flaconi.de

Checked 21 October 2026, 22:30 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 6 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

algin.ns.cloudflare.com, sandy.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
algin.ns.cloudflare.com, sandy.ns.cloudflare.com
NS in the zone
algin.ns.cloudflare.com, sandy.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
algin.ns.cloudflare.com173.245.59.61 108.162.193.61 172.64.33.61 2606:4700:58::adf5:3b3d 2a06:98c1:50::ac40:213d 2803:f800:50::6ca2:c13dAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
sandy.ns.cloudflare.com108.162.192.219 173.245.58.219 172.64.32.219 2606:4700:50::adf5:3adb 2a06:98c1:50::ac40:20db 2803:f800:50::6ca2:c0dbAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: algin.ns.cloudflare.com, sandy.ns.cloudflare.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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .com
    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
algin.ns.cloudflare.com 173.245.59.61NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
algin.ns.cloudflare.com 108.162.193.61NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
algin.ns.cloudflare.com 172.64.33.61NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
algin.ns.cloudflare.com 2606:4700:58::adf5:3b3dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
algin.ns.cloudflare.com 2a06:98c1:50::ac40:213dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
algin.ns.cloudflare.com 2803:f800:50::6ca2:c13dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 108.162.192.219NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 173.245.58.219NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 172.64.32.219NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 2606:4700:50::adf5:3adbNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 2a06:98c1:50::ac40:20dbNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandy.ns.cloudflare.com 2803:f800:50::6ca2:c0dbNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2

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: algin.ns.cloudflare.com: "2026.10.2"; sandy.ns.cloudflare.com: "2026.10.2". 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

pass

serial 2417418541 · primary algin.ns.cloudflare.com

Found

Primary (MNAME)
algin.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417418541
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
algin.ns.cloudflare.com (173.245.59.61)2417418541
algin.ns.cloudflare.com (108.162.193.61)2417418541
algin.ns.cloudflare.com (172.64.33.61)2417418541
algin.ns.cloudflare.com (2606:4700:58::adf5:3b3d)2417418541
algin.ns.cloudflare.com (2a06:98c1:50::ac40:213d)2417418541
algin.ns.cloudflare.com (2803:f800:50::6ca2:c13d)2417418541
sandy.ns.cloudflare.com (108.162.192.219)2417418541
sandy.ns.cloudflare.com (173.245.58.219)2417418541
sandy.ns.cloudflare.com (172.64.32.219)2417418541
sandy.ns.cloudflare.com (2606:4700:50::adf5:3adb)2417418541
sandy.ns.cloudflare.com (2a06:98c1:50::ac40:20db)2417418541
sandy.ns.cloudflare.com (2803:f800:50::6ca2:c0db)2417418541

Checks

  • ✓ Serial 2417418541 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver algin.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417418541 is a Unix timestamp (2046-08-09 09:09 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
22 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 F3782D7F1AB88CFB…yes

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-20 21:30 UTC and expires at 2026-10-22 23:30 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

warn

53 records at the apex

Found

Read from
173.245.59.61:53
TypeValueTTL
SOAalgin.ns.cloudflare.com. dns.cloudflare.com. 2417418541 10000 2400 604800 18001800
NSalgin.ns.cloudflare.com.86400
NSsandy.ns.cloudflare.com.86400
A3.77.25.6860
A63.185.141.23260
A18.185.161.10260
MX11 aspmx.l.google.com.120
MX12 alt1.aspmx.l.google.com.120
MX13 alt2.aspmx.l.google.com.120
MX14 alt3.aspmx.l.google.com.120
MX15 alt4.aspmx.l.google.com.120
TXT"25reports=048a265813ee0e7b5a4e94bb"120
TXT"_z5ukmekxnff93h4sb2aq65t41x0su1w"120
TXT"abv9fbcerromolf086uv1ujihd"120
TXT"adobe-idp-site-verification=22d31ff3fb37ba1aee40f220afb3f963dd34904170437410bff4e234407c46f8"120
TXT"anthropic-domain-verification-ty8xn9=MSrRziiW9qtba63FM8j8fhfaj"120
TXT"apple-domain-verification=4eRVKyAliykFGTDp"120
TXT"atlassian-domain-verification=rEvX1wM/+lhstkxL6JOBiZnzlv6UVbhba614tXLLBUdr+JdVD/8/1GhMmzpIXhUN"120
TXT"cSpa1Qvn4zRb7ZCw0a+J3SZEyzv4PFt1jx4wNT6G+Kw="120
TXT"canva-site-verification=Ai4VC_2LHnOfIv6AL3hTAg"120
TXT"cursor-domain-verification-n9sd3s=IAkslAaKjPKTZfZA9vHUgS3lp"120
TXT"detectify-verification=5bf3f88dc3b8485dd51d3cf271a3c4b8"120
TXT"facebook-domain-verification=n2yd49g20oajvm0hsmc3egrbyyoch0"120
TXT"google-site-verification=7tywhmNaQqQqq0Oc752BJ_0YCA5_HHMn3BOwY55CZfQ"120
TXT"google-site-verification=H8NUHn176aS3h2GM8_5Nf2Ek6wNGMz_Oc_0z4YjQY-Q"120
TXT"google-site-verification=O4fxmIvCb2RDKHHOahezqlsW0nLpC-8UVMfoz2zV6C8"120
TXT"google-site-verification=Yb6LYlNMDNCeVH9WVLJZ1vawSBOwP98Dg-WHtNuDFJM"120
TXT"google-site-verification=ev73p3esa5-3aIf3otWhsk6Mz-HBiFrCBWPrRaxvmRc"120
TXT"i7k1fgbcq2gin5devq8pjonra3"120
TXT"kiro-site-verification=7af2006f-31e4-4f6b-ac98-04678ad822de"120
TXT"lVYt87u7=9b42664f54b4bf7f6d89b4452e1f951c"120
TXT"miro-verification=391c63ab904f7f0e456e563cb9ce014dd537b9b6"120
TXT"openai-domain-verification=dv-PEsthZptCfmOhmdWZcS3ApXP"120
TXT"teamviewer-sso-verification=525bcdec81c14d718eb1fccde85e4a1f"120
TXT"v=spf1 include:amazonses.com include:spf.mandrillapp.com include:mail.zendesk.com include:servers.mcsv.net include:_spf.google.com -all"120
CAA0 issue "amazon.com"120
CAA0 issue "comodoca.com"120
CAA0 issue "digicert.com; cansignhttpexchanges=yes"120
CAA0 issue "globalsign.com"120
CAA0 issue "godaddy.com"120
CAA0 issue "letsencrypt.org"120
CAA0 issue "pki.goog; cansignhttpexchanges=yes"120
CAA0 issue "sectigo.com"120
CAA0 issue "ssl.com"120
CAA0 issuewild "amazon.com"120
CAA0 issuewild "comodoca.com"120
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"120
CAA0 issuewild "globalsign.com"120
CAA0 issuewild "godaddy.com"120
CAA0 issuewild "letsencrypt.org"120
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"120
CAA0 issuewild "sectigo.com"120
CAA0 issuewild "ssl.com"120

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (2m). 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, comodoca.com, digicert.com, globalsign.com, godaddy.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com.