nabble.com

Checked 22 October 2026, 09:54 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · Internet Domain Service BS Corp · expires 2026-12-28

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Internet Domain Service BS Corp
Registered
28 December 2004
Last changed
28 November 2025
Expires
28 December 2026
Status
client transfer prohibited
Registry nameservers
ns-canada.topdns.com, ns-uk.topdns.com, ns-usa.topdns.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 2026-12-28 #3
    The registration is valid until 2026-12-28 (66 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

warn

ns-canada.topdns.com, ns-uk.topdns.com, ns-usa.topdns.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-canada.topdns.com, ns-uk.topdns.com, ns-usa.topdns.com
NS in the zone
ns-canada.topdns.com, ns-uk.topdns.com, ns-usa.topdns.com
NameserverAddressesNetwork (AS)Glue
ns-canada.topdns.com185.7.78.112AS43350 NFORCE - NForce Entertainment B.V., NL185.7.78.112
ns-uk.topdns.com43.245.50.34AS36236 NETACTUATE - NetActuate, Inc, US43.245.50.34
ns-usa.topdns.com161.35.225.48 143.198.68.197AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US143.198.68.197 161.35.225.48

Checks

  • ✓ 3 nameservers #6
    Delegated to ns-canada.topdns.com, ns-uk.topdns.com, ns-usa.topdns.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 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US): 2 addresses; AS36236 (NETACTUATE - NetActuate, Inc, US): 1 address; AS43350 (NFORCE - NForce Entertainment B.V., NL): 1 address.
  • 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
ns-canada.topdns.com 185.7.78.112NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns-uk.topdns.com 43.245.50.34NOERROR, 158 ms, authoritativenoyes / yesrefused-
ns-usa.topdns.com 161.35.225.48NOERROR, 159 ms, authoritativenoyes / yesrefused-
ns-usa.topdns.com 143.198.68.197NOERROR, 160 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

pass

serial 2026080300 · primary ns-canada.topdns.com

Found

Primary (MNAME)
ns-canada.topdns.com
Contact (RNAME)
hostmaster.topdns.com
Serial
2026080300
Refresh / retry
43200 s / 900 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns-canada.topdns.com (185.7.78.112)2026080300
ns-uk.topdns.com (43.245.50.34)2026080300
ns-usa.topdns.com (161.35.225.48)2026080300
ns-usa.topdns.com (143.198.68.197)2026080300

Checks

  • ✓ Serial 2026080300 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 15m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-canada.topdns.com is one of the listed nameservers.
  • ✓ Contact hostmaster@topdns.com #25
    The SOA RNAME hostmaster.topdns.com means hostmaster@topdns.com.
  • ✓ Date-based serial #26
    The serial 2026080300 follows the YYYYMMDDnn convention (2026-08-03).

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

9 records at the apex

Found

Read from
185.7.78.112:53
TypeValueTTL
SOAns-canada.topdns.com. hostmaster.topdns.com. 2026080300 43200 900 1209600 36007200
NSns-canada.topdns.com.3600
NSns-usa.topdns.com.3600
NSns-uk.topdns.com.3600
A199.38.81.1093600
MX10 mail.anonaddy.me.3600
MX20 mail2.anonaddy.me.3600
TXT"aa-verify=b4e3956ce456715f91a83c6330c7ac5d0fd38307"3600
TXT"v=spf1 ip4:162.253.133.81 include:spf.anonaddy.me -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; 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