marketingweek.com

Checked 22 October 2026, 09:43 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 2027-09-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
2 September 1999
Last changed
30 November 2025
Expires
2 September 2027
Status
client transfer prohibited
Registry nameservers
mark.ns.cloudflare.com, roxy.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 2027-09-02 #3
    The registration is valid until 2027-09-02 (315 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

mark.ns.cloudflare.com, roxy.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
mark.ns.cloudflare.com, roxy.ns.cloudflare.com
NS in the zone
mark.ns.cloudflare.com, roxy.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
mark.ns.cloudflare.com108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182AS13335 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., US108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182
roxy.ns.cloudflare.com172.64.32.142 173.245.58.142 108.162.192.142 2606:4700:50::adf5:3a8e 2803:f800:50::6ca2:c08e 2a06:98c1:50::ac40:208eAS13335 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., US108.162.192.142 172.64.32.142 173.245.58.142 2606:4700:50::adf5:3a8e 2803:f800:50::6ca2:c08e 2a06:98c1:50::ac40:208e

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: mark.ns.cloudflare.com, roxy.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
mark.ns.cloudflare.com 108.162.193.130NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
mark.ns.cloudflare.com 172.64.33.130NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
mark.ns.cloudflare.com 173.245.59.130NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
mark.ns.cloudflare.com 2606:4700:58::adf5:3b82NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
mark.ns.cloudflare.com 2803:f800:50::6ca2:c182NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
mark.ns.cloudflare.com 2a06:98c1:50::ac40:2182NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 172.64.32.142NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 173.245.58.142NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 108.162.192.142NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 2606:4700:50::adf5:3a8eNOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 2803:f800:50::6ca2:c08eNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
roxy.ns.cloudflare.com 2a06:98c1:50::ac40:208eNOERROR, 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: mark.ns.cloudflare.com: "2026.10.2"; roxy.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 2416958201 · primary mark.ns.cloudflare.com

Found

Primary (MNAME)
mark.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416958201
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
mark.ns.cloudflare.com (108.162.193.130)2416958201
mark.ns.cloudflare.com (172.64.33.130)2416958201
mark.ns.cloudflare.com (173.245.59.130)2416958201
mark.ns.cloudflare.com (2606:4700:58::adf5:3b82)2416958201
mark.ns.cloudflare.com (2803:f800:50::6ca2:c182)2416958201
mark.ns.cloudflare.com (2a06:98c1:50::ac40:2182)2416958201
roxy.ns.cloudflare.com (172.64.32.142)2416958201
roxy.ns.cloudflare.com (173.245.58.142)2416958201
roxy.ns.cloudflare.com (108.162.192.142)2416958201
roxy.ns.cloudflare.com (2606:4700:50::adf5:3a8e)2416958201
roxy.ns.cloudflare.com (2803:f800:50::6ca2:c08e)2416958201
roxy.ns.cloudflare.com (2a06:98c1:50::ac40:208e)2416958201

Checks

  • ✓ Serial 2416958201 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 mark.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 2416958201 is a Unix timestamp (2046-08-04 01:16 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

44 records at the apex

Found

Read from
108.162.193.130:53
TypeValueTTL
SOAmark.ns.cloudflare.com. dns.cloudflare.com. 2416958201 10000 2400 604800 18001800
NSmark.ns.cloudflare.com.86400
NSroxy.ns.cloudflare.com.86400
A104.26.2.243300
A172.67.71.191300
A104.26.3.243300
AAAA2606:4700:20::ac43:47bf300
AAAA2606:4700:20::681a:3f3300
AAAA2606:4700:20::681a:2f3300
MX1 aspmx.l.google.com.3600
MX10 alt3.aspmx.l.google.com.3600
MX10 alt4.aspmx.l.google.com.3600
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
TXT"MS=ms54703401"300
TXT"ZOOM_verify_twRjHGMojcWIYwFCdsvTwD"300
TXT"_globalsign-domain-verification=eRi2ZQZJ99fAou8jrSC06eUJpasrvj8YgWl21vaW5G"300
TXT"docusign=2563804f-7749-496f-a188-d1ba6ebee34d"300
TXT"extensis-domain-verification=d11b0136-32a7-4dfc-969d-10edb41caf76"300
TXT"google-site-verification=CHJjDtE6Y0nRyWSFgTKuTYpa27HVPzUKXdCvXNZcFqw"300
TXT"google-site-verification=WKTCGJ10hyPn1Lxx42OWMQi6TSTUPWxSWmIffhUxJfk"300
TXT"google-site-verification=guI-7qUcD7SM57E7rCjVPdkIEnhEjOAGHnilRQo07Ys"300
TXT"include:ip4:95.131.218.34 -all"300
TXT"k5qonu5giude5sepustcvth8lh"300
TXT"knowbe4-site-verification=425dd01e5f23859f7d21f3ea9e7c0ab9"300
TXT"pardot473942=374007f77d8438ab592c04811a44cac5ea9f984d58753d51a9a041672399578a"300
TXT"pardot473942=afac5659dcf1d4ac67f90938386860767afaa6e27f751bd31207c4da531f4554"300
TXT"pardot473942=cbb58b4926fa1e34a7846833d93a722ebcbaa3006da534dd20dc17a4bf09102c"300
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.google.com ~all"300
CAA0 iodef "mailto:team@digitalteam.co"300
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 "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 1h, 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.