smartertools.com

Checked 22 October 2026, 10:44 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · NameCheap, Inc. · expires 2026-12-01

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
NameCheap, Inc.
Registered
1 December 2002
Last changed
30 January 2024
Expires
1 December 2026
Status
client transfer prohibited
Registry nameservers
annabel.ns.cloudflare.com, marek.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 2026-12-01 #3
    The registration is valid until 2026-12-01 (40 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

annabel.ns.cloudflare.com, marek.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
annabel.ns.cloudflare.com, marek.ns.cloudflare.com
NS in the zone
annabel.ns.cloudflare.com, marek.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
annabel.ns.cloudflare.com162.159.38.207 172.64.34.207 108.162.194.207 2a06:98c1:50::ac40:22cf 2803:f800:50::6ca2:c2cf 2606:4700:50::a29f:26cfAS13335 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., US108.162.194.207 162.159.38.207 172.64.34.207 2606:4700:50::a29f:26cf 2803:f800:50::6ca2:c2cf 2a06:98c1:50::ac40:22cf
marek.ns.cloudflare.com172.64.33.202 173.245.59.202 108.162.193.202 2a06:98c1:50::ac40:21ca 2606:4700:58::adf5:3bca 2803:f800:50::6ca2:c1caAS13335 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., US108.162.193.202 172.64.33.202 173.245.59.202 2606:4700:58::adf5:3bca 2803:f800:50::6ca2:c1ca 2a06:98c1:50::ac40:21ca

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: annabel.ns.cloudflare.com, marek.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
annabel.ns.cloudflare.com 162.159.38.207NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
annabel.ns.cloudflare.com 172.64.34.207NOERROR, 10 ms, authoritativenoyes / yesrefused2026.10.2
annabel.ns.cloudflare.com 108.162.194.207NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
annabel.ns.cloudflare.com 2a06:98c1:50::ac40:22cfNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
annabel.ns.cloudflare.com 2803:f800:50::6ca2:c2cfNOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
annabel.ns.cloudflare.com 2606:4700:50::a29f:26cfNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 172.64.33.202NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 173.245.59.202NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 108.162.193.202NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 2a06:98c1:50::ac40:21caNOERROR, 10 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 2606:4700:58::adf5:3bcaNOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
marek.ns.cloudflare.com 2803:f800:50::6ca2:c1caNOERROR, 10 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: annabel.ns.cloudflare.com: "2026.10.2"; marek.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 2417992529 · primary annabel.ns.cloudflare.com

Found

Primary (MNAME)
annabel.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417992529
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
annabel.ns.cloudflare.com (162.159.38.207)2417992529
annabel.ns.cloudflare.com (172.64.34.207)2417992529
annabel.ns.cloudflare.com (108.162.194.207)2417992529
annabel.ns.cloudflare.com (2a06:98c1:50::ac40:22cf)2417992529
annabel.ns.cloudflare.com (2803:f800:50::6ca2:c2cf)2417992529
annabel.ns.cloudflare.com (2606:4700:50::a29f:26cf)2417992529
marek.ns.cloudflare.com (172.64.33.202)2417992529
marek.ns.cloudflare.com (173.245.59.202)2417992529
marek.ns.cloudflare.com (108.162.193.202)2417992529
marek.ns.cloudflare.com (2a06:98c1:50::ac40:21ca)2417992529
marek.ns.cloudflare.com (2606:4700:58::adf5:3bca)2417992529
marek.ns.cloudflare.com (2803:f800:50::6ca2:c1ca)2417992529

Checks

  • ✓ Serial 2417992529 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 annabel.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 2417992529 is a Unix timestamp (2046-08-16 00:35 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

warn

18 records at the apex

Found

Read from
162.159.38.207:53
TypeValueTTL
SOAannabel.ns.cloudflare.com. dns.cloudflare.com. 2417992529 10000 2400 604800 18001800
NSannabel.ns.cloudflare.com.86400
NSmarek.ns.cloudflare.com.86400
A34.83.66.24360
MX10 mail.smartertools.com.60
TXT"MS=ms16102811"60
TXT"anthropic-domain-verification-80rgyj=E4eISAI2Qd5fzgaycmfEkrZPP"60
TXT"apple-domain-verification=4LFLcmynEC8ogUvgwl-CwMkZv56NwoowymzBnA8KKA8"60
TXT"apple-domain-verification=8DQZ7B8dRSHvtqAN"60
TXT"atlassian-domain-verification=5adYLWnuFMGqALr5Lkd/lHJBBHCWYwa12BgHD2y1nuZnTtOHPBABj3rqVUzRQsfU"60
TXT"google-site-verification=H8bY6L6gX0cteEpbnYhTIt0m5XE8cuyKqhHI86THDyU"60
TXT"google-site-verification=JgKXyA-P6X9ArUiKqhHDZ4W1E22iIOxk_uqCB1JQbxU"60
TXT"google-site-verification=Sf7rQVzQSoYaMjXvXuQdBCKo3CVeNF6tCULj6DkceOw"60
TXT"google-site-verification=UN3swX-ozzPeN9eMQviANCA-97wCbVv102Upv0qZ0Wk"60
TXT"google-site-verification=ulEQ6u2mZms7zsriC-3wnBV3erMBTQdJ_Lr27MPAW_Y"60
TXT"jetbrains-domain-verification=b30zsc6max4roa1w9y1k120f"60
TXT"v=spf1 mx ip4:34.169.160.163 ip4:35.247.73.164 ip4:34.19.22.181 ip4:35.247.116.72 ip4:68.15.151.106 ip4:34.83.66.243 include:smtp.smartertools.com -all"60
TXT"zoom-domain-verification=ZOOM_verify_5faef0e4e85b48008458e879acdfc4dd"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
    #32
  • ✓ 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