ag-energiebilanzen.de

Checked 21 October 2026, 21:28 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 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

agreement-webserver.agreement-berlin.de, pdns02.domaincontrol.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
agreement-webserver.agreement-berlin.de, pdns02.domaincontrol.com
NS in the zone
agreement-webserver.agreement-berlin.de, pdns02.domaincontrol.com
NameserverAddressesNetwork (AS)Glue
agreement-webserver.agreement-berlin.de92.205.224.225AS21499 GODADDY-SXB - Host Europe GmbH, DE92.205.224.225
pdns02.domaincontrol.com173.201.78.50 2603:5:22e0::32AS44273 GODADDY-DNS - Host Europe GmbH, DE AS44273 GODADDY-DNS - Host Europe GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: agreement-webserver.agreement-berlin.de, pdns02.domaincontrol.com.
    #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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS21499 (GODADDY-SXB - Host Europe GmbH, DE): 1 address; AS44273 (GODADDY-DNS - Host Europe GmbH, DE): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: agreement-webserver.agreement-berlin.de.
    #13

Nameservers

pass

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
agreement-webserver.agreement-berlin.de 92.205.224.225NOERROR, 8 ms, authoritativenoyes / yesrefused-
pdns02.domaincontrol.com 173.201.78.50NOERROR, 3 ms, authoritativenoyes / yesrefused-
pdns02.domaincontrol.com 2603:5:22e0::32NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 3 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026091801 · primary agreement-webserver.agreement-berlin.de

Found

Primary (MNAME)
agreement-webserver.agreement-berlin.de
Contact (RNAME)
braun.agreement-berlin.de
Serial
2026091801
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
agreement-webserver.agreement-berlin.de (92.205.224.225)2026091801
pdns02.domaincontrol.com (173.201.78.50)2026091801
pdns02.domaincontrol.com (2603:5:22e0::32)2026091801

Checks

  • ✓ Serial 2026091801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver agreement-webserver.agreement-berlin.de is one of the listed nameservers.
  • ✓ Contact braun@agreement-berlin.de #25
    The SOA RNAME braun.agreement-berlin.de means braun@agreement-berlin.de.
  • ✓ Date-based serial #26
    The serial 2026091801 follows the YYYYMMDDnn convention (2026-09-18).

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

7 records at the apex

Found

Read from
92.205.224.225:53
TypeValueTTL
SOAagreement-webserver.agreement-berlin.de. braun.agreement-berlin.de. 2026091801 10800 3600 604800 1080086400
NSpdns02.domaincontrol.com.1
NSagreement-webserver.agreement-berlin.de.1
A92.205.224.22586400
MX10 mxtls.expurgate.net.86400
TXT"v=spf1 a mx include:secureserver.net -all"86400
TXT"brevo-code:f279e61fd5b3ee63978411ff10da1e42"86400

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: NS (1s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1s; 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