rosenthal.de

Checked 22 October 2026, 00:01 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

warn

ns.routing.net, ns8.routing.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.routing.net, ns8.routing.net
NS in the zone
ns.routing.net, ns8.routing.net, ns9.routing.net
NameserverAddressesNetwork (AS)Glue
ns.routing.net134.0.30.178AS48823 AS48823 - Hosting.de GmbH, DE-
ns8.routing.net194.50.113.2AS41637 ROUTING-ANYCAST - Hosting.de GmbH, DE-
ns9.routing.net (zone only)194.126.196.2AS31400 ACCELERATED-IT - firstcolo GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.routing.net, ns8.routing.net.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns9.routing.net. ns.routing.net, ns8.routing.net, ns9.routing.net report NS ns.routing.net ns8.routing.net ns9.routing.net.
    #7
  • ✓ 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 3 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS31400 (ACCELERATED-IT - firstcolo GmbH, DE): 1 address; AS41637 (ROUTING-ANYCAST - Hosting.de GmbH, DE): 1 address; AS48823 (AS48823 - Hosting.de GmbH, DE): 1 address.
  • 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.routing.net 134.0.30.178NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns8.routing.net 194.50.113.2NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns9.routing.net 194.126.196.2NOERROR, 8 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 2026081100 · primary ns.routing.net

Found

Primary (MNAME)
ns.routing.net
Contact (RNAME)
bender.cekom.de
Serial
2026081100
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns.routing.net (134.0.30.178)2026081100
ns8.routing.net (194.50.113.2)2026081100
ns9.routing.net (194.126.196.2)2026081100

Checks

  • ✓ Serial 2026081100 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.routing.net is one of the listed nameservers.
  • ✓ Contact bender@cekom.de #25
    The SOA RNAME bender.cekom.de means bender@cekom.de.
  • ✓ Date-based serial #26
    The serial 2026081100 follows the YYYYMMDDnn convention (2026-08-11).

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

18 records at the apex

Found

Read from
134.0.30.178:53
TypeValueTTL
SOAns.routing.net. bender.cekom.de. 2026081100 14400 3600 604800 90086400
NSns9.routing.net.3600
NSns8.routing.net.3600
NSns.routing.net.3600
A104.18.179.33300
A104.18.178.33300
MX10 rosenthal.in.tmes.trendmicro.eu.3600
TXT"okuPuxXeKsiESo8R77f9CdghC5KIFZpMmScvEywcpk2jM+4rGkjTDHHoMS9vRB/JeN9xheGkuWfW2Ypoy5f+9g=="600
TXT"hibp-verify=dweb_nun8ydl765lmd5n9n4bu46yz"60
TXT"mandrill_verify.gMTOQ7eGFE0qOxPQ8WTxbQ"600
TXT"BXr88s3DhigQ2v2qmwe+znL4v1Z2QZ5X08kPSReIyJt5uXOMbpAdAZD79rfovkGneg6RmZEb1eGvw16OKDioCQ=="600
TXT"apple-domain-verification=VlPKRHr0zF6pUhhO"600
TXT"MS=ms59481619"600
TXT"google-site-verification=SmfnhEAmHNSaPzJwhEE7Ma_WMpR7zE8y73yjkwR7kIo"3600
TXT"klaviyo-site-verification=VzLdqi"600
TXT"google-site-verification=iXg0xSnaKalxv2vQg0hYCHpg3nKIAeSAq4TbL6mAwZM"600
TXT"v=spf1 a:scm.rosenthal.de include:spf.mailjet.com include:spf.mandrillapp.com include:mail.zendesk.com include:spf.tmes.trendmicro.com ~all"60
TXT"tmes=53b474d6fef2b1f7aad9072b6db3800f"300

Checks

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