tnt.com

Checked 22 October 2026, 11:10 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-10-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
3 October 1996
Last changed
28 September 2026
Expires
2 October 2027
Status
client transfer prohibited
Registry nameservers
a10.dns.fedex.com, a5.dns.fedex.com, a6.dns.fedex.com, a7.dns.fedex.com, a8.dns.fedex.com, a9.dns.fedex.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 2027-10-02 #3
    The registration is valid until 2027-10-02 (344 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

a10.dns.fedex.com, a5.dns.fedex.com, a6.dns.fedex.com, a7.dns.fedex.com, a8.dns.fedex.com, a9.dns.fedex.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a10.dns.fedex.com, a5.dns.fedex.com, a6.dns.fedex.com, a7.dns.fedex.com, a8.dns.fedex.com, a9.dns.fedex.com
NS in the zone
a10.dns.fedex.com, a5.dns.fedex.com, a6.dns.fedex.com, a7.dns.fedex.com, a8.dns.fedex.com, a9.dns.fedex.com
NameserverAddressesNetwork (AS)Glue
a10.dns.fedex.com170.170.229.133 2620:1bc:1014:30ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.229.133 2620:1bc:1014:30ff::53:0
a5.dns.fedex.com170.170.193.133 2620:1bc:101c:10ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.193.133 2620:1bc:101c:10ff::53:0
a6.dns.fedex.com170.170.195.133 2620:1bc:101c:20ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.195.133 2620:1bc:101c:20ff::53:0
a7.dns.fedex.com170.170.197.133 2620:1bc:101c:30ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.197.133 2620:1bc:101c:30ff::53:0
a8.dns.fedex.com170.170.225.133 2620:1bc:1014:10ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.225.133 2620:1bc:1014:10ff::53:0
a9.dns.fedex.com170.170.227.133 2620:1bc:1014:20ff::53:0AS7726 FITC-AS - FedEx Internet Technologies Corporation, US AS7726 FITC-AS - FedEx Internet Technologies Corporation, US170.170.227.133 2620:1bc:1014:20ff::53:0

Checks

  • ✓ 6 nameservers #6
    Delegated to a10.dns.fedex.com, a5.dns.fedex.com, a6.dns.fedex.com, a7.dns.fedex.com, a8.dns.fedex.com, a9.dns.fedex.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 6 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS7726 (FITC-AS - FedEx Internet Technologies Corporation, US): 12 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

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a10.dns.fedex.com 170.170.229.133NOERROR, 164 ms, authoritativenoyes / yesrefused9.20.29-S1
a10.dns.fedex.com 2620:1bc:1014:30ff::53:0NOERROR, 155 ms, authoritativenoyes / yesrefused9.20.29-S1
a5.dns.fedex.com 170.170.193.133NOERROR, 118 ms, authoritativenoyes / yesrefused9.20.29-S1
a5.dns.fedex.com 2620:1bc:101c:10ff::53:0NOERROR, 106 ms, authoritativenoyes / yesrefused9.20.29-S1
a6.dns.fedex.com 170.170.195.133NOERROR, 117 ms, authoritativenoyes / yesrefused9.20.29-S1
a6.dns.fedex.com 2620:1bc:101c:20ff::53:0NOERROR, 111 ms, authoritativenoyes / yesrefused9.20.29-S1
a7.dns.fedex.com 170.170.197.133NOERROR, 114 ms, authoritativenoyes / yesrefused9.20.29-S1
a7.dns.fedex.com 2620:1bc:101c:30ff::53:0NOERROR, 106 ms, authoritativenoyes / yesrefused9.20.29-S1
a8.dns.fedex.com 170.170.225.133NOERROR, 162 ms, authoritativenoyes / yesrefused9.20.29-S1
a8.dns.fedex.com 2620:1bc:1014:10ff::53:0NOERROR, 159 ms, authoritativenoyes / yesrefused9.20.29-S1
a9.dns.fedex.com 170.170.227.133NOERROR, 162 ms, authoritativenoyes / yesrefused9.20.29-S1
a9.dns.fedex.com 2620:1bc:1014:20ff::53:0NOERROR, 142 ms, authoritativenoyes / yesrefused9.20.29-S1

Checks

  • ✓ All respond #14
    All 12 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a10.dns.fedex.com: "9.20.29-S1"; a5.dns.fedex.com: "9.20.29-S1"; a6.dns.fedex.com: "9.20.29-S1"; a7.dns.fedex.com: "9.20.29-S1"; a8.dns.fedex.com: "9.20.29-S1"; a9.dns.fedex.com: "9.20.29-S1". Hide or replace the version string.
    #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 398 · primary a8.dns.fedex.com

Found

Primary (MNAME)
a8.dns.fedex.com
Contact (RNAME)
dnsemea.fedex.com
Serial
398
Refresh / retry
10800 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a10.dns.fedex.com (170.170.229.133)398
a10.dns.fedex.com (2620:1bc:1014:30ff::53:0)398
a5.dns.fedex.com (170.170.193.133)398
a5.dns.fedex.com (2620:1bc:101c:10ff::53:0)398
a6.dns.fedex.com (170.170.195.133)398
a6.dns.fedex.com (2620:1bc:101c:20ff::53:0)398
a7.dns.fedex.com (170.170.197.133)398
a7.dns.fedex.com (2620:1bc:101c:30ff::53:0)398
a8.dns.fedex.com (170.170.225.133)398
a8.dns.fedex.com (2620:1bc:1014:10ff::53:0)398
a9.dns.fedex.com (170.170.227.133)398
a9.dns.fedex.com (2620:1bc:1014:20ff::53:0)398

Checks

  • ✓ Serial 398 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 28d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a8.dns.fedex.com is one of the listed nameservers.
  • ✓ Contact dnsemea@fedex.com #25
    The SOA RNAME dnsemea.fedex.com means dnsemea@fedex.com.
  • ✓ Counter serial #26
    The serial 398 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

18 records at the apex

Found

Read from
170.170.229.133:53
TypeValueTTL
SOAa8.dns.fedex.com. dnsemea.fedex.com. 398 10800 3600 2419200 90028800
NSa7.dns.fedex.com.86400
NSa5.dns.fedex.com.86400
NSa9.dns.fedex.com.86400
NSa10.dns.fedex.com.86400
NSa6.dns.fedex.com.86400
NSa8.dns.fedex.com.86400
A164.39.122.271800
MX10 mxa-0002ee02.gslb.pphosted.com.1800
MX10 mxb-0002ee02.gslb.pphosted.com.1800
TXT"google-site-verification=R-1lF15op6lh1EwXMLzu0PmM8F_wid1IAYhptzAQTHY"1800
TXT"MS=ms35281443"1800
TXT"google-site-verification=K8JfMKDw0EGl7RJ5OOX6FNYmFmld_Opp0lFtoVaaWuc"1800
TXT"adobe-idp-site-verification=ad9300fb-e5f6-4f08-888c-c0434ef61948"1800
TXT"00D20000000lGYh=1TBJ60000004CG4"1800
TXT"00D24000000KXww=1TBJ6000000sY1u"1800
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all"1800
TXT"google-site-verification=MvAJkTNZYF0Q9PMR5qzwOoM5SQF8hebKFV8Eg-OTwjM"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 30m, MX 30m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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