aeg.de

Checked 21 October 2026, 21:28 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 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

a1-199.akam.net, a10-64.akam.net, a11-65.akam.net, a2-66.akam.net, a3-67.akam.net, a6-64.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-199.akam.net, a10-64.akam.net, a11-65.akam.net, a2-66.akam.net, a3-67.akam.net, a6-64.akam.net
NS in the zone
a1-199.akam.net, a10-64.akam.net, a11-65.akam.net, a2-66.akam.net, a3-67.akam.net, a6-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-199.akam.net193.108.91.199 2600:1401:2::c7AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-64.akam.net96.7.50.64 2600:1480:d000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-65.akam.net84.53.139.65 2600:1480:1::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a2-66.akam.net95.100.174.66 2600:1480:7000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-67.akam.net96.7.49.67 2600:1408:1c::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a6-64.akam.net23.211.133.64 2600:1401:1::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-199.akam.net, a10-64.akam.net, a11-65.akam.net, a2-66.akam.net, a3-67.akam.net, a6-64.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
a1-199.akam.net 193.108.91.199NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a1-199.akam.net 2600:1401:2::c7NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a10-64.akam.net 96.7.50.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a10-64.akam.net 2600:1480:d000::40NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a11-65.akam.net 84.53.139.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a11-65.akam.net 2600:1480:1::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a2-66.akam.net 95.100.174.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a2-66.akam.net 2600:1480:7000::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a3-67.akam.net 96.7.49.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a3-67.akam.net 2600:1408:1c::43NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a6-64.akam.net 23.211.133.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a6-64.akam.net 2600:1401:1::40NOERROR, 4 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: a1-199.akam.net: "41824.7"; a1-199.akam.net: "41824.4"; a10-64.akam.net: "48878.29"; a11-65.akam.net: "41824.10"; a11-65.akam.net: "41824.5"; a2-66.akam.net: "48878.30"; a2-66.akam.net: "48878.26"; a3-67.akam.net: "41824.7"; a3-67.akam.net: "41824.11"; a6-64.akam.net: "48878.33"; a6-64.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

info

serial 2023091571 · primary udns1.cscdns.net

Found

Primary (MNAME)
udns1.cscdns.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2023091571
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
a1-199.akam.net (193.108.91.199)2023091571
a1-199.akam.net (2600:1401:2::c7)2023091571
a10-64.akam.net (96.7.50.64)2023091571
a10-64.akam.net (2600:1480:d000::40)2023091571
a11-65.akam.net (84.53.139.65)2023091571
a11-65.akam.net (2600:1480:1::41)2023091571
a2-66.akam.net (95.100.174.66)2023091571
a2-66.akam.net (2600:1480:7000::42)2023091571
a3-67.akam.net (96.7.49.67)2023091571
a3-67.akam.net (2600:1408:1c::43)2023091571
a6-64.akam.net (23.211.133.64)2023091571
a6-64.akam.net (2600:1401:1::40)2023091571

Checks

  • ✓ Serial 2023091571 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 3h.
  • i
    Hidden master
    The primary nameserver udns1.cscdns.net 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@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Date-based serial #26
    The serial 2023091571 follows the YYYYMMDDnn convention (2023-09-15).

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

22 records at the apex

Found

Read from
193.108.91.199:53
TypeValueTTL
SOAudns1.cscdns.net. hostmaster.cscdns.net. 2023091571 10800 3600 1209600 108003600
NSa6-64.akam.net.86400
NSa1-199.akam.net.86400
NSa3-67.akam.net.86400
NSa11-65.akam.net.86400
NSa2-66.akam.net.86400
NSa10-64.akam.net.86400
A2.16.204.9620
A2.16.204.6820
AAAA2a02:26f0:b700:4::210:cc6020
AAAA2a02:26f0:b700:4::210:cc4420
MX10 mxb-00322602.gslb.pphosted.com.60
MX10 mxa-00322602.gslb.pphosted.com.60
TXT"facebook-domain-verification=ud4sldjgvetxievr653jhlsjadg5qs"300
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all"300
TXT"3s3r4cl8jyt922vxm5b19m67vg8bjm4p"300
TXT"google-site-verification=z5mtFs0yb4cJk8gvdLtgZ_xaeXFW7kb8W7Zj_25Rrzo"300
TXT"xqz22mdxf4bgvd2m1b1w46nf6k9f0hdc"300
TXT"google-site-verification=sKDhT6SvPC_NEtu4rPxpisx2BjIbPiOAKu3pINXGrWk"300
TXT"MS=ms43291623"300
TXT"google-site-verification=4R0UBzL1rpKMZaM21WSSNMncbl-R9vCrHd-UEIJtYU4"300
TXT"_o9c79491sxz7q0l3d1oo2f6s5yspu7r"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s), MX (1m). Low TTLs are useful just before a planned change.
    #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