thawte.com

Checked 22 October 2026, 11:01 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

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

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
10 February 1996
Last changed
10 January 2026
Expires
11 February 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns20.digicertdns.com, ns21.digicertdns.com, ns22.digicertdns.com, ns23.digicertdns.net, ns24.digicertdns.net, ns25.digicertdns.net, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org
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, 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

ns20.digicertdns.com, ns21.digicertdns.com, ns22.digicertdns.com, ns23.digicertdns.net, ns24.digicertdns.net, ns25.digicertdns.net, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns20.digicertdns.com, ns21.digicertdns.com, ns22.digicertdns.com, ns23.digicertdns.net, ns24.digicertdns.net, ns25.digicertdns.net, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org
NS in the zone
ns20.digicertdns.com, ns21.digicertdns.com, ns22.digicertdns.com, ns23.digicertdns.net, ns24.digicertdns.net, ns25.digicertdns.net, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org
NameserverAddressesNetwork (AS)Glue
ns20.digicertdns.com208.94.148.223 2600:1800:10::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.94.148.223 2600:1800:10::1:1f
ns21.digicertdns.com208.80.124.223 2600:1801:11::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.80.124.223 2600:1801:11::1:1f
ns22.digicertdns.com208.80.126.223 2600:1802:12::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US208.80.126.223 2600:1802:12::1:1f
ns23.digicertdns.net208.80.125.223 2600:1801:13::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-
ns24.digicertdns.net208.80.127.223 2600:1802:14::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-
ns25.digicertdns.net208.94.149.223 2600:1800:15::1:1fAS16552 DIGICERT - Tiggee LLC, US AS16552 DIGICERT - Tiggee LLC, US-
pdns196.ultradns.biz156.154.66.196 2610:a1:1015::e8AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdns196.ultradns.com156.154.64.196 2001:502:f3ff::e8AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US156.154.64.196 2001:502:f3ff::e8
pdns196.ultradns.net156.154.65.196 2610:a1:1014::e8AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
pdns196.ultradns.org156.154.67.196 2001:502:4612::e8AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 10 nameservers #6
    Delegated to ns20.digicertdns.com, ns21.digicertdns.com, ns22.digicertdns.com, ns23.digicertdns.net, ns24.digicertdns.net, ns25.digicertdns.net, pdns196.ultradns.biz, pdns196.ultradns.com, pdns196.ultradns.net, pdns196.ultradns.org.
  • ✓ 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 10 IPv4 /24s and 10 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 8 addresses; AS16552 (DIGICERT - Tiggee LLC, US): 12 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

20 of 20 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns20.digicertdns.com 208.94.148.223NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns20.digicertdns.com 2600:1800:10::1:1fNOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns21.digicertdns.com 208.80.124.223NOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns21.digicertdns.com 2600:1801:11::1:1fNOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns22.digicertdns.com 208.80.126.223NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns22.digicertdns.com 2600:1802:12::1:1fNOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns23.digicertdns.net 208.80.125.223NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns23.digicertdns.net 2600:1801:13::1:1fNOERROR, 4 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns24.digicertdns.net 208.80.127.223NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns24.digicertdns.net 2600:1802:14::1:1fNOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns25.digicertdns.net 208.94.149.223NOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
ns25.digicertdns.net 2600:1800:15::1:1fNOERROR, 3 ms, authoritativenoyes / yesrefusedDNS Made Easy Anycast
pdns196.ultradns.biz 156.154.66.196NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.biz 2610:a1:1015::e8NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.com 156.154.64.196NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.com 2001:502:f3ff::e8NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.net 156.154.65.196NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.net 2610:a1:1014::e8NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.org 156.154.67.196NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns196.ultradns.org 2001:502:4612::e8NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 20 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: ns20.digicertdns.com: "DNS Made Easy Anycast"; ns21.digicertdns.com: "DNS Made Easy Anycast"; ns22.digicertdns.com: "DNS Made Easy Anycast"; ns23.digicertdns.net: "DNS Made Easy Anycast"; ns24.digicertdns.net: "DNS Made Easy Anycast"; ns25.digicertdns.net: "DNS Made Easy Anycast"; pdns196.ultradns.biz: "UltraDNS Nameserver"; pdns196.ultradns.com: "UltraDNS Nameserver"; pdns196.ultradns.net: "UltraDNS Nameserver"; pdns196.ultradns.org: "UltraDNS Nameserver".
    #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 2009010172 · primary ns20.digicertdns.com

Found

Primary (MNAME)
ns20.digicertdns.com
Contact (RNAME)
dns.digicertdns.com
Serial
2009010172
Refresh / retry
43200 s / 3600 s
Expire
1209600 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
ns20.digicertdns.com (208.94.148.223)2009010172
ns20.digicertdns.com (2600:1800:10::1:1f)2009010172
ns21.digicertdns.com (208.80.124.223)2009010172
ns21.digicertdns.com (2600:1801:11::1:1f)2009010172
ns22.digicertdns.com (208.80.126.223)2009010172
ns22.digicertdns.com (2600:1802:12::1:1f)2009010172
ns23.digicertdns.net (208.80.125.223)2009010172
ns23.digicertdns.net (2600:1801:13::1:1f)2009010172
ns24.digicertdns.net (208.80.127.223)2009010172
ns24.digicertdns.net (2600:1802:14::1:1f)2009010172
ns25.digicertdns.net (208.94.149.223)2009010172
ns25.digicertdns.net (2600:1800:15::1:1f)2009010172
pdns196.ultradns.biz (156.154.66.196)2009010172
pdns196.ultradns.biz (2610:a1:1015::e8)2009010172
pdns196.ultradns.com (156.154.64.196)2009010172
pdns196.ultradns.com (2001:502:f3ff::e8)2009010172
pdns196.ultradns.net (156.154.65.196)2009010172
pdns196.ultradns.net (2610:a1:1014::e8)2009010172
pdns196.ultradns.org (156.154.67.196)2009010172
pdns196.ultradns.org (2001:502:4612::e8)2009010172

Checks

  • ✓ Serial 2009010172 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 12h, retry 1h, expire 14d, negative TTL 3m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns20.digicertdns.com is one of the listed nameservers.
  • ✓ Contact dns@digicertdns.com #25
    The SOA RNAME dns.digicertdns.com means dns@digicertdns.com.
  • ✓ Date-based serial #26
    The serial 2009010172 follows the YYYYMMDDnn convention (2009-01-01).

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

20 records at the apex

Found

Read from
208.94.148.223:53
TypeValueTTL
SOAns20.digicertdns.com. dns.digicertdns.com. 2009010172 43200 3600 1209600 18086400
NSns21.digicertdns.com.86400
NSns20.digicertdns.com.86400
NSns25.digicertdns.net.86400
NSpdns196.ultradns.org.86400
NSpdns196.ultradns.com.86400
NSpdns196.ultradns.biz.86400
NSns23.digicertdns.net.86400
NSns24.digicertdns.net.86400
NSns22.digicertdns.com.86400
NSpdns196.ultradns.net.86400
A45.60.196.20960
A45.60.206.20960
MX10 thawte-com.mail.protection.outlook.com.300
TXT"v=spf1 include:spf.protection.outlook.com ip4:216.168.254.20/31 a:houston.thawte.com a:mail.digicert.com a:des.digicert.com include:_spf.salesforce.com ip4:216.168.247.10 ip4:52.37.154.10/32 ip4:64.19.218.132 ip4:64.19.218.10 -all"1800
TXT"fastly-domain-delegation-CVX4M7mS--20250313"1800
TXT"MS=ms81472366"1800
TXT"_ge3fjt3qqh47qwpxlsf6kkvsytybohy"1800
TXT"d9wjp35ljwyfxqr4xqsw40syr0248sbj"1800
TXT"_2iu6z2hqh86wfvz5vdacq81ohpdh46x"1800

Checks

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