transparencymarketresearch.com

Checked 22 October 2026, 11:12 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 3 info

Registration

info

.com generic · PDR Ltd. d/b/a PublicDomainRegistry.com · expires 2029-06-29

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
PDR Ltd. d/b/a PublicDomainRegistry.com
Registered
29 June 2011
Last changed
12 June 2023
Expires
29 June 2029
Status
client transfer prohibited
Registry nameservers
ns-1022.awsdns-63.net, ns-1357.awsdns-41.org, ns-1683.awsdns-18.co.uk, ns-39.awsdns-04.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 2029-06-29 #3
    The registration is valid until 2029-06-29 (981 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

ns-1022.awsdns-63.net, ns-1357.awsdns-41.org, ns-1683.awsdns-18.co.uk, ns-39.awsdns-04.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1022.awsdns-63.net, ns-1357.awsdns-41.org, ns-1683.awsdns-18.co.uk, ns-39.awsdns-04.com
NS in the zone
ns-1022.awsdns-63.net, ns-1357.awsdns-41.org, ns-1683.awsdns-18.co.uk, ns-39.awsdns-04.com
NameserverAddressesNetwork (AS)Glue
ns-1022.awsdns-63.net205.251.195.254 2600:9000:5303:fe00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1357.awsdns-41.org205.251.197.77 2600:9000:5305:4d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1683.awsdns-18.co.uk205.251.198.147 2600:9000:5306:9300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-39.awsdns-04.com205.251.192.39 2600:9000:5300:2700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.39 2600:9000:5300:2700::1

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1022.awsdns-63.net, ns-1357.awsdns-41.org, ns-1683.awsdns-18.co.uk, ns-39.awsdns-04.com.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, 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
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1022.awsdns-63.net 205.251.195.254NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1022.awsdns-63.net 2600:9000:5303:fe00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1357.awsdns-41.org 205.251.197.77NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1357.awsdns-41.org 2600:9000:5305:4d00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1683.awsdns-18.co.uk 205.251.198.147NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1683.awsdns-18.co.uk 2600:9000:5306:9300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-39.awsdns-04.com 205.251.192.39NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-39.awsdns-04.com 2600:9000:5300:2700::1NOERROR, 11 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2021083101 · primary ns-39.awsdns-04.com

Found

Primary (MNAME)
ns-39.awsdns-04.com
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
2021083101
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1022.awsdns-63.net (205.251.195.254)2021083101
ns-1022.awsdns-63.net (2600:9000:5303:fe00::1)2021083101
ns-1357.awsdns-41.org (205.251.197.77)2021083101
ns-1357.awsdns-41.org (2600:9000:5305:4d00::1)2021083101
ns-1683.awsdns-18.co.uk (205.251.198.147)2021083101
ns-1683.awsdns-18.co.uk (2600:9000:5306:9300::1)2021083101
ns-39.awsdns-04.com (205.251.192.39)2021083101
ns-39.awsdns-04.com (2600:9000:5300:2700::1)2021083101

Checks

  • ✓ Serial 2021083101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-39.awsdns-04.com is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Date-based serial #26
    The serial 2021083101 follows the YYYYMMDDnn convention (2021-08-31).

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

info

10 records at the apex

Found

Read from
205.251.195.254:53
TypeValueTTL
SOAns-39.awsdns-04.com. awsdns-hostmaster.amazon.com. 2021083101 7200 900 1209600 86400900
NSns-1022.awsdns-63.net.172800
NSns-1357.awsdns-41.org.172800
NSns-1683.awsdns-18.co.uk.172800
NSns-39.awsdns-04.com.172800
A3.219.85.87300
MX0 transparencymarketresearch-com.mail.protection.outlook.com.300
TXT"202510140219233zc9q5waa222gypr6n6l9xvvyth3vvs0jp5cu7xkxescpaqip1"300
TXT"MS=ms17571134"300
TXT"v=spf1 a:www.transparencymarketresearch.com a:email.transparencymarketresearch.com include:spf.protection.outlook.com -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 2d.
  • ✓ 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