researchandmarkets.com

Checked 22 October 2026, 10:31 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 3 info

Registration

info

.com generic · Register SPA · expires 2032-04-26

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Register SPA
Registered
26 April 2002
Last changed
6 December 2022
Expires
26 April 2032
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1492.awsdns-58.org, ns-1648.awsdns-14.co.uk, ns-32.awsdns-04.com, ns-679.awsdns-20.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 2032-04-26 #3
    The registration is valid until 2032-04-26 (2013 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

ns-1492.awsdns-58.org, ns-1648.awsdns-14.co.uk, ns-32.awsdns-04.com, ns-679.awsdns-20.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1492.awsdns-58.org, ns-1648.awsdns-14.co.uk, ns-32.awsdns-04.com, ns-679.awsdns-20.net
NS in the zone
ns-1492.awsdns-58.org, ns-1648.awsdns-14.co.uk, ns-32.awsdns-04.com, ns-679.awsdns-20.net
NameserverAddressesNetwork (AS)Glue
ns-1492.awsdns-58.org205.251.197.212 2600:9000:5305:d400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1648.awsdns-14.co.uk205.251.198.112 2600:9000:5306:7000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-32.awsdns-04.com205.251.192.32 2600:9000:5300:2000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.32 2600:9000:5300:2000::1
ns-679.awsdns-20.net205.251.194.167 2600:9000:5302:a700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1492.awsdns-58.org, ns-1648.awsdns-14.co.uk, ns-32.awsdns-04.com, ns-679.awsdns-20.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 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-1492.awsdns-58.org 205.251.197.212NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1492.awsdns-58.org 2600:9000:5305:d400::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1648.awsdns-14.co.uk 205.251.198.112NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1648.awsdns-14.co.uk 2600:9000:5306:7000::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-32.awsdns-04.com 205.251.192.32NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-32.awsdns-04.com 2600:9000:5300:2000::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-679.awsdns-20.net 205.251.194.167NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-679.awsdns-20.net 2600:9000:5302:a700::1NOERROR, 4 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 1 · primary ns-679.awsdns-20.net

Found

Primary (MNAME)
ns-679.awsdns-20.net
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1492.awsdns-58.org (205.251.197.212)1
ns-1492.awsdns-58.org (2600:9000:5305:d400::1)1
ns-1648.awsdns-14.co.uk (205.251.198.112)1
ns-1648.awsdns-14.co.uk (2600:9000:5306:7000::1)1
ns-32.awsdns-04.com (205.251.192.32)1
ns-32.awsdns-04.com (2600:9000:5300:2000::1)1
ns-679.awsdns-20.net (205.251.194.167)1
ns-679.awsdns-20.net (2600:9000:5302:a700::1)1

Checks

  • ✓ Serial 1 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-679.awsdns-20.net is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

21 records at the apex

Found

Read from
205.251.197.212:53
TypeValueTTL
SOAns-679.awsdns-20.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1492.awsdns-58.org.172800
NSns-1648.awsdns-14.co.uk.172800
NSns-32.awsdns-04.com.172800
NSns-679.awsdns-20.net.172800
A20.107.224.573600
MX10 aspmx.l.google.com.600
MX20 alt1.aspmx.l.google.com.600
MX30 aspmx2.googlemail.com.600
MX30 aspmx3.googlemail.com.600
MX30 aspmx4.googlemail.com.600
MX30 aspmx5.googlemail.com.600
TXT"51k5bqf0roq6rl39fotorv0ibk"600
TXT"CfrQP46k"600
TXT"MS=ms58980183"600
TXT"_7ff62916950e89eefcb9312e706260d8.sophosdiskencrypt.researchandmarkets.com cname 9528f21b28b1e6aa384b7fe49904b5c9.53c5ea288cf741db966658f6d807d0e9.dd6f441ba88bffa6b872.comodoca.com"600
TXT"_f23a83549d37eca1148016ba14a8817f.ftp.researchandmarkets.com CNAME 8058520bbe1e134f164bf79bd6da240d.eb50faf619d41d2acc018bd33413cd13.t0538038001537955788.comodoca.com"600
TXT"_globalsign-domain-verification=OYfE_CcZQWFlEEOrR5yVCfCtmiQrm0bBdyUAJyg3qE"600
TXT"google-site-verification=09flAVcbqPgLpliMSkhuXiIquQ2Onuyv36Spxum2o-E"600
TXT"google-site-verification=2MWC7LB3owgKPHO4mna_Ihihr9DCnY0dDU0JHjPYy3c"600
TXT"v=spf1 include:_spf.google.com include:mailgun.org include:spf.mailjet.com ip4:151.106.25.226 ip4:91.210.232.66 ip4:145.239.253.149 ip4:5.250.176.205 ip4:217.160.88.124 -all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 10m, 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