zeffy.com

Checked 22 October 2026, 11:42 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 6 info

Registration

info

.com generic · Squarespace Domains II LLC · expires 2027-03-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Squarespace Domains II LLC
Registered
16 March 2005
Last changed
1 March 2026
Expires
16 March 2027
Status
client delete prohibited, client transfer prohibited
Registry nameservers
melody.ns.cloudflare.com, vasilii.ns.cloudflare.com
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-03-16 #3
    The registration is valid until 2027-03-16 (145 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

melody.ns.cloudflare.com, vasilii.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
melody.ns.cloudflare.com, vasilii.ns.cloudflare.com
NS in the zone
melody.ns.cloudflare.com, vasilii.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
melody.ns.cloudflare.com172.64.34.250 162.159.38.250 108.162.194.250 2803:f800:50::6ca2:c2fa 2a06:98c1:50::ac40:22fa 2606:4700:50::a29f:26faAS13335 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., US108.162.194.250 162.159.38.250 172.64.34.250 2606:4700:50::a29f:26fa 2803:f800:50::6ca2:c2fa 2a06:98c1:50::ac40:22fa
vasilii.ns.cloudflare.com162.159.44.26 108.162.195.26 172.64.35.26 2a06:98c1:50::ac40:231a 2606:4700:58::a29f:2c1a 2803:f800:50::6ca2:c31aAS13335 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., US108.162.195.26 162.159.44.26 172.64.35.26 2606:4700:58::a29f:2c1a 2803:f800:50::6ca2:c31a 2a06:98c1:50::ac40:231a

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: melody.ns.cloudflare.com, vasilii.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
melody.ns.cloudflare.com 172.64.34.250NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
melody.ns.cloudflare.com 162.159.38.250NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
melody.ns.cloudflare.com 108.162.194.250NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
melody.ns.cloudflare.com 2803:f800:50::6ca2:c2faNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
melody.ns.cloudflare.com 2a06:98c1:50::ac40:22faNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
melody.ns.cloudflare.com 2606:4700:50::a29f:26faNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 162.159.44.26NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 108.162.195.26NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 172.64.35.26NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 2a06:98c1:50::ac40:231aNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 2606:4700:58::a29f:2c1aNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
vasilii.ns.cloudflare.com 2803:f800:50::6ca2:c31aNOERROR, 16 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: melody.ns.cloudflare.com: "2026.10.2"; vasilii.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 2418153631 · primary melody.ns.cloudflare.com

Found

Primary (MNAME)
melody.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418153631
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
melody.ns.cloudflare.com (172.64.34.250)2418153631
melody.ns.cloudflare.com (162.159.38.250)2418153631
melody.ns.cloudflare.com (108.162.194.250)2418153631
melody.ns.cloudflare.com (2803:f800:50::6ca2:c2fa)2418153631
melody.ns.cloudflare.com (2a06:98c1:50::ac40:22fa)2418153631
melody.ns.cloudflare.com (2606:4700:50::a29f:26fa)2418153631
vasilii.ns.cloudflare.com (162.159.44.26)2418153631
vasilii.ns.cloudflare.com (108.162.195.26)2418153631
vasilii.ns.cloudflare.com (172.64.35.26)2418153631
vasilii.ns.cloudflare.com (2a06:98c1:50::ac40:231a)2418153631
vasilii.ns.cloudflare.com (2606:4700:58::a29f:2c1a)2418153631
vasilii.ns.cloudflare.com (2803:f800:50::6ca2:c31a)2418153631

Checks

  • ✓ Serial 2418153631 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 melody.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 2418153631 is a Unix timestamp (2046-08-17 21:20 UTC).

DNSSEC

info

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 6CD19BC8577BB55E…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 2026-10-21 10:42 UTC and expires at 2026-10-23 12:42 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

info

23 records at the apex

Found

Read from
172.64.34.250:53
TypeValueTTL
SOAmelody.ns.cloudflare.com. dns.cloudflare.com. 2418153631 10000 2400 604800 18001800
NSmelody.ns.cloudflare.com.86400
NSvasilii.ns.cloudflare.com.86400
A104.18.21.101300
A104.18.20.101300
AAAA2606:4700::6812:1565300
AAAA2606:4700::6812:1465300
MX1 aspmx.l.google.com.300
MX10 alt3.aspmx.l.google.com.300
MX10 alt4.aspmx.l.google.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"anthropic-domain-verification-ha5zzx=gV2Rr3PEj1L0LoBz3Kt0XhPRT"300
TXT"brevo-code:131de14dca15092eb61ee191e6206664"300
TXT"google-site-verification=Dnk_mO-rkMNm3tfBpyNxOo41r528GED0BTqJodcwA28"300
TXT"google-site-verification=rvRmftaYMiJYTC1gPBNIud-mAQC-hu1EBUfMaifLVfk"300
TXT"hubspot-developer-verification=OTk0NzFhOTYtYzYwMi00ZGJiLTgyZmEtZmZkOGE1N2JhYTRi"300
TXT"linkedin-site-verification=18ac1623-3c54-40dd-9136-24467c8d9c14"300
TXT"openai-domain-verification=dv-BiBUUrrBDtsDOpwH8aJvG8HS"300
TXT"ps-cd-verification=6080babb-e994-4956-a8d1-aafa99270916"300
TXT"site24x7-signals-domain-verification=350435200c36d1fa74f0529f3a9e4fc8"300
TXT"stytch_verification_dns=field-pressure-2888"300
TXT"v=spf1 include:_spf.google.com include:2614165.spf03.hubspotemail.net include:mg-spf.greenhouse.io ~all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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