venngage.com

Checked 22 October 2026, 11:21 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · NameCheap, Inc. · expires 2027-03-01

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
NameCheap, Inc.
Registered
1 March 2012
Last changed
30 January 2026
Expires
1 March 2027
Status
client transfer prohibited
Registry nameservers
ns-1530.awsdns-63.org, ns-1851.awsdns-39.co.uk, ns-317.awsdns-39.com, ns-589.awsdns-09.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 2027-03-01 #3
    The registration is valid until 2027-03-01 (130 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-1530.awsdns-63.org, ns-1851.awsdns-39.co.uk, ns-317.awsdns-39.com, ns-589.awsdns-09.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1530.awsdns-63.org, ns-1851.awsdns-39.co.uk, ns-317.awsdns-39.com, ns-589.awsdns-09.net
NS in the zone
ns-1530.awsdns-63.org, ns-1851.awsdns-39.co.uk, ns-317.awsdns-39.com, ns-589.awsdns-09.net
NameserverAddressesNetwork (AS)Glue
ns-1530.awsdns-63.org205.251.197.250 2600:9000:5305:fa00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1851.awsdns-39.co.uk205.251.199.59 2600:9000:5307:3b00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-317.awsdns-39.com205.251.193.61 2600:9000:5301:3d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.61 2600:9000:5301:3d00::1
ns-589.awsdns-09.net205.251.194.77 2600:9000:5302:4d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1530.awsdns-63.org, ns-1851.awsdns-39.co.uk, ns-317.awsdns-39.com, ns-589.awsdns-09.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-1530.awsdns-63.org 205.251.197.250NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1530.awsdns-63.org 2600:9000:5305:fa00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1851.awsdns-39.co.uk 205.251.199.59NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1851.awsdns-39.co.uk 2600:9000:5307:3b00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-317.awsdns-39.com 205.251.193.61NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-317.awsdns-39.com 2600:9000:5301:3d00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-589.awsdns-09.net 205.251.194.77NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-589.awsdns-09.net 2600:9000:5302:4d00::1NOERROR, 5 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-1851.awsdns-39.co.uk

Found

Primary (MNAME)
ns-1851.awsdns-39.co.uk
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-1530.awsdns-63.org (205.251.197.250)1
ns-1530.awsdns-63.org (2600:9000:5305:fa00::1)1
ns-1851.awsdns-39.co.uk (205.251.199.59)1
ns-1851.awsdns-39.co.uk (2600:9000:5307:3b00::1)1
ns-317.awsdns-39.com (205.251.193.61)1
ns-317.awsdns-39.com (2600:9000:5301:3d00::1)1
ns-589.awsdns-09.net (205.251.194.77)1
ns-589.awsdns-09.net (2600:9000:5302:4d00::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-1851.awsdns-39.co.uk 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

warn

22 records at the apex

Found

Read from
205.251.197.250:53
TypeValueTTL
SOAns-1851.awsdns-39.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1530.awsdns-63.org.172800
NSns-1851.awsdns-39.co.uk.172800
NSns-317.awsdns-39.com.172800
NSns-589.awsdns-09.net.172800
A35.174.46.4760
A3.224.221.19460
MX1 aspmx.l.google.com.300
MX10 aspmx2.googlemail.com.300
MX10 aspmx3.googlemail.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"ahrefs-site-verification_91983c82f335583f84096a519eb9097b9f0b380c176547a77dd9d44fe3ab082d"300
TXT"facebook-domain-verification=s2fx0txojtnuik8b8vp603wzj5aaes"300
TXT"google-site-verification=-uXJuqkB9nVKzDxvwCOn_-yEYZHqwRxleE3BQUDvNQY"300
TXT"google-site-verification=8jv2jH5pF_1VzrHGcJoOIt965wh_jmXXjMWbR2ldMa8"300
TXT"google-site-verification=NTp9nr5h_UTSl-sUIFJGFkbDwEbN5z0yKPp7IPhG1jY"300
TXT"google-site-verification=WSvvWWD2gGmxC3dvaqMlDZh4tfrvvx0MjZoszNMboxI"300
TXT"google-site-verification=kDnaRbjahjACfMKUf9KnX_CBqfl8jjj9SGpzI_qbwl0"300
TXT"google-site-verification=l-pj6BCs_hkFjeEKPMSsxeSrb2wRnbhR2TXM3K0OBh4"300
TXT"linkedin-site-verification=f47f9c7f-5e03-4045-b853-1fbc9459bb5c"300
TXT"v=spf1 include:_spf.google.com include:helpscoutemail.com include:amazonses.com include:mailgun.org include:mail.zendesk.com ~all"300

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.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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