fielmann.de

Checked 21 October 2026, 22:30 UTC · via 8.8.8.8
✗Problems found
19 passed 2 warnings 1 failed 7 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

ns2.xc-ns.de, ns5.xc-ns.de, ns6.xc-ns.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns2.xc-ns.de, ns5.xc-ns.de, ns6.xc-ns.de
NS in the zone
ns2.xc-ns.de, ns5.xc-ns.de, ns6.xc-ns.de
NameserverAddressesNetwork (AS)Glue
ns2.xc-ns.de193.227.117.225 2a04:2b00:14cc::225AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT193.227.117.225 2a04:2b00:14cc::225
ns5.xc-ns.de194.50.187.225 2a04:2b00:14dd::225AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT194.50.187.225 2a04:2b00:14dd::225
ns6.xc-ns.de194.0.182.225 2a04:2b00:14ee::225AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT194.0.182.225 2a04:2b00:14ee::225

Checks

  • ✓ 3 nameservers #6
    Delegated to ns2.xc-ns.de, ns5.xc-ns.de, ns6.xc-ns.de.
  • ✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .de
    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

fail

5 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns2.xc-ns.de 193.227.117.225NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.xc-ns.de 2a04:2b00:14cc::225NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns5.xc-ns.de 194.50.187.225no responsenono / no--
ns5.xc-ns.de 2a04:2b00:14dd::225NOERROR, 2178 ms, authoritativenoyes / yesrefusedreg-wie1
ns6.xc-ns.de 194.0.182.225NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns6.xc-ns.de 2a04:2b00:14ee::225NOERROR, 4 ms, authoritativenoyes / yesrefusedRcodeZero DNS

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns5.xc-ns.de (194.50.187.225): read udp 46.225.38.91:42352->194.50.187.225:53: i/o timeout.
    #14
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns2.xc-ns.de: "RcodeZero DNS"; ns5.xc-ns.de: "reg-wie1"; ns6.xc-ns.de: "RcodeZero DNS".
    #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 2026091001 · primary ns2.xc-ns.de

Found

Primary (MNAME)
ns2.xc-ns.de
Contact (RNAME)
tech.domainexperten.de
Serial
2026091001
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
ns2.xc-ns.de (193.227.117.225)2026091001
ns2.xc-ns.de (2a04:2b00:14cc::225)2026091001
ns5.xc-ns.de (2a04:2b00:14dd::225)2026091001
ns6.xc-ns.de (194.0.182.225)2026091001
ns6.xc-ns.de (2a04:2b00:14ee::225)2026091001

Checks

  • ✓ Serial 2026091001 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 1000h, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.xc-ns.de is one of the listed nameservers.
  • ✓ Contact tech@domainexperten.de #25
    The SOA RNAME tech.domainexperten.de means tech@domainexperten.de.
  • ✓ Date-based serial #26
    The serial 2026091001 follows the YYYYMMDDnn convention (2026-09-10).

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

30 records at the apex

Found

Read from
193.227.117.225:53
TypeValueTTL
SOAns2.xc-ns.de. tech.domainexperten.de. 2026091001 86400 7200 3600000 1728003600
NSns2.xc-ns.de.3600
NSns5.xc-ns.de.3600
NSns6.xc-ns.de.3600
A63.179.230.15300
A63.181.86.137300
MX10 fielmann.mail.protection.outlook.com.3600
MX10 niederlassung-fielmann-de.mail.protection.outlook.com.3600
TXT"MS=ms13442689"60
TXT"6qy1fycl8dt8twxh7mcj1ppg8qsngyw6"60
TXT"_7nxun115b2rcct5co70ozt7ovkz791h"60
TXT"_8d2p32naxp6mbpn53tiwaqzjv8wgc2t"60
TXT"_a97zuxzlrdcv7w4muhbp12tafceskbe"60
TXT"_t1mhpaaex6zohzahp5gcdcsj7nb1jjv"60
TXT"f312w7qsblyrbwcccy6l22ftrphd7t32"60
TXT"klaviyo-site-verification=QvL8Uk"60
TXT"ksb6yxlj0sbc539f4nvjghbzkxjhvgq6"60
TXT"l5x84vb2bfjsk34f54l5dnph1s3v9d3r"60
TXT"pl4xj0hvwpd1kf40m0hm456qql99vkyy"60
TXT"r3c2jw6mxvlq3kdjcvm2vc1vc78rk0js"60
TXT"r973nzc11smsjrw39993s5qrsjmkwszw"60
TXT"sx6g826jtfmwzgh71n2x0zhqlc14qsnc"60
TXT"detectify-verification=9c89242dccbdaced1a75fad7e983ccdc"60
TXT"pinterest-site-verification=af41cb083bce419e173d26c4d2763d84"60
TXT"2021022201415018idt4w3f12kpnmxaz4nfzv4ob6i9ogmgmae83ka1usy52rqcx"60
TXT"2021032918502901r0umykx6xeu7z7nxj5rw9yqk0jt97tu30i4nvvo15wg2q5f8"60
TXT"google-site-verification=ow1-qvVMahLPjq4gRuRoG8z-LD85qABcWb1sxGcPSP0"60
TXT"iBge2nJbfUDC55kv21g3Fu5GYrGVLou/13GCDsuptaQAIP066TK6vN0GunFTSi2Z9KirGOW09JJd1kX8OvuXJg=="60
TXT"adobe-idp-site-verification=5a1be944de660021a35b1bae3d1c3a48be2ac46a932a691388f4fe998bdfb715"60
TXT"v=spf1 include:spf.fielmann.com include:spf.protection.outlook.com include:spf.mailjet.com -all"60

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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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