mention.com

Checked 22 October 2026, 09:50 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · Gandi SAS · expires 2027-11-19

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Gandi SAS
Registered
20 November 1998
Last changed
19 October 2026
Expires
19 November 2027
Status
client transfer prohibited
Registry nameservers
ns-1786.awsdns-31.co.uk, ns-640.awsdns-16.net, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.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 2027-11-19 #3
    The registration is valid until 2027-11-19 (392 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

pass

ns-1786.awsdns-31.co.uk, ns-640.awsdns-16.net, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1786.awsdns-31.co.uk, ns-640.awsdns-16.net, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com
NS in the zone
ns-1786.awsdns-31.co.uk, ns-640.awsdns-16.net, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com
NameserverAddressesNetwork (AS)Glue
ns-1786.awsdns-31.co.uk205.251.198.250 2600:9000:5306:fa00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-640.awsdns-16.net205.251.194.128 2600:9000:5302:8000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-cloud-c3.googledomains.com216.239.36.108 2001:4860:4802:36::6cAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US2001:4860:4802:36::6c 216.239.36.108
ns-cloud-c4.googledomains.com216.239.38.108 2001:4860:4802:38::6cAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US2001:4860:4802:38::6c 216.239.38.108

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1786.awsdns-31.co.uk, ns-640.awsdns-16.net, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.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 3 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15169 (GOOGLE - Google LLC, US): 4 addresses; AS16509 (AMAZON-02 - Amazon.com, Inc., US): 4 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .com, .net, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1786.awsdns-31.co.uk 205.251.198.250NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1786.awsdns-31.co.uk 2600:9000:5306:fa00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-640.awsdns-16.net 205.251.194.128NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-640.awsdns-16.net 2600:9000:5302:8000::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-cloud-c3.googledomains.com 216.239.36.108NOERROR, 41 ms, authoritativenoyes / yesrefused-
ns-cloud-c3.googledomains.com 2001:4860:4802:36::6cNOERROR, 42 ms, authoritativenoyes / yesrefused-
ns-cloud-c4.googledomains.com 216.239.38.108NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns-cloud-c4.googledomains.com 2001:4860:4802:38::6cNOERROR, 12 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

warn

serial 1 · primary ns-376.awsdns-47.com

Found

Primary (MNAME)
ns-376.awsdns-47.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-1786.awsdns-31.co.uk (205.251.198.250)1
ns-1786.awsdns-31.co.uk (2600:9000:5306:fa00::1)1
ns-640.awsdns-16.net (205.251.194.128)1
ns-640.awsdns-16.net (2600:9000:5302:8000::1)1
ns-cloud-c3.googledomains.com (216.239.36.108)2
ns-cloud-c3.googledomains.com (2001:4860:4802:36::6c)2
ns-cloud-c4.googledomains.com (216.239.38.108)2
ns-cloud-c4.googledomains.com (2001:4860:4802:38::6c)2

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 1 on ns-1786.awsdns-31.co.uk (205.251.198.250), ns-1786.awsdns-31.co.uk (2600:9000:5306:fa00::1), ns-640.awsdns-16.net (205.251.194.128), ns-640.awsdns-16.net (2600:9000:5302:8000::1); 2 on ns-cloud-c3.googledomains.com (216.239.36.108), ns-cloud-c3.googledomains.com (2001:4860:4802:36::6c), ns-cloud-c4.googledomains.com (216.239.38.108), ns-cloud-c4.googledomains.com (2001:4860:4802:38::6c). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • i
    Hidden master
    The primary nameserver ns-376.awsdns-47.com is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ 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

20 records at the apex

Found

Read from
205.251.198.250:53
TypeValueTTL
SOAns-376.awsdns-47.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1786.awsdns-31.co.uk.172800
NSns-640.awsdns-16.net.172800
NSns-cloud-c3.googledomains.com.172800
NSns-cloud-c4.googledomains.com.172800
A162.159.135.42300
MX1 aspmx.l.google.com.28800
MX3 alt1.aspmx.l.google.com.28800
MX3 alt2.aspmx.l.google.com.28800
MX5 aspmx2.googlemail.com.28800
MX5 aspmx3.googlemail.com.28800
MX5 aspmx4.googlemail.com.28800
MX5 aspmx5.googlemail.com.28800
TXT"apple-domain-verification=Q01yCQ1bZsPDNzRb"28800
TXT"google-site-verification=B3emO8I_u_07X25_mPw6iPRkqoi1vPxjCASH84GyvzQ"28800
TXT"google-site-verification=HBHnCPStbcWQc-37fAWTw1i0VLqf84VxSpdrRmM8tdA"28800
TXT"google-site-verification=i6ukcADSiJPXHAyCntCAHzN91tsPDvd9Z6shBsgehJk"28800
TXT"google-site-verification=nuAA9uWFZK6k5OeDNZWE77x8vhXwJKgGAKsx0x7Tf4M"28800
TXT"status-page-domain-verification=9ly7xfv1zs6z"28800
TXT"v=spf1 include:spf.mailjet.com include:spf.mail.intercom.io include:_spf.google.com include:aspmx.pardot.com ~all"28800

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 8h, 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