walmart.com

Checked 22 October 2026, 11:23 UTC · via 8.8.8.8
!Passed with warnings
25 passed 4 warnings 0 failed 2 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-09-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
23 February 1995
Last changed
19 September 2026
Expires
23 September 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
a1-185.akam.net, a10-66.akam.net, a22-67.akam.net, a3-64.akam.net, a5-65.akam.net, a8-66.akam.net, pdnswm1.ultradns.net, pdnswm2.ultradns.net, pdnswm3.ultradns.org, pdnswm4.ultradns.org, pdnswm5.ultradns.info, pdnswm6.ultradns.co.uk
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 2027-09-23 #3
    The registration is valid until 2027-09-23 (336 days).
  • ✓ Transfer locked #4
    Registry status: client transfer 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

pass

a1-185.akam.net, a10-66.akam.net, a22-67.akam.net, a3-64.akam.net, a5-65.akam.net, a8-66.akam.net, pdnswm1.ultradns.net, pdnswm2.ultradns.net, pdnswm3.ultradns.org, pdnswm4.ultradns.org, pdnswm5.ultradns.info, pdnswm6.ultradns.co.uk

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-185.akam.net, a10-66.akam.net, a22-67.akam.net, a3-64.akam.net, a5-65.akam.net, a8-66.akam.net, pdnswm1.ultradns.net, pdnswm2.ultradns.net, pdnswm3.ultradns.org, pdnswm4.ultradns.org, pdnswm5.ultradns.info, pdnswm6.ultradns.co.uk
NS in the zone
a1-185.akam.net, a10-66.akam.net, a22-67.akam.net, a3-64.akam.net, a5-65.akam.net, a8-66.akam.net, pdnswm1.ultradns.net, pdnswm2.ultradns.net, pdnswm3.ultradns.org, pdnswm4.ultradns.org, pdnswm5.ultradns.info, pdnswm6.ultradns.co.uk
NameserverAddressesNetwork (AS)Glue
a1-185.akam.net193.108.91.185 2600:1401:2::b9AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-66.akam.net96.7.50.66 2600:1480:d000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-67.akam.net23.211.61.67 2600:1480:7800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-64.akam.net96.7.49.64 2600:1408:1c::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-65.akam.net95.100.168.65 2600:1480:b000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a8-66.akam.net2.16.40.66 2600:1403:a::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
pdnswm1.ultradns.net156.154.64.4 2001:502:f3ff::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdnswm2.ultradns.net156.154.65.4 2610:a1:1014::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdnswm3.ultradns.org156.154.66.4 2610:a1:1015::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdnswm4.ultradns.org156.154.67.4 2001:502:4612::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdnswm5.ultradns.info156.154.68.4 2610:a1:1016::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdnswm6.ultradns.co.uk156.154.69.4 2610:a1:1017::4AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 12 nameservers #6
    Delegated to a1-185.akam.net, a10-66.akam.net, a22-67.akam.net, a3-64.akam.net, a5-65.akam.net, a8-66.akam.net, pdnswm1.ultradns.net, pdnswm2.ultradns.net, pdnswm3.ultradns.org, pdnswm4.ultradns.org, pdnswm5.ultradns.info, pdnswm6.ultradns.co.uk.
  • ✓ 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 12 IPv4 /24s and 12 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 12 addresses; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 12 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .info, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

24 of 24 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-185.akam.net 193.108.91.185NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a1-185.akam.net 2600:1401:2::b9NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a10-66.akam.net 96.7.50.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a10-66.akam.net 2600:1480:d000::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a22-67.akam.net 23.211.61.67NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a22-67.akam.net 2600:1480:7800::43NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a3-64.akam.net 96.7.49.64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a3-64.akam.net 2600:1408:1c::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a5-65.akam.net 95.100.168.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a5-65.akam.net 2600:1480:b000::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.6
a8-66.akam.net 2.16.40.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.26
a8-66.akam.net 2600:1403:a::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
pdnswm1.ultradns.net 156.154.64.4NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm1.ultradns.net 2001:502:f3ff::4NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm2.ultradns.net 156.154.65.4NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm2.ultradns.net 2610:a1:1014::4NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm3.ultradns.org 156.154.66.4NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm3.ultradns.org 2610:a1:1015::4NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm4.ultradns.org 156.154.67.4NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm4.ultradns.org 2001:502:4612::4NOERROR, 37 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm5.ultradns.info 156.154.68.4NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm5.ultradns.info 2610:a1:1016::4NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm6.ultradns.co.uk 156.154.69.4NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdnswm6.ultradns.co.uk 2610:a1:1017::4NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 24 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: a1-185.akam.net: "41824.4"; a1-185.akam.net: "41824.10"; a10-66.akam.net: "48878.31"; a10-66.akam.net: "48878.32"; a22-67.akam.net: "48878.26"; a22-67.akam.net: "48878.27"; a3-64.akam.net: "41824.9"; a5-65.akam.net: "41824.7"; a5-65.akam.net: "41824.6"; a8-66.akam.net: "48878.26"; a8-66.akam.net: "48878.27". 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

warn

serial 2024072210 · primary pdns1.ultradns.net

Found

Primary (MNAME)
pdns1.ultradns.net
Contact (RNAME)
hostmaster.walmart.com
Serial
2024072210
Refresh / retry
3600 s / 3600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-185.akam.net (193.108.91.185)2024072210
a1-185.akam.net (2600:1401:2::b9)2024072210
a10-66.akam.net (96.7.50.66)2024072210
a10-66.akam.net (2600:1480:d000::42)2024072210
a22-67.akam.net (23.211.61.67)2024072210
a22-67.akam.net (2600:1480:7800::43)2024072210
a3-64.akam.net (96.7.49.64)2024072210
a3-64.akam.net (2600:1408:1c::40)2024072210
a5-65.akam.net (95.100.168.65)2024072210
a5-65.akam.net (2600:1480:b000::41)2024072210
a8-66.akam.net (2.16.40.66)2024072210
a8-66.akam.net (2600:1403:a::42)2024072210
pdnswm1.ultradns.net (156.154.64.4)2024072210
pdnswm1.ultradns.net (2001:502:f3ff::4)2024072210
pdnswm2.ultradns.net (156.154.65.4)2024072210
pdnswm2.ultradns.net (2610:a1:1014::4)2024072210
pdnswm3.ultradns.org (156.154.66.4)2024072210
pdnswm3.ultradns.org (2610:a1:1015::4)2024072210
pdnswm4.ultradns.org (156.154.67.4)2024072210
pdnswm4.ultradns.org (2001:502:4612::4)2024072210
pdnswm5.ultradns.info (156.154.68.4)2024072210
pdnswm5.ultradns.info (2610:a1:1016::4)2024072210
pdnswm6.ultradns.co.uk (156.154.69.4)2024072210
pdnswm6.ultradns.co.uk (2610:a1:1017::4)2024072210

Checks

  • ✓ Serial 2024072210 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 7d, negative TTL 5m.
    #23
  • i
    Hidden master
    The primary nameserver pdns1.ultradns.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@walmart.com #25
    The SOA RNAME hostmaster.walmart.com means hostmaster@walmart.com.
  • ✓ Date-based serial #26
    The serial 2024072210 follows the YYYYMMDDnn convention (2024-07-22).

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

39 records at the apex

Found

Read from
193.108.91.185:53
TypeValueTTL
SOApdns1.ultradns.net. hostmaster.walmart.com. 2024072210 3600 3600 604800 3003600
NSa10-66.akam.net.300
NSa3-64.akam.net.300
NSa8-66.akam.net.300
NSpdnswm5.ultradns.info.300
NSpdnswm1.ultradns.net.300
NSpdnswm3.ultradns.org.300
NSpdnswm6.ultradns.co.uk.300
NSa22-67.akam.net.300
NSpdnswm4.ultradns.org.300
NSa1-185.akam.net.300
NSa5-65.akam.net.300
NSpdnswm2.ultradns.net.300
A23.222.80.19220
MX10 mxa-000c7201.gslb.pphosted.com.3600
MX10 mxb-000c7201.gslb.pphosted.com.3600
TXT"google-site-verification=S0nsfgECsTPT8NM05HbjdesyqAZ7XsfAv79u049L2yU"3600
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_netblocks.walmart.com include:_vspf1.walmart.com include:_vspf2.walmart.com include:_vspf3.walmart.com ip4:161.170.248.0/24 ip4:161.170.244.0/24 ip4:161.170.241.16/30 ip4:161.170.245.0/24 ip4:16" "1.170.249.0/24 ~all"3600
TXT"+wnQWce020VDWuXiDkLvV2jJXOlN5tNAzGyHFjMbBg0="3600
TXT"google-site-verification=NldSzIQu5znQHFPVIouYePp4J7tW5-LUF_QPL51TpwU"3600
TXT"google-site-verification=Pa9NQ36UQtHfNJ-AJvqnEZpZi2UllPNe1KNgEoE9xQ4"3600
TXT"infoblox-domain-mastery=cbdbcb7b4ccda409b4d353af156079955dc262a3bd4566aae2a9afba1d3d43e5c2"3600
TXT"canva-site-verification=jcrBOlbl254ia6gsPJNFCg"3600
TXT"google-site-verification=fXyDohGkg2eKfe-89A44nxDbT3QJsPH8OK7BDWomAWw"3600
TXT"_globalsign-domain-verification=9-Ef1Ps_FbIDDK9OPPGU3ju471Ap4_xAPV4pacA3ht"3600
TXT"_globalsign-domain-verification=0UV9-mABi984W6oReb-NIqLZE4wxFn0Z_HZqReFlfx"3600
TXT"anthropic-domain-verification-5vz2bt=GhKF4NMESyKswHJGVanZVBEtB"3600
TXT"twilio-domain-verification=19bf2f50450a9dec2b6ea8d18ab9114f"3600
TXT"_globalsign-domain-verification=py5icP_p500rr-vWvZzbDJ5J0Tw9Xpwryv7ttIZdsD"3600
TXT"_globalsign-domain-verification=E0XnB_4FxsbzvD6MDzvAQoSFChcy4XTb2vlMqtUc5k"3600
TXT"globalsign-domain-verification=2AD27E3A206DB3231BAD817BD5A21F7A"3600
TXT"slack-domain-verification=Ic5IE8asOH1Bg6b1To8CGfWytCkVfywFsAJRZvUm"3600
TXT"globalsign-domain-verification=290297CC7AD18787782E80BFF88B354B"3600
TXT"_globalsign-domain-verification=AXcfQAoG3in-mjLnMOJPhp1CNvUTsRkCaLo60rR5hG"3600
TXT"_globalsign-domain-verification=tYy2ZDIHUuR-3NGTeWDgC5Bs1vAYAyL7kZK8HpVwNg"3600
TXT"openai-domain-verification=dv-IDGFBjh74ycOf2e4vrXwBZtv"3600
CAA0 issue "amazon.com"7200
CAA0 issue "globalsign.com"7200
CAA0 issue "digicert.com"7200

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 5m; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: amazon.com, globalsign.com, digicert.com.