16mb.com

Checked 22 October 2026, 07:31 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-07-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
16 July 2002
Last changed
17 July 2026
Expires
16 July 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.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 2027-07-16 #3
    The registration is valid until 2027-07-16 (267 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

warn

ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.com
NS in the zone
ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.com
NameserverAddressesNetwork (AS)Glue
ns1.16mb.com212.1.215.66AS47583 AS-HOSTINGER - Hostinger International Limited, CY212.1.215.66
ns2.16mb.com31.220.23.1AS47583 AS-HOSTINGER - Hostinger International Limited, CY31.220.23.1
ns3.16mb.com145.14.150.132AS47583 AS-HOSTINGER - Hostinger International Limited, CY145.14.150.132
ns4.16mb.com145.14.155.34AS47583 AS-HOSTINGER - Hostinger International Limited, CY145.14.155.34

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.16mb.com, ns2.16mb.com, ns3.16mb.com, ns4.16mb.com.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS47583 (AS-HOSTINGER - Hostinger International Limited, CY): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.16mb.com 212.1.215.66NOERROR, 119 ms, authoritativenoyes / yesrefused-
ns2.16mb.com 31.220.23.1NOERROR, 20 ms, authoritativenoyes / yesrefused-
ns3.16mb.com 145.14.150.132NOERROR, 15 ms, authoritativenoyes / yesrefused-
ns4.16mb.com 145.14.155.34NOERROR, 20 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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

info

serial 2 · primary ns1.hostinger.com

Found

Primary (MNAME)
ns1.hostinger.com
Contact (RNAME)
dns.hostinger.com
Serial
2
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.16mb.com (212.1.215.66)2
ns2.16mb.com (31.220.23.1)2
ns3.16mb.com (145.14.150.132)2
ns4.16mb.com (145.14.155.34)2

Checks

  • ✓ Serial 2 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver ns1.hostinger.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 dns@hostinger.com #25
    The SOA RNAME dns.hostinger.com means dns@hostinger.com.
  • ✓ Counter serial #26
    The serial 2 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

5 records at the apex

Found

Read from
212.1.215.66:53
TypeValueTTL
SOAns1.hostinger.com. dns.hostinger.com. 2 10800 3600 604800 36003600
NSns3.16mb.com.14400
NSns2.16mb.com.14400
NSns4.16mb.com.14400
NSns1.16mb.com.14400

Checks

  • ✓ TTLs within range #32
    TTLs: NS 4h. The NS TTL at the parent is 2d and in the zone 4h; resolvers may use either.
  • ✓ 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