uptodown.com

Checked 22 October 2026, 11:16 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 6 info

Registration

info

.com generic · Interdominios, Inc. · expires 2033-06-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Interdominios, Inc.
Registered
20 December 2002
Last changed
27 March 2024
Expires
24 June 2033
Status
client transfer prohibited
Registry nameservers
pns51.cloudns.net, pns52.cloudns.net, pns53.cloudns.net, pns54.cloudns.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 2033-06-24 #3
    The registration is valid until 2033-06-24 (2437 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

pns51.cloudns.net, pns52.cloudns.net, pns53.cloudns.net, pns54.cloudns.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
pns51.cloudns.net, pns52.cloudns.net, pns53.cloudns.net, pns54.cloudns.net
NS in the zone
pns51.cloudns.net, pns52.cloudns.net, pns53.cloudns.net, pns54.cloudns.net
NameserverAddressesNetwork (AS)Glue
pns51.cloudns.net185.136.96.192 2a06:fb00:1::1:192AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG-
pns52.cloudns.net185.136.97.192 2a06:fb00:1::2:192AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG-
pns53.cloudns.net185.136.98.192 2a06:fb00:1::3:192AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG-
pns54.cloudns.net185.136.99.192 2a06:fb00:1::4:192AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG-

Checks

  • ✓ 4 nameservers #6
    Delegated to pns51.cloudns.net, pns52.cloudns.net, pns53.cloudns.net, pns54.cloudns.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a06:fb00:1::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS203391 (CLOUDNSNET - Cloud DNS Ltd, BG): 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
  • i
    All nameserver names under .net
    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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
pns51.cloudns.net 185.136.96.192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7
pns51.cloudns.net 2a06:fb00:1::1:192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7
pns52.cloudns.net 185.136.97.192NOERROR, 4 ms, authoritativenoyes / yesrefusedde3-7
pns52.cloudns.net 2a06:fb00:1::2:192NOERROR, 4 ms, authoritativenoyes / yesrefusedde3-7
pns53.cloudns.net 185.136.98.192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7
pns53.cloudns.net 2a06:fb00:1::3:192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7
pns54.cloudns.net 185.136.99.192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7
pns54.cloudns.net 2a06:fb00:1::4:192NOERROR, 5 ms, authoritativenoyes / yesrefusedde3-7

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: pns51.cloudns.net: "de3-7"; pns52.cloudns.net: "de3-7"; pns53.cloudns.net: "de3-7"; pns54.cloudns.net: "de3-7".
    #17
  • ✓ 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 2026101201 · primary pns51.cloudns.net

Found

Primary (MNAME)
pns51.cloudns.net
Contact (RNAME)
support.cloudns.net
Serial
2026101201
Refresh / retry
7200 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
pns51.cloudns.net (185.136.96.192)2026101201
pns51.cloudns.net (2a06:fb00:1::1:192)2026101201
pns52.cloudns.net (185.136.97.192)2026101201
pns52.cloudns.net (2a06:fb00:1::2:192)2026101201
pns53.cloudns.net (185.136.98.192)2026101201
pns53.cloudns.net (2a06:fb00:1::3:192)2026101201
pns54.cloudns.net (185.136.99.192)2026101201
pns54.cloudns.net (2a06:fb00:1::4:192)2026101201

Checks

  • ✓ Serial 2026101201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver pns51.cloudns.net is one of the listed nameservers.
  • ✓ Contact support@cloudns.net #25
    The SOA RNAME support.cloudns.net means support@cloudns.net.
  • ✓ Date-based serial #26
    The serial 2026101201 follows the YYYYMMDDnn convention (2026-10-12).

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

17 records at the apex

Found

Read from
185.136.96.192:53
TypeValueTTL
SOApns51.cloudns.net. support.cloudns.net. 2026101201 7200 1800 1209600 36003600
NSpns54.cloudns.net.1800
NSpns51.cloudns.net.1800
NSpns52.cloudns.net.1800
NSpns53.cloudns.net.1800
A51.210.117.803600
MX1 smtp.google.com.1800
TXT"google-site-verification=PKZJ2PSGS9J-u5BzJ0vkwDbcdXzkTI-PmkLByEMdZHc"1800
TXT"facebook-domain-verification=at7fsl7o1u12q337zwsmvklwc97oji"1800
TXT"google-site-verification=6iTfk_vy42k0vUbeNEhr5yPkAJpCEgEOfcoAuwMv1No"1800
TXT"v=spf1 include:_spf.google.com include:spf.mandrillapp.com ~all"1800
TXT"fsly-domain-delegation-882389793323-20231114"1800
TXT"google-site-verification=-_SzzMnJ-us83IZXuA3dMqZ9Y_air755Ruppotx7Q8c"1800
TXT"openai-domain-verification=dv-77D0l25TDUbuIo9mhouws19Y"1800
CAA0 issue "certainly.com"1800
CAA0 issue "sectigo.com"1800
CAA0 issue "letsencrypt.org"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 30m, NS 30m. The NS TTL at the parent is 2d and in the zone 30m; resolvers may use either.
  • ✓ 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
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: certainly.com, sectigo.com, letsencrypt.org.