mt.com

Checked 22 October 2026, 09:53 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · COREhub, S.R.L. · expires 2027-07-10

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
COREhub, S.R.L.
Registered
12 August 1993
Last changed
11 July 2026
Expires
10 July 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.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 2027-07-10 #3
    The registration is valid until 2027-07-10 (261 days).
  • ✓ Transfer locked #4
    Registry status: client delete 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

ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.com
NS in the zone
ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.com
NameserverAddressesNetwork (AS)Glue
ns.mt.com194.68.2.142AS48540 ASMTI - METTLER-TOLEDO INTERNATIONAL INC., Wilmington, Delaware, Greifensee Branch, CH194.68.2.142
ns2.mt.com208.85.168.200AS29832 METTLER-TOLEDO-AM-NOC-ASN - Mettler-Toledo LLC, US208.85.168.200
ns3.mt.com194.68.2.143AS48540 ASMTI - METTLER-TOLEDO INTERNATIONAL INC., Wilmington, Delaware, Greifensee Branch, CH194.68.2.143
ns4.mt.com208.85.168.210AS29832 METTLER-TOLEDO-AM-NOC-ASN - Mettler-Toledo LLC, US208.85.168.210

Checks

  • ✓ 4 nameservers #6
    Delegated to ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.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: ns.mt.com, ns2.mt.com, ns3.mt.com, ns4.mt.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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS29832 (METTLER-TOLEDO-AM-NOC-ASN - Mettler-Toledo LLC, US): 2 addresses; AS48540 (ASMTI - METTLER-TOLEDO INTERNATIONAL INC., Wilmington, Delaware, Greifensee Branch, CH): 2 addresses.
  • 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.mt.com 194.68.2.142NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns2.mt.com 208.85.168.200NOERROR, 113 ms, authoritativenoyes / yesrefused-
ns3.mt.com 194.68.2.143NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns4.mt.com 208.85.168.210NOERROR, 112 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 2007078218 · primary ns.mt.com

Found

Primary (MNAME)
ns.mt.com
Contact (RNAME)
hostmaster.mt.com
Serial
2007078218
Refresh / retry
7200 s / 3600 s
Expire
2332800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns.mt.com (194.68.2.142)2007078218
ns2.mt.com (208.85.168.200)2007078218
ns3.mt.com (194.68.2.143)2007078218
ns4.mt.com (208.85.168.210)2007078218

Checks

  • ✓ Serial 2007078218 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 1h, expire 27d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.mt.com is one of the listed nameservers.
  • ✓ Contact hostmaster@mt.com #25
    The SOA RNAME hostmaster.mt.com means hostmaster@mt.com.
  • ✓ Timestamp serial #26
    The serial 2007078218 is a Unix timestamp (2033-08-08 01:43 UTC).

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

25 records at the apex

Found

Read from
194.68.2.142:53
TypeValueTTL
SOAns.mt.com. hostmaster.mt.com. 2007078218 7200 3600 2332800 36003600
NSns2.mt.com.3600
NSns4.mt.com.3600
NSns3.mt.com.3600
NSns.mt.com.3600
A195.65.50.683600
MX5 mx1.hc1191-61.eu.iphmx.com.3600
MX5 mx2.hc1191-61.eu.iphmx.com.3600
TXT"rblm42zvs6gtyjhznp8y2sb7jq3gmw1b"3600
TXT"google-site-verification=yOACm0kvellKuymbDoImbx0-htXyk70-BtG7L7dwbHo"3600
TXT"apple-domain-verification=6UGLgQ1xLqiswAmr"3600
TXT"autodesk-domain-verification=N0cQk12EP73aZQFH8i-h "3600
TXT"iContact740664"3600
TXT"twilio-domain-verification=30dd9f5837fb956aff0cd98745e6d3bf"3600
TXT"teamviewer-sso-verification=d3c51ba2ff8b4e56b5cd81df240f5688"3600
TXT"MS=ms53873030"3600
TXT"atlassian-sending-domain-verification=dcb32385-8cbc-4bf5-906e-27d8557ed903"3600
TXT"apple-domain-verification=PAY2JrHw3LIPF9dF"3600
TXT"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"3600
TXT"mongodb-site-verification=VT7SF3fPpnyf4ouS0goJN3xuJe7UzRNN"3600
TXT"atlassian-domain-verification=CmTYwWPymiSUQtRn6yyFBviJWaseOZKUPlx5zPkhtiTKesD0pD6IIJU3623vrROh"3600
TXT"MS=6B86920344CA03A442EECE80ECFCE205B0B427E5"3600
TXT"qbzgBZabp9jKpuQ2KmCGydkIFSUNjmJLglDA4KL3uFnh+xmEaUHSucg262QBsVgXAKdgwKZzTYutX2GbCvXvoQ=="3600
TXT"apple-domain-verification=zftWmS4Szry5buAV"3600
TXT"yahoo-verification-key=wD/9KOFYBB5Mja6UsuXjgaiD1bgS13PI0zOp7nxLtgE="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