pluralsight.com

Checked 22 October 2026, 10:20 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-04-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
23 April 2004
Last changed
22 March 2026
Expires
23 April 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
diana.ns.cloudflare.com, ganz.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 2027-04-23 #3
    The registration is valid until 2027-04-23 (183 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

diana.ns.cloudflare.com, ganz.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
diana.ns.cloudflare.com, ganz.ns.cloudflare.com
NS in the zone
diana.ns.cloudflare.com, ganz.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
diana.ns.cloudflare.com108.162.194.23 172.64.34.23 162.159.38.23 2606:4700:50::a29f:2617 2a06:98c1:50::ac40:2217 2803:f800:50::6ca2:c217AS13335 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., US108.162.194.23 162.159.38.23 172.64.34.23 2606:4700:50::a29f:2617 2803:f800:50::6ca2:c217 2a06:98c1:50::ac40:2217
ganz.ns.cloudflare.com108.162.195.40 172.64.35.40 162.159.44.40 2606:4700:58::a29f:2c28 2803:f800:50::6ca2:c328 2a06:98c1:50::ac40:2328AS13335 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., US108.162.195.40 162.159.44.40 172.64.35.40 2606:4700:58::a29f:2c28 2803:f800:50::6ca2:c328 2a06:98c1:50::ac40:2328

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: diana.ns.cloudflare.com, ganz.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
diana.ns.cloudflare.com 108.162.194.23NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
diana.ns.cloudflare.com 172.64.34.23NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
diana.ns.cloudflare.com 162.159.38.23NOERROR, 33 ms, authoritativenoyes / yesrefused2026.10.2
diana.ns.cloudflare.com 2606:4700:50::a29f:2617NOERROR, 9 ms, authoritativenoyes / yesrefused2026.10.2
diana.ns.cloudflare.com 2a06:98c1:50::ac40:2217NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
diana.ns.cloudflare.com 2803:f800:50::6ca2:c217NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 108.162.195.40NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 172.64.35.40NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 162.159.44.40NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 2606:4700:58::a29f:2c28NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 2803:f800:50::6ca2:c328NOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
ganz.ns.cloudflare.com 2a06:98c1:50::ac40:2328NOERROR, 4 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: diana.ns.cloudflare.com: "2026.10.2"; ganz.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 2418141809 · primary diana.ns.cloudflare.com

Found

Primary (MNAME)
diana.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418141809
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
diana.ns.cloudflare.com (108.162.194.23)2418141809
diana.ns.cloudflare.com (172.64.34.23)2418141809
diana.ns.cloudflare.com (162.159.38.23)2418141809
diana.ns.cloudflare.com (2606:4700:50::a29f:2617)2418141809
diana.ns.cloudflare.com (2a06:98c1:50::ac40:2217)2418141809
diana.ns.cloudflare.com (2803:f800:50::6ca2:c217)2418141809
ganz.ns.cloudflare.com (108.162.195.40)2418141809
ganz.ns.cloudflare.com (172.64.35.40)2418141809
ganz.ns.cloudflare.com (162.159.44.40)2418141809
ganz.ns.cloudflare.com (2606:4700:58::a29f:2c28)2418141809
ganz.ns.cloudflare.com (2803:f800:50::6ca2:c328)2418141809
ganz.ns.cloudflare.com (2a06:98c1:50::ac40:2328)2418141809

Checks

  • ✓ Serial 2418141809 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 diana.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 2418141809 is a Unix timestamp (2046-08-17 18:03 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

46 records at the apex

Found

Read from
108.162.194.23:53
TypeValueTTL
SOAdiana.ns.cloudflare.com. dns.cloudflare.com. 2418141809 10000 2400 604800 18001800
NSdiana.ns.cloudflare.com.86400
NSganz.ns.cloudflare.com.86400
A104.17.181.111300
A104.17.192.111300
MX1 aspmx.l.google.com.60
MX10 alt3.aspmx.l.google.com.60
MX10 alt4.aspmx.l.google.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
TXT"7bf09a98dd060458d38b97621692cbd0a5a604f7"300
TXT"MS=ms41543869a"300
TXT"_globalsign-domain-verification=w5n8t888FQ1D0YAR9mJa5Rmii3M98aFvvfCoLMSYhJ"300
TXT"adobe-idp-site-verification=4a6c8d9472d8f26af5d7f078c337386e8262aec1ebf63fc67a8009c85f543010"300
TXT"adobe-idp-site-verification=d4825b9e-4135-4a7b-b3fe-cd6bcfe38065"300
TXT"anthropic-domain-verification-4bp7ta=IkOu7AtPIxzk0VYmErDfmKKy8"300
TXT"atlassian-domain-verification=DfazWw66UomDnCBcBvDVImjO4j5951X92J9/aWZECyNmh3bQp/IBt997zyaJJjuw"300
TXT"atlassian-sending-domain-verification=db9afbb1-3d50-4cc6-b55c-694b3e6a9dc3"300
TXT"bitrise-verification=25cd347627127f45-Oz4mWV7XyUMH"300
TXT"browserstack-domain-verification=f2cafb05-8936-4b07-8608-23e62638ad07"300
TXT"docker-verification=d7abfa55-9cb1-4a75-8953-f8fdd9869056"300
TXT"docusign=6abd45ca-f119-482a-9a8d-99d2d35fa601"300
TXT"google-site-verification=--mGGM0r6904wYn6a5Kw6OL1bTFY3gtMH5_DiQW47ds"300
TXT"google-site-verification=AKZCkImuhcdoKbEmqLPsNE4XYJm_DDxLhn-YYIPrLEc"300
TXT"google-site-verification=Cdmfe3X0LROPlgW9k7aICS4Y1kG3csUSDmQZTkQ51Wc"300
TXT"google-site-verification=WPvER3f7J9XNyDLo1jE7wLvgljSJmkfnPQiI8MiYCQQ"300
TXT"google-site-verification=Y9qwkBT7vBIYSV4TE9Am9FDIAr9G0ZIjzD3rCERjZbI"300
TXT"google-site-verification=Z8SdmXmKzrDfHb70nYjby1J6Q_57asubpt6xvGSc89Y"300
TXT"google-site-verification=p2y8Q7M4pNomqnnBL6LZi5nGFjds_um32TlieyaUOx8"300
TXT"google-site-verification=z8XYfuPOBHsnCOwV2lWv1S_oSowhucExd46onMnYUAY"300
TXT"h1-domain-verification=YSZYYBFyXHxA34Pj5HGrmQCZyC7U1Scmp9AukmCQtWsJ8UZr"300
TXT"omnissa-connect-verification-e693a10c-6f9b-4c21-98cb-a872f11b5c43"300
TXT"onetrust-domain-verification=bfce7575e0204ef48d6bcb3b96086668"300
TXT"openai-domain-verification=dv-3b33GcAy5MVTdLd79DkrFKrv"300
TXT"pendo-domain-verification=216c5ac4-10cc-4d2a-8065-93058bbea4d3"300
TXT"pendo-domain-verification=t-sxZRYQFnMz3I1anCFZmTDDHJQ"300
TXT"slack-domain-verification=lgcTRhmviq6i6RfTxe1GozL6TozWrYVN8Hig0G7P"300
TXT"smartsheet-site-validation=d91aR2W2WhNAtf5zziYDXKll31ni8giy"300
TXT"stripe-verification=0ed274070fc8cdb9af3cb8b3728c14c814acc95a5b6ff8c12bf7f24a23dffaa0"300
TXT"stripe-verification=94f01b49cb6eb98f2fa5413cd784888d851bfd3cf69b849d8c7bffa0fdbf7479"300
TXT"v=spf1 include:mail.zendesk.com include:_spf.google.com include:_spf.psm.knowbe4.com include:_spf.salesforce.com include:spf2.pluralsight.com include:spfa.cpmails.com -all"300
TXT"virtru-site-verify=gZNpo7dh4pT9f2dY3KLnLEyDBGpix6gFohva6Gbm"300
TXT"witness-ai-domain-verification-tvnxnw=daV1PCWDL7eieLOHgDFUyBhAp"300
TXT"wiz-domain-verification=4681157e079191edfcf8e6d35fb70cb818d0bc8c193150be7f47ee404f009bfd"300
TXT"wrike-verification=ODA3MDYzOmVkY2VjMTFkOWY2MWFhMGYxZmIzMTEwMTMzZDNjNWFlMWFhMjI3MzU0MmQ4MjQ3MGFhNDY5NjczMjdmY2JlNGQ="300
TXT"zapier-domain-verification-challenge=1df7b55d-589b-4c54-ae48-c34c9d1da8d8"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: 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