pcmag.com

Checked 22 October 2026, 10:12 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2030-07-27

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
18 April 1995
Last changed
17 August 2022
Expires
27 July 2030
Status
client transfer prohibited
Registry nameservers
melinda.ns.cloudflare.com, stan.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 2030-07-27 #3
    The registration is valid until 2030-07-27 (1374 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

melinda.ns.cloudflare.com, stan.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
melinda.ns.cloudflare.com, stan.ns.cloudflare.com
NS in the zone
melinda.ns.cloudflare.com, stan.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
melinda.ns.cloudflare.com173.245.58.198 172.64.32.198 108.162.192.198 2803:f800:50::6ca2:c0c6 2606:4700:50::adf5:3ac6 2a06:98c1:50::ac40:20c6AS13335 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., US108.162.192.198 172.64.32.198 173.245.58.198 2606:4700:50::adf5:3ac6 2803:f800:50::6ca2:c0c6 2a06:98c1:50::ac40:20c6
stan.ns.cloudflare.com108.162.193.235 173.245.59.235 172.64.33.235 2a06:98c1:50::ac40:21eb 2606:4700:58::adf5:3beb 2803:f800:50::6ca2:c1ebAS13335 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., US108.162.193.235 172.64.33.235 173.245.59.235 2606:4700:58::adf5:3beb 2803:f800:50::6ca2:c1eb 2a06:98c1:50::ac40:21eb

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: melinda.ns.cloudflare.com, stan.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
melinda.ns.cloudflare.com 173.245.58.198NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
melinda.ns.cloudflare.com 172.64.32.198NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
melinda.ns.cloudflare.com 108.162.192.198NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
melinda.ns.cloudflare.com 2803:f800:50::6ca2:c0c6NOERROR, 10 ms, authoritativenoyes / yesrefused2026.10.2
melinda.ns.cloudflare.com 2606:4700:50::adf5:3ac6NOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
melinda.ns.cloudflare.com 2a06:98c1:50::ac40:20c6NOERROR, 12 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 108.162.193.235NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 173.245.59.235NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 172.64.33.235NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 2a06:98c1:50::ac40:21ebNOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 2606:4700:58::adf5:3bebNOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
stan.ns.cloudflare.com 2803:f800:50::6ca2:c1ebNOERROR, 9 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: melinda.ns.cloudflare.com: "2026.10.2"; stan.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 2417500193 · primary melinda.ns.cloudflare.com

Found

Primary (MNAME)
melinda.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417500193
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
melinda.ns.cloudflare.com (173.245.58.198)2417500193
melinda.ns.cloudflare.com (172.64.32.198)2417500193
melinda.ns.cloudflare.com (108.162.192.198)2417500193
melinda.ns.cloudflare.com (2803:f800:50::6ca2:c0c6)2417500193
melinda.ns.cloudflare.com (2606:4700:50::adf5:3ac6)2417500193
melinda.ns.cloudflare.com (2a06:98c1:50::ac40:20c6)2417500193
stan.ns.cloudflare.com (108.162.193.235)2417500193
stan.ns.cloudflare.com (173.245.59.235)2417500193
stan.ns.cloudflare.com (172.64.33.235)2417500193
stan.ns.cloudflare.com (2a06:98c1:50::ac40:21eb)2417500193
stan.ns.cloudflare.com (2606:4700:58::adf5:3beb)2417500193
stan.ns.cloudflare.com (2803:f800:50::6ca2:c1eb)2417500193

Checks

  • ✓ Serial 2417500193 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 melinda.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 2417500193 is a Unix timestamp (2046-08-10 07:49 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

49 records at the apex

Found

Read from
173.245.58.198:53
TypeValueTTL
SOAmelinda.ns.cloudflare.com. dns.cloudflare.com. 2417500193 10000 2400 604800 18001800
NSmelinda.ns.cloudflare.com.86400
NSstan.ns.cloudflare.com.86400
A104.16.20.118300
A104.16.21.118300
AAAA2606:4700::6810:1576300
AAAA2606:4700::6810:1476300
MX40268 alt4.aspmx.l.google.com.86400
MX40348 aspmx.l.google.com.86400
MX40428 alt3.aspmx.l.google.com.86400
MX40508 alt2.aspmx.l.google.com.86400
MX40588 alt1.aspmx.l.google.com.86400
TXT"adobe-idp-site-verification=cd8dab640ab786a9457c8757f4188cd682dd687a694d1d9c251e9ef54140a0ec"120
TXT"anthropic-domain-verification-0b244f=iw56aFXSdiSMgqeyLVEJ1CeuG"120
TXT"atlassian-domain-verification=QUsZX4LdPWTYZgx09JhShFot27EJnUl/5CyxXFsiGebXl2QD8Fh3zzfkYZJe42Ic"120
TXT"docusign=24c828ce-88ba-4235-928c-fef95e746ecc"120
TXT"e707d41e18214629ac9a84d870dccaee"120
TXT"figma-domain-verification=4f7cdfa45ca39f617dd7ba7b165e1bfd5e9b5e1ec18b849c6098dfdc4a4cfa64-1740511309"120
TXT"globalsign-domain-verification=KaParXxs1OHDy7o8CMbPpHBN-2m_mzwdPqKMMQ66a6"120
TXT"google-site-verification=7QGC_-1foZSB5bRlYVVe454E36rpRfB-4ji6x4tPDEM"120
TXT"google-site-verification=7ibvzoF9zUdMDx8kketGxeqy02eThZhtXKaM4MveeCw"120
TXT"google-site-verification=DR2iszEQgZJYKQO9YBg92DDZqFIx84TDfQaD_fELMGU"120
TXT"google-site-verification=MNhlGeQX-wiKD1qctjMqAOtattiLCFqKMPlDVRzjFl4"120
TXT"google-site-verification=MYwzAkhnPtvBHiX7WAAvcAW2dd8wySNpVlSB2VSlvr8"120
TXT"google-site-verification=oz2m8Twz0_w2ND0aYPM9a_q-dFq5IyFhr9XscXzfQGc"120
TXT"google-site-verification=s-mN7n7gLjHhbcS5kmH5k9QgTCSSUovbjRJpcmcpIyw"120
TXT"knowbe4-site-verification=f8a0eecde40ecb172ead956570d9179c"120
TXT"onetrust-domain-verification=cea86b2c01e84a158a1b440879c93f7b"120
TXT"tollbit-domain-verification=f09dc9af2150fee3a681d5a58c493abeaaf63e026b683a148e2d526d4e395f59"120
TXT"v=spf1 include:_spf.google.com ~all"120
TXT"workplace-domain-verification=ETLV6zXHfnpWNoD1v6mz9z8QGA7A5S"120
CAA0 issue "amazon.com"300
CAA0 issue "amazonaws.com"300
CAA0 issue "amazontrust.com"300
CAA0 issue "awstrust.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 "amazon.com"300
CAA0 issuewild "amazonaws.com"300
CAA0 issuewild "amazontrust.com"300
CAA0 issuewild "awstrust.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, AAAA 5m, MX 1d, 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, amazonaws.com, amazontrust.com, awstrust.com, comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com.