pkw.de

Checked 21 October 2026, 23:50 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

warn

dns1.securewebsystems.net, dns2.securewebsystems.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns1.securewebsystems.net, dns2.securewebsystems.net
NS in the zone
dns1.securewebsystems.net, dns2.securewebsystems.net
NameserverAddressesNetwork (AS)Glue
dns1.securewebsystems.net91.198.228.19AS42446 VISCOMP-AS - Viscomp Ltd, BG-
dns2.securewebsystems.net45.156.111.20AS28701 VERTICAL-AS - vertical IT-Service GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.securewebsystems.net, dns2.securewebsystems.net.
    #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 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS28701 (VERTICAL-AS - vertical IT-Service GmbH, DE): 1 address; AS42446 (VISCOMP-AS - Viscomp Ltd, BG): 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

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.securewebsystems.net 91.198.228.19NOERROR, 37 ms, authoritativenoyes / yesrefused-
dns2.securewebsystems.net 45.156.111.20NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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 2026072901 · primary dns1.securewebsystems.net

Found

Primary (MNAME)
dns1.securewebsystems.net
Contact (RNAME)
support.securewebsystems.net
Serial
2026072901
Refresh / retry
86400 s / 10800 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
dns1.securewebsystems.net (91.198.228.19)2026072901
dns2.securewebsystems.net (45.156.111.20)2026072901

Checks

  • ✓ Serial 2026072901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 3h, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.securewebsystems.net is one of the listed nameservers.
  • ✓ Contact support@securewebsystems.net #25
    The SOA RNAME support.securewebsystems.net means support@securewebsystems.net.
  • ✓ Date-based serial #26
    The serial 2026072901 follows the YYYYMMDDnn convention (2026-07-29).

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

21 records at the apex

Found

Read from
91.198.228.19:53
TypeValueTTL
SOAdns1.securewebsystems.net. support.securewebsystems.net. 2026072901 86400 10800 604800 3003600
NSdns2.securewebsystems.net.3600
NSdns1.securewebsystems.net.3600
A94.156.146.473600
MX10 ASPMX.L.GOOGLE.COM.3600
MX20 ALT2.ASPMX.L.GOOGLE.COM.3600
MX20 ALT1.ASPMX.L.GOOGLE.COM.3600
MX30 ALT4.ASPMX.L.GOOGLE.COM.3600
MX30 ALT3.ASPMX.L.GOOGLE.COM.3600
TXT"google-site-verification=1rYGGLtYCgdDDmIjY3TS9Auq-OM3AtD84XM0fIXkc5Y"3600
TXT"v=DKIM1\\; k=rsa\\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbKT7oD6FvaZQAERzvMqC4Jy2i1Kq6AmRyLFnTS73OMNfGQElDJcnntU3qjuRCqBIO/ndW4CA+sgOoIMER7oelcjXqLPlapUFS9hrL/BhvmAlXAvODa3bRbMUQ8LxqDdxZ1uoaLi1zZoidzGYdEyVApSKcE7ARdgUW/BjwuGIrUQIDAQAB"3600
TXT"firebase=autobewertung-65dce"3600
TXT"_globalsign-domain-verification=uJqsSX1GhpaZSFMhWB8VnlSbH-6c3GbKG4zsuqlwcx"3600
TXT"v=spf1 include:email.iovox.com include:_spf.google.com include:sendgrid.net include:mx00a.euroweb.net include:emsd1.com +ip4:217.6.222.112/28 +ip4:193.142.0.0/24 +ip4:91.198.228.0/24 +ip4:91.199.247.0/24 -all"3600
TXT"google-site-verification=uBvjvtnXlEvI3xIQQBddZlDqo1I740uQ70337N65blw"3600
TXT"google-site-verification=PJ0iKRa8Au-eWxUus_vJROFW2TPicl1PLcQpAdj1fWk"3600
TXT"google-site-verification=xjnKnvPpkjDbGeiEUq_l1NwQqz4NGgkucNy2I490qeM"3600
TXT"google-site-verification=VO4J1s2TYUo31TOsfcJTH3p58HlWY0PvQ3pkY3tqF2E"3600
TXT"loaderio=5dd5c61c08b2d5d92dc0a5c7acbdd4af"3600
TXT"google-site-verification=eTHQtWl_4h93zfN3OFVWUXww2dV8W4J_1AFh9hEw1W4"3600
TXT"ahrefs-site-verification_5670373eb4a55e5c8e42369eb17a0c91a08cf7295dead54328bf6d8f5c42b4ce"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, 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