    #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 2026102101 · primary anycast.regdns1.de

Found

Primary (MNAME)
anycast.regdns1.de
Contact (RNAME)
hostmaster.internetwire.de
Serial
2026102101
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
anycast.regdns1.de (192.174.68.100)2026102101
anycast.regdns1.de (2001:67c:1bc::100)2026102101
anycast.regdns2.net (176.97.158.100)2026102101
anycast.regdns2.net (2001:67c:10b8::100)2026102101

Checks

  • ✓ Serial 2026102101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver anycast.regdns1.de is one of the listed nameservers.
  • ✓ Contact hostmaster@internetwire.de #25
    The SOA RNAME hostmaster.internetwire.de means hostmaster@internetwire.de.
  • ✓ Date-based serial #26
    The serial 2026102101 follows the YYYYMMDDnn convention (2026-10-21).

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

16 records at the apex

Found

Read from
192.174.68.100:53
TypeValueTTL
SOAanycast.regdns1.de. hostmaster.internetwire.de. 2026102101 28800 7200 604800 864003600
NSanycast.regdns1.de.600
NSanycast.regdns2.net.600
A193.218.202.89300
MX10 merkur-de.mail.protection.outlook.com.600
TXT"MS=ms18547019"600
TXT"MS=ms89234765"600
TXT"apple-domain-verification=JwIkqvcB5MXV7sXA"600
TXT"facebook-domain-verification=r1r43akeu36l668an9pos239rox8zi"600
TXT"pinterest-site-verification=392ca7bbfa31df8933d750f3df0e5bc9"600
TXT"pinterest-site-verification=736f1ace50fec1a96230e760296afa5a"600
TXT"google-site-verification=1BIP2v4g3CdOn4vkSgv43JZJn6rbOiY_TjcNZV4Nq5E"600
TXT"google-site-verification=9DDUx7Mh7HdxyQuvrKtq9DmfeTPt3Nj9nQLcwzGRbtQ"600
TXT"google-site-verification=XVEVECeJVYBUo2ByPEVV2CoV27XPDPC3Qz55xvNErwo"600
TXT"google-site-verification=XbfePUXEXC4woQyFNMqJWkm1yGnuytZOtBPD7I-2ne0"600
TXT"v=spf1 include:spf.protection.outlook.com include:spf.ippen-media.de ~all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 10m, NS 10m. The NS TTL at the parent is 1d and in the zone 10m; 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