smartbear.com

Checked 22 October 2026, 10:44 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 3 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-07-03

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
3 July 2003
Last changed
30 May 2025
Expires
3 July 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1416.awsdns-49.org, ns-1701.awsdns-20.co.uk, ns-431.awsdns-53.com, ns-917.awsdns-50.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 2027-07-03 #3
    The registration is valid until 2027-07-03 (254 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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-1416.awsdns-49.org, ns-1701.awsdns-20.co.uk, ns-431.awsdns-53.com, ns-917.awsdns-50.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1416.awsdns-49.org, ns-1701.awsdns-20.co.uk, ns-431.awsdns-53.com, ns-917.awsdns-50.net
NS in the zone
ns-1416.awsdns-49.org, ns-1701.awsdns-20.co.uk, ns-431.awsdns-53.com, ns-917.awsdns-50.net
NameserverAddressesNetwork (AS)Glue
ns-1416.awsdns-49.org205.251.197.136 2600:9000:5305:8800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1701.awsdns-20.co.uk205.251.198.165 2600:9000:5306:a500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-431.awsdns-53.com205.251.193.175 2600:9000:5301:af00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.175 2600:9000:5301:af00::1
ns-917.awsdns-50.net205.251.195.149 2600:9000:5303:9500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1416.awsdns-49.org, ns-1701.awsdns-20.co.uk, ns-431.awsdns-53.com, ns-917.awsdns-50.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-1416.awsdns-49.org 205.251.197.136NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1416.awsdns-49.org 2600:9000:5305:8800::1NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns-1701.awsdns-20.co.uk 205.251.198.165NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1701.awsdns-20.co.uk 2600:9000:5306:a500::1NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-431.awsdns-53.com 205.251.193.175NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-431.awsdns-53.com 2600:9000:5301:af00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-917.awsdns-50.net 205.251.195.149NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-917.awsdns-50.net 2600:9000:5303:9500::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-431.awsdns-53.com

Found

Primary (MNAME)
ns-431.awsdns-53.com
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-1416.awsdns-49.org (205.251.197.136)1
ns-1416.awsdns-49.org (2600:9000:5305:8800::1)1
ns-1701.awsdns-20.co.uk (205.251.198.165)1
ns-1701.awsdns-20.co.uk (2600:9000:5306:a500::1)1
ns-431.awsdns-53.com (205.251.193.175)1
ns-431.awsdns-53.com (2600:9000:5301:af00::1)1
ns-917.awsdns-50.net (205.251.195.149)1
ns-917.awsdns-50.net (2600:9000:5303:9500::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-431.awsdns-53.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.
  • ✓ 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

39 records at the apex

Found

Read from
205.251.197.136:53
TypeValueTTL
SOAns-431.awsdns-53.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1416.awsdns-49.org.172800
NSns-1701.awsdns-20.co.uk.172800
NSns-431.awsdns-53.com.172800
NSns-917.awsdns-50.net.172800
A172.66.0.69300
A162.159.140.69300
MX0 us-smtp-inbound-1.mimecast.com.3600
MX10 us-smtp-inbound-2.mimecast.com.3600
TXT"0ed1fe018a6357f5a6c4c94550a5e04930ef3f443e"60
TXT"_hz2ksq2zst3eayilngyktnmzz0slhat"60
TXT"_vt7uxf0tbv2l27npmp2n4i5srgatjhl"60
TXT"adobe-idp-site-verification=6f088e5573b09e1d3a7defc21805449ac3337d7d47b54956bf05e42b0f1d95ff"60
TXT"anthropic-domain-verification-yzgy1r=lUDtyPMsBBey7xGdVGVYTO3Mf"60
TXT"apple-domain-verification=aoe0QLVJcJ5rRu5i"60
TXT"atlassian-domain-verification=LT8w16bpRN1jQLkO+Hi4fVyWjItQAqJA+oZcx02AOuk8kEsBpMs2OgTaCDZYb1Ts"60
TXT"atlassian-domain-verification=zEa61YXPezH4OXF8iTqHZHwtnaKbaYC41UVmHdeM7bOY9NoOaoQ87aqA7NSom/YZ"60
TXT"docker-verification=1e69e8fe-146b-4cae-a5b6-a83bbf41e6bc"60
TXT"docusign=b854e5a8-8f73-4c94-b6ba-63c854714c69"60
TXT"google-site-verification=0BJVbOQh0wRy7iFFYRnL_lA19MrHmNztr3raDRoQIqM"60
TXT"google-site-verification=Xh16ybJXOTCjQ-rZSx9eK71RBjHSKfNSdX4lbYzgTeE"60
TXT"google-site-verification=p3FGt76y0eeBIwjqTU80JQdWTpyDjV_BV_e8OVS0cVw"60
TXT"google-site-verification=t2GKCMrUl_1nedR27h7ps1z1JMEq9vODWI04rSkPPLc"60
TXT"h1-domain-verification=H8GFkpez67kVJunbQxPnnSKycqkHSmmRaHb8kjVQgHkvcYw2"60
TXT"j4hf3f7vck9yzj7wnrmrswgml3xpr2cm"60
TXT"launchdarkly-domain-verification=127b80aa-5b42-4f04-84ee-58ed5b1b63a7"60
TXT"miro-verification=ef9a297c53e81331b0792e13cf9f9e8af978125e"60
TXT"mixpanel-domain-verify=92674939-6f18-4ac2-b292-7720e2a97276"60
TXT"mongodb-site-verification=0PwN13UsdbbAc9S6KCXHFb6Q1SpGcABi"60
TXT"onetrust-domain-verification=479bb3d489bc4fadacfa6e7d97dfd669"60
TXT"openai-domain-verification=dv-slSAu6XPNYbsvXYu5WRYXhvQ"60
TXT"openai-domain-verification=dv-wUtCzg8vwLP8DVvwzjWRMj94"60
TXT"pendo-domain-verification=b9489f2b-efe3-4a40-ad38-80023b8fc803"60
TXT"status-page-domain-verification=4s4nm7j49m98"60
TXT"stripe-verification=712F49ED4762F8102B42040589CA0320046BED108B7432A6EF81C6092BCE3B42"60
TXT"twilio-domain-verification=3f1876d18f4d38a625900f6805a8fc21"60
TXT"uw4qfUAN1REXSCCcdylvwKc"60
TXT"v=MCPv1; k=ed25519; p=ZCGvVLrPujJC6iDi7jQJy4aqaXjpg2ad/VHRSzWcWj8="60
TXT"v=spf1 redirect=8kj2ic86._spf._d.mim.ec"60

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, 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