overstock.com

Checked 22 October 2026, 10:11 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-02-11

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
11 February 1999
Last changed
10 January 2025
Expires
11 February 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
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 2027-02-11 #3
    The registration is valid until 2027-02-11 (111 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
NS in the zone
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
NameserverAddressesNetwork (AS)Glue
dns1.p01.nsone.net198.51.44.1 2620:4d:4000:6259:7:1:0:1AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns2.p01.nsone.net198.51.45.1 2a00:edc0:6259:7:1::2AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns3.p01.nsone.net198.51.44.65 2620:4d:4000:6259:7:1:0:3AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns4.p01.nsone.net198.51.45.65 2a00:edc0:6259:7:1::4AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net.
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS62597 (NSONE - NSONE Inc, US): 8 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 .net
    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

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.p01.nsone.net 198.51.44.1NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns1.p01.nsone.net 2620:4d:4000:6259:7:1:0:1NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p01.nsone.net 198.51.45.1NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p01.nsone.net 2a00:edc0:6259:7:1::2NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p01.nsone.net 198.51.44.65NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p01.nsone.net 2620:4d:4000:6259:7:1:0:3NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p01.nsone.net 198.51.45.65NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p01.nsone.net 2a00:edc0:6259:7:1::4NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9

Checks

  • ✓ All respond #14
    All 8 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: dns1.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns2.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns3.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns4.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9".
    #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 1652465417 · primary dns1.p01.nsone.net

Found

Primary (MNAME)
dns1.p01.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1652465417
Refresh / retry
900 s / 300 s
Expire
604800 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
dns1.p01.nsone.net (198.51.44.1)1652465417
dns1.p01.nsone.net (2620:4d:4000:6259:7:1:0:1)1652465417
dns2.p01.nsone.net (198.51.45.1)1652465417
dns2.p01.nsone.net (2a00:edc0:6259:7:1::2)1652465417
dns3.p01.nsone.net (198.51.44.65)1652465417
dns3.p01.nsone.net (2620:4d:4000:6259:7:1:0:3)1652465417
dns4.p01.nsone.net (198.51.45.65)1652465417
dns4.p01.nsone.net (2a00:edc0:6259:7:1::4)1652465417

Checks

  • ✓ Serial 1652465417 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d. Current values: refresh 15m, retry 5m, expire 7d, negative TTL 15m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.p01.nsone.net is one of the listed nameservers.
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1652465417 is a Unix timestamp (2022-05-13 18:10 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
48553ECDSAP256SHA256 (13)SHA256 36B5D05254EED82D…yes

DNSKEY in the zone

Key tagRoleAlgorithm
48553KSK (257)ECDSAP256SHA256 (13)
12196ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 48553 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 26h0m0s and created on demand; the current one was made at 2026-10-22 09:11 UTC and expires at 2026-10-23 11:11 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

warn

29 records at the apex

Found

Read from
198.51.44.1:53
TypeValueTTL
SOAdns1.p01.nsone.net. hostmaster.nsone.net. 1652465417 900 300 604800 90028800
NSdns4.p01.nsone.net.28800
NSdns3.p01.nsone.net.28800
NSdns2.p01.nsone.net.28800
NSdns1.p01.nsone.net.28800
A23.212.204.22120
AAAA2a02:26f0:480:5af::e9620
AAAA2a02:26f0:480:5ae::e9620
MX0 overstock-com.mail.protection.outlook.com.3600
TXT"+bcd9BHkZzHoTMOHkZirO2Z0FzBmBxCVNUMvJL0oTEtOkQL2kGPDmmozPsq5PCWLs3ichMIz4+Zgn1W/FtA9Rw=="28800
TXT"v=spf1 ip4:65.116.112.0/21 ip4:173.241.144.0/20 ip4:52.8.140.255 ip4:54.164.132.26 ip4:35.169.47.31 ip4:18.217.82.134 include:spf.protection.outlook.com include:_spf.salesforce.com -all"28800
TXT"google-site-verification=PLPmk5cozL_pVgYYV90K1_-sVH_QeS5NOQbJhdgQlH4"28800
TXT"_globalsign-domain-verification=EGXYWFCTQynvOf5IBle5NjMEbKo9PBQaeH9mnr_Faj"28800
TXT"_globalsign-domain-verification=NIyArddHtOpe5kb_pCFH5D_yiT5xVzEqeORSeRee0e"28800
TXT"google-site-verification=UUPHMXa2WH-c7Ys9XL_GPwPAkxNv30jPjL-9RIeUuQc"28800
TXT"google-site-verification=hMfR3Z6ihuxLHC8UHB8dsH7_71t2r4SPrw3o1Qnpeho"28800
TXT"ahrefs-site-verification_cea064a893366cd43a3c4062df9c8f11662ee73530c0c6f325d10aa92f0807c3"28800
TXT"google-site-verification=-R3F1JCZ-YdCBGCgpU8QnTO3UdaWpmgb78lbMuXeqro"28800
TXT"atlassian-domain-verification=RlWBXVhdSBLcKksNQLCSI0icckuVo55zfKultsMlgfj9lWcAIDx9N8v88Oozjav9"28800
TXT"globalsign-domain-verification=51930d36897f77a8aa763ef9b730fc90"28800
TXT"google-site-verification=sAwY-6V5arQLrN2vY7sPrzNHK5A5G9d9sY9Jgy7LrLU"28800
TXT"docker-verification=00f612b4-15a8-46ae-bf21-393a993c1b43"28800
TXT"f9ZtNknHxHL5abJ6sP4n"28800
TXT"794a5440-2f7e-4290-a111-d760825bfeed"28800
TXT"google-site-verification=lwFhdI9C5N47saoU82L1IMs6aKWf2pcWgsVkFhMYJU8"28800
TXT"google-site-verification=k5byGCYNNnSKN5QdbOmnB4QHHCzrw5qGrDvjpfZPjc8"28800
TXT"google-site-verification=VrzafT6KoHLIM-B7JiT4dh2C-fGBTObm_Zo_X3WMYdk"28800
TXT"anthropic-domain-verification-gm6bnf=O4erPtwe1OpmmW53n8fmcWa8Y"28800
TXT"fireflies-verification=01M247S4A77KJMXH8K0XS8C0N1.ffverify.fireflies.ai-request-verification=2026-09-09T23:24:20Z"28800

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 8h; 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