metroag.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

a1-202.akam.net, a11-64.akam.net, a16-64.akam.net, a22-66.akam.net, a26-65.akam.net, a7-67.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-202.akam.net, a11-64.akam.net, a16-64.akam.net, a22-66.akam.net, a26-65.akam.net, a7-67.akam.net
NS in the zone
a1-202.akam.net, a11-64.akam.net, a16-64.akam.net, a22-66.akam.net, a26-65.akam.net, a7-67.akam.net
NameserverAddressesNetwork (AS)Glue
a1-202.akam.net193.108.91.202 2600:1401:2::caAS21342 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-
a16-64.akam.net23.211.132.64 2600:1406:1b::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-66.akam.net23.211.61.66 2600:1480:7800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a26-65.akam.net23.74.25.65 2600:1480:b800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-67.akam.net23.61.199.67 2600:1406:32::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-202.akam.net, a11-64.akam.net, a16-64.akam.net, a22-66.akam.net, a26-65.akam.net, a7-67.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
a1-202.akam.net 193.108.91.202NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a1-202.akam.net 2600:1401:2::caNOERROR, 4 ms, authoritativenoyes / yesrefused41824.7
a11-64.akam.net 84.53.139.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a11-64.akam.net 2600:1480:1::40NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a16-64.akam.net 23.211.132.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a16-64.akam.net 2600:1406:1b::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a22-66.akam.net 23.211.61.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a22-66.akam.net 2600:1480:7800::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a26-65.akam.net 23.74.25.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a26-65.akam.net 2600:1480:b800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a7-67.akam.net 23.61.199.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a7-67.akam.net 2600:1406:32::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9

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: a1-202.akam.net: "41824.8"; a1-202.akam.net: "41824.7"; a11-64.akam.net: "41824.7"; a11-64.akam.net: "41824.8"; a16-64.akam.net: "48878.30"; a16-64.akam.net: "48878.26"; a22-66.akam.net: "48878.31"; a22-66.akam.net: "48878.26"; a26-65.akam.net: "48878.33"; a7-67.akam.net: "41824.4"; a7-67.akam.net: "41824.9". 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 2009021964 · primary ns.mgi.de

Found

Primary (MNAME)
ns.mgi.de
Contact (RNAME)
hostmaster.mgi.de
Serial
2009021964
Refresh / retry
600 s / 300 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-202.akam.net (193.108.91.202)2009021964
a1-202.akam.net (2600:1401:2::ca)2009021964
a11-64.akam.net (84.53.139.64)2009021964
a11-64.akam.net (2600:1480:1::40)2009021964
a16-64.akam.net (23.211.132.64)2009021964
a16-64.akam.net (2600:1406:1b::40)2009021964
a22-66.akam.net (23.211.61.66)2009021964
a22-66.akam.net (2600:1480:7800::42)2009021964
a26-65.akam.net (23.74.25.65)2009021964
a26-65.akam.net (2600:1480:b800::41)2009021964
a7-67.akam.net (23.61.199.67)2009021964
a7-67.akam.net (2600:1406:32::43)2009021964

Checks

  • ✓ Serial 2009021964 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.
  • ✓ Date-based serial #26
    The serial 2009021964 follows the YYYYMMDDnn convention (2009-02-19).

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

13 records at the apex

Found

Read from
193.108.91.202:53
TypeValueTTL
SOAns.mgi.de. hostmaster.mgi.de. 2009021964 600 300 2419200 9003600
NSa26-65.akam.net.3600
NSa16-64.akam.net.3600
NSa22-66.akam.net.3600
NSa11-64.akam.net.3600
NSa7-67.akam.net.3600
NSa1-202.akam.net.3600
A2.16.204.9220
A2.16.204.9420
AAAA2a02:26f0:b700:5::210:cc1920
AAAA2a02:26f0:b700:5::210:cc0b20
TXT"acas.mnom.io=DNSint"3600
TXT"v=spf1 exists:%{i}.spf.hc2116-98.eu.iphmx.com -all"3600

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