linuxmint.com

Checked 22 October 2026, 09:36 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 6 info

Registration

info

.com generic · Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA · expires 2031-06-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA
Registered
7 June 2006
Last changed
3 May 2026
Expires
7 June 2031
Status
active
Registry nameservers
ns1.loopiagroup.com, ns2.loopiagroup.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 2031-06-07 #3
    The registration is valid until 2031-06-07 (1689 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns1.loopiagroup.com, ns2.loopiagroup.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.loopiagroup.com, ns2.loopiagroup.com
NS in the zone
ns1.loopiagroup.com, ns2.loopiagroup.com
NameserverAddressesNetwork (AS)Glue
ns1.loopiagroup.com45.10.97.11 2a10:bbc0::11AS25234 ACTIVE24-AS - ACTIVE 24, s.r.o., CZ AS25234 ACTIVE24-AS - ACTIVE 24, s.r.o., CZ2a10:bbc0::11 45.10.97.11
ns2.loopiagroup.com185.71.159.12 2a02:250:3::12AS25234 ACTIVE24-AS - ACTIVE 24, s.r.o., CZ AS25234 ACTIVE24-AS - ACTIVE 24, s.r.o., CZ185.71.159.12 2a02:250:3::12

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.loopiagroup.com, ns2.loopiagroup.com.
    #6
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS25234 (ACTIVE24-AS - ACTIVE 24, s.r.o., CZ): 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.loopiagroup.com 45.10.97.11NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns1.loopiagroup.com 2a10:bbc0::11NOERROR, 28 ms, authoritativenoyes / yesrefused-
ns2.loopiagroup.com 185.71.159.12NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns2.loopiagroup.com 2a02:250:3::12NOERROR, 29 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 1792019597 · primary ns1.loopiagroup.com

Found

Primary (MNAME)
ns1.loopiagroup.com
Contact (RNAME)
dnsadmin.loopiagroup.com
Serial
1792019597
Refresh / retry
7200 s / 2048 s
Expire
1048576 s
Negative TTL
2560 s

Serial per nameserver

NameserverSerial
ns1.loopiagroup.com (45.10.97.11)1792019597
ns1.loopiagroup.com (2a10:bbc0::11)1792019597
ns2.loopiagroup.com (185.71.159.12)1792019597
ns2.loopiagroup.com (2a02:250:3::12)1792019597

Checks

  • ✓ Serial 1792019597 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 34m8s, expire 291h16m16s, negative TTL 42m40s.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.loopiagroup.com is one of the listed nameservers.
  • ✓ Contact dnsadmin@loopiagroup.com #25
    The SOA RNAME dnsadmin.loopiagroup.com means dnsadmin@loopiagroup.com.
  • ✓ Timestamp serial #26
    The serial 1792019597 is a Unix timestamp (2026-10-14 23:13 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 8-byte salt
Signatures valid until
21 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
38259ECDSAP256SHA256 (13)SHA256 5E450D335244941B…yes

DNSKEY in the zone

Key tagRoleAlgorithm
22530ZSK (256)ECDSAP256SHA256 (13)
38259KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 38259 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-21 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-21 19:49 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 0 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

info

10 records at the apex

Found

Read from
45.10.97.11:53
TypeValueTTL
SOAns1.loopiagroup.com. dnsadmin.loopiagroup.com. 1792019597 7200 2048 1048576 256086400
NSns1.loopiagroup.com.3600
NSns2.loopiagroup.com.3600
A192.124.249.533600
MX1 aspmx.l.google.com.3600
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
MX10 alt3.aspmx.l.google.com.3600
MX10 alt4.aspmx.l.google.com.3600
TXT"v=spf1 mx a include:_spf.google.com ip4:68.235.52.243/32 ip4:68.235.52.19/32 ip4:213.175.215.218/32 ip4:109.203.104.224/32 include:_spf.m101.websupport.se ~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