mintlify.com

Checked 22 October 2026, 09:51 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · Squarespace Domains II LLC · expires 2032-10-22

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Squarespace Domains II LLC
Registered
22 October 2021
Last changed
6 October 2025
Expires
22 October 2032
Status
client delete prohibited, client transfer prohibited
Registry nameservers
emma.ns.cloudflare.com, sergi.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 2032-10-22 #3
    The registration is valid until 2032-10-22 (2192 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

emma.ns.cloudflare.com, sergi.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
emma.ns.cloudflare.com, sergi.ns.cloudflare.com
NS in the zone
emma.ns.cloudflare.com, sergi.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
emma.ns.cloudflare.com108.162.192.112 172.64.32.112 173.245.58.112 2606:4700:50::adf5:3a70 2a06:98c1:50::ac40:2070 2803:f800:50::6ca2:c070AS13335 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., US108.162.192.112 172.64.32.112 173.245.58.112 2606:4700:50::adf5:3a70 2803:f800:50::6ca2:c070 2a06:98c1:50::ac40:2070
sergi.ns.cloudflare.com162.159.44.68 172.64.35.68 108.162.195.68 2a06:98c1:50::ac40:2344 2606:4700:58::a29f:2c44 2803:f800:50::6ca2:c344AS13335 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., US108.162.195.68 162.159.44.68 172.64.35.68 2606:4700:58::a29f:2c44 2803:f800:50::6ca2:c344 2a06:98c1:50::ac40:2344

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: emma.ns.cloudflare.com, sergi.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
emma.ns.cloudflare.com 108.162.192.112NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
emma.ns.cloudflare.com 172.64.32.112NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
emma.ns.cloudflare.com 173.245.58.112NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
emma.ns.cloudflare.com 2606:4700:50::adf5:3a70NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
emma.ns.cloudflare.com 2a06:98c1:50::ac40:2070NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
emma.ns.cloudflare.com 2803:f800:50::6ca2:c070NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 162.159.44.68NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 172.64.35.68NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 108.162.195.68NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 2a06:98c1:50::ac40:2344NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 2606:4700:58::a29f:2c44NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sergi.ns.cloudflare.com 2803:f800:50::6ca2:c344NOERROR, 15 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: emma.ns.cloudflare.com: "2026.10.2"; sergi.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 2418048837 · primary emma.ns.cloudflare.com

Found

Primary (MNAME)
emma.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418048837
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
emma.ns.cloudflare.com (108.162.192.112)2418048837
emma.ns.cloudflare.com (172.64.32.112)2418048837
emma.ns.cloudflare.com (173.245.58.112)2418048837
emma.ns.cloudflare.com (2606:4700:50::adf5:3a70)2418048837
emma.ns.cloudflare.com (2a06:98c1:50::ac40:2070)2418048837
emma.ns.cloudflare.com (2803:f800:50::6ca2:c070)2418048837
sergi.ns.cloudflare.com (162.159.44.68)2418048837
sergi.ns.cloudflare.com (172.64.35.68)2418048837
sergi.ns.cloudflare.com (108.162.195.68)2418048837
sergi.ns.cloudflare.com (2a06:98c1:50::ac40:2344)2418048837
sergi.ns.cloudflare.com (2606:4700:58::a29f:2c44)2418048837
sergi.ns.cloudflare.com (2803:f800:50::6ca2:c344)2418048837

Checks

  • ✓ Serial 2418048837 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 emma.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 2418048837 is a Unix timestamp (2046-08-16 16:13 UTC).

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

pass

40 records at the apex

Found

Read from
108.162.192.112:53
TypeValueTTL
SOAemma.ns.cloudflare.com. dns.cloudflare.com. 2418048837 10000 2400 604800 18001800
NSemma.ns.cloudflare.com.86400
NSsergi.ns.cloudflare.com.86400
A76.76.21.21300
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"1password-site-verification=2QMVOBUV6ZCKLOZ2N24I3HYSD4"300
TXT"MS=38B9D8E86B497111802D9E3FB63F969DCAA412D2"300
TXT"[1.07.2026]"300
TXT"anthropic-domain-verification-a4k7dj=yLxX2z6eaPHUVoes9s37nAnLK"300
TXT"cloudflare_dashboard_sso=8d322db14fb62421052fc728bc0282cf"300
TXT"google-site-verification=cah02HuOkKZCW5P07AzVIifU5K_qo5rqRELZ0CaprRs"300
TXT"google-site-verification=xwRxLhnSzHH4BIIs_JeWCsHZEhweYCdLqf4YpbpFQk8"300
TXT"include:46331888.spf01.hubspotemail.net"300
TXT"k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCORDBem7HpH7MuE39bguRqimcJp+e1XkQIL/mhhv6f8SGrySGdzGP/L7Hp2gS5g/o4HbjREPF1ver39D/Uzlh8mi5c748fHMxm4DJwDtxZEb8q4nPw43U89SpgOY7UrAzzl4WR7JXCY6/i6nwyfiCkPJPteFSk1i0TsIotSxtY8QIDAQAB"300
TXT"lemlist-verif=-12c93bdb"300
TXT"linear-domain-verification=7zbevaf7wuw7"300
TXT"linkedin-site-verification=4bd2b9fc-acd2-4d71-829a-99b2fdb75867"300
TXT"mongodb-site-verification=ckvYXYzP5mXxhbKSj3LvwCcumnetpvKQ"300
TXT"notion-domain-verification=HFAGrrqYV8IujbQW4ZjRX3kKFLjrV6P5OeZgqv0dZ97"300
TXT"plain-domain-verification-evw52w=N1fDSKRXZ9mN7FyeIewNyYomE"300
TXT"resend-domain-verification=65200fb1606f371bbc08d2da4aa7aaf0"300
TXT"rippling-domain-verification=32dfc8d3c18443c8"300
TXT"stytch_verification_dns=lime-geese-1405"300
TXT"v=MCPv1; k=ed25519; p=a8UomkOGHvF1fod5268MeXKut5nPD6zcv7N/tpZn/OI="300
TXT"v=spf1 include:_spf.google.com include:46331888.spf01.hubspotemail.net ~all"300
CAA0 issue "amazon.com"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "ssl.com"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "ssl.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.