metro.de

Checked 21 October 2026, 23:22 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 warnings 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

a1-191.akam.net, a11-64.akam.net, a13-66.akam.net, a16-65.akam.net, a28-64.akam.net, a8-64.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-191.akam.net, a11-64.akam.net, a13-66.akam.net, a16-65.akam.net, a28-64.akam.net, a8-64.akam.net
NS in the zone
a1-191.akam.net, a11-64.akam.net, a13-66.akam.net, a16-65.akam.net, a28-64.akam.net, a8-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-191.akam.net193.108.91.191 2600:1401:2::bfAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-64.akam.net84.53.139.64 2600:1480:1::40AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-66.akam.net2.22.230.66 2600:1480:800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a16-65.akam.net23.211.132.65 2600:1406:1b::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a28-64.akam.net95.100.173.64 2600:1480:d800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a8-64.akam.net2.16.40.64 2600:1403:a::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-191.akam.net, a11-64.akam.net, a13-66.akam.net, a16-65.akam.net, a28-64.akam.net, a8-64.akam.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 6 IPv4 /24s and 6 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
  • i
    All nameserver names under .net
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-191.akam.net 193.108.91.191NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a1-191.akam.net 2600:1401:2::bfNOERROR, 5 ms, authoritativenoyes / yesrefused41824.8
a11-64.akam.net 84.53.139.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a11-64.akam.net 2600:1480:1::40NOERROR, 8 ms, authoritativenoyes / yesrefused41824.5
a13-66.akam.net 2.22.230.66NOERROR, 8 ms, authoritativenoyes / yesrefused41824.9
a13-66.akam.net 2600:1480:800::42NOERROR, 9 ms, authoritativenoyes / yesrefused41824.5
a16-65.akam.net 23.211.132.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a16-65.akam.net 2600:1406:1b::41NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a28-64.akam.net 95.100.173.64NOERROR, 7 ms, authoritativenoyes / yesrefused48878.30
a28-64.akam.net 2600:1480:d800::40NOERROR, 8 ms, authoritativenoyes / yesrefused48878.31
a8-64.akam.net 2.16.40.64NOERROR, 8 ms, authoritativenoyes / yesrefused48878.27
a8-64.akam.net 2600:1403:a::40NOERROR, 8 ms, authoritativenoyes / yesrefused48878.32

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-191.akam.net: "41824.10"; a1-191.akam.net: "41824.8"; a11-64.akam.net: "41824.9"; a11-64.akam.net: "41824.5"; a13-66.akam.net: "41824.9"; a13-66.akam.net: "41824.5"; a16-65.akam.net: "48878.32"; a16-65.akam.net: "48878.29"; a28-64.akam.net: "48878.30"; a28-64.akam.net: "48878.31"; a8-64.akam.net: "48878.27"; a8-64.akam.net: "48878.32". Hide or replace the version string.
    #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

warn

serial 2016104762 · primary ns.mgi.de

Found

Primary (MNAME)
ns.mgi.de
Contact (RNAME)
hostmaster.mgi.de
Serial
2016104762
Refresh / retry
600 s / 300 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-191.akam.net (193.108.91.191)2016104762
a1-191.akam.net (2600:1401:2::bf)2016104762
a11-64.akam.net (84.53.139.64)2016104762
a11-64.akam.net (2600:1480:1::40)2016104762
a13-66.akam.net (2.22.230.66)2016104762
a13-66.akam.net (2600:1480:800::42)2016104762
a16-65.akam.net (23.211.132.65)2016104762
a16-65.akam.net (2600:1406:1b::41)2016104762
a28-64.akam.net (95.100.173.64)2016104762
a28-64.akam.net (2600:1480:d800::40)2016104762
a8-64.akam.net (2.16.40.64)2016104762
a8-64.akam.net (2600:1403:a::40)2016104762

Checks

  • ✓ Serial 2016104762 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 10m is outside 20m–1d. Current values: refresh 10m, retry 5m, expire 28d, negative TTL 15m.
    #23
  • i
    Hidden master
    The primary nameserver ns.mgi.de is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@mgi.de #25
    The SOA RNAME hostmaster.mgi.de means hostmaster@mgi.de.
  • ✓ Timestamp serial #26
    The serial 2016104762 is a Unix timestamp (2033-11-20 13:06 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

warn

32 records at the apex

Found

Read from
193.108.91.191:53
TypeValueTTL
SOAns.mgi.de. hostmaster.mgi.de. 2016104762 600 300 2419200 9003600
NSa13-66.akam.net.3600
NSa28-64.akam.net.3600
NSa1-191.akam.net.3600
NSa8-64.akam.net.3600
NSa11-64.akam.net.3600
NSa16-65.akam.net.3600
A2.16.204.9120
A2.16.204.8920
AAAA2a02:26f0:b700:5::210:cc1920
AAAA2a02:26f0:b700:5::210:cc1320
MX10 mx1.hc611-36.eu.iphmx.com.3600
MX10 mx2.hc611-36.eu.iphmx.com.3600
TXT"google-site-verification=k-gPAmxUY9DHtXpxLUJ1y5Hei771bLpqbCOsHsOo7gI"60
TXT"v=spf1 include:spf.protection.outlook.com include:email.event-hub.ipreo.com include:ipreomail.com include:mailing.eqs.com ip4:213.32.181.165 ip4:212.18.1.50 ip4:212.18.21.82 ip4:34.142.108.204 ip4:35.158.67.243 ip4:35.158.71.15" " ip4:18.184.155.228 ip4:18.184.214.37 exists:%{i}.spf.hc611-36.eu.iphmx.com exists:%{i}.spf.hc2116-98.eu.iphmx.com redirect=spf.metro.info"60
TXT"adobe-idp-site-verification=5f7c11f035b351c4eb08e4e85818ec5ecade7fc7dfca2eb36d5776ac267a507d"60
TXT"kRDaMsbqpXGrUoG8PaAOvcYCAiTp9+4Dv6U8W0+5f64hYqmUTvMnvGkVzDrOHFhExj8fdMxjFwcaIV1mwZNjuQ=="60
TXT"infoblox-domain-mastery=482da27cfa18eba6ac5ca50c58b5e2856ec903d89a5e312fb017ca7c53c075f3d6"60
TXT"atlassian-domain-verification=vzjGnJ2NafQoIj8afRTdXZJEwgDCzIdukNae/3xtjDwyadCSdGc1SQ3Ffob1gKxq"60
TXT"sinch-domain-verification=4cdb734b-1d40-492b-ad81-62229fbd88c2"60
TXT"ciscocidomainverification=77b8ab16d7376fe0553c8d1f503e867460c82c6289c90735cfb91560d0086bab"60
TXT"adobe-sign-verification=6e2467b28186d52ec0c30fd46729af1f"60
TXT"brevo-code:6ef1bdca0140128a0b0cdffd769c529f"60
TXT"mgverify=100006c062f56b41e31e3ca95766b8dfcc3f18a685e24862c80314cb3ee29c53"60
TXT"miro-verification=1dfc8ae8f502aa37967be42ae4c74a5ea599061a"60
TXT"vmware-cloud-verification-82882658-dda8-440b-bb8e-3b35827349f0"60
TXT"apple-domain-verification=BpXOmKVHbBUbD8Hf"60
TXT"PshPg1Ygfdqn7vTUWiqsPv1Aawkmy5/FnoW0eswJJ1fLvVQKr8uJCkAmH1sFRQsjr0z+5w3mQ7WsATg2TzTNPw=="60
TXT"docusign=d4a191d6-44e9-4b79-8de8-6c082ade3357"60
TXT"uber-domain-verification=5641147c-d8f7-4593-9392-a5a8ae39a9a6"60
TXT"google-site-verification=7m6lAkSG7t2cFbCn1RI-9NG1BOr2kVSZons6-dYnQug"60
TXT"acas.mnom.io=DNSint"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
    #32
  • ✓ 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