utorrent.com

Checked 22 October 2026, 11:20 UTC · via 8.8.8.8
✗Problems found
23 passed 3 warnings 1 failed 4 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-10-12

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
12 October 2004
Last changed
16 July 2026
Expires
12 October 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.utorrent.com, ns15.utorrent.com, ns16.utorrent.com, ns3.utorrent.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 2027-10-12 #3
    The registration is valid until 2027-10-12 (355 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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

ns1.utorrent.com, ns15.utorrent.com, ns16.utorrent.com, ns3.utorrent.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.utorrent.com, ns15.utorrent.com, ns16.utorrent.com, ns3.utorrent.com
NS in the zone
ns15.utorrent.com, ns16.utorrent.com, ns17.utorrent.com, ns18.utorrent.com
NameserverAddressesNetwork (AS)Glue
ns1.utorrent.com (parent only)216.45.48.250AS36352 AS-COLOCROSSING - HostPapa, US216.45.48.250
ns15.utorrent.com13.216.28.215AS14618 AMAZON-AES - Amazon.com, Inc., US13.216.28.215
ns16.utorrent.com184.72.235.127AS14618 AMAZON-AES - Amazon.com, Inc., US184.72.235.127
ns17.utorrent.com (zone only)34.209.46.223AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns18.utorrent.com (zone only)32.188.55.112AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns3.utorrent.com (parent only)204.152.200.186AS36352 AS-COLOCROSSING - HostPapa, US204.152.200.186

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.utorrent.com, ns15.utorrent.com, ns16.utorrent.com, ns3.utorrent.com.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.utorrent.com, ns3.utorrent.com; only in the zone: ns17.utorrent.com, ns18.utorrent.com. ns15.utorrent.com, ns16.utorrent.com, ns17.utorrent.com, ns18.utorrent.com report NS ns15.utorrent.com ns16.utorrent.com ns17.utorrent.com ns18.utorrent.com.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.utorrent.com, ns15.utorrent.com, ns16.utorrent.com, ns3.utorrent.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 6 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS14618 (AMAZON-AES - Amazon.com, Inc., US): 2 addresses; AS16509 (AMAZON-02 - Amazon.com, Inc., US): 2 addresses; AS36352 (AS-COLOCROSSING - HostPapa, US): 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

fail

4 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.utorrent.com 216.45.48.250no responsenono / no--
ns15.utorrent.com 13.216.28.215NOERROR, 102 ms, authoritativenoyes / yesrefused-
ns16.utorrent.com 184.72.235.127NOERROR, 96 ms, authoritativenoyes / yesrefused-
ns17.utorrent.com 34.209.46.223NOERROR, 264 ms, authoritativenoyes / yesrefused-
ns18.utorrent.com 32.188.55.112NOERROR, 264 ms, authoritativenoyes / yesrefused-
ns3.utorrent.com 204.152.200.186no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: ns1.utorrent.com (216.45.48.250): read udp 46.225.38.91:57747->216.45.48.250:53: read: connection refused; ns3.utorrent.com (204.152.200.186): read udp 46.225.38.91:46072->204.152.200.186:53: i/o timeout.
    #14
  • ✓ 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

info

serial 2026101505 · primary dns.bittorrent.com

Found

Primary (MNAME)
dns.bittorrent.com
Contact (RNAME)
hostmaster.utorrent.com
Serial
2026101505
Refresh / retry
3600 s / 900 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns15.utorrent.com (13.216.28.215)2026101505
ns16.utorrent.com (184.72.235.127)2026101505
ns17.utorrent.com (34.209.46.223)2026101505
ns18.utorrent.com (32.188.55.112)2026101505

Checks

  • ✓ Serial 2026101505 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 14d, negative TTL 5m.
  • i
    Hidden master
    The primary nameserver dns.bittorrent.com is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@utorrent.com #25
    The SOA RNAME hostmaster.utorrent.com means hostmaster@utorrent.com.
  • ✓ Date-based serial #26
    The serial 2026101505 follows the YYYYMMDDnn convention (2026-10-15).

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

14 records at the apex

Found

Read from
13.216.28.215:53
TypeValueTTL
SOAdns.bittorrent.com. hostmaster.utorrent.com. 2026101505 3600 900 1209600 3003600
NSns15.utorrent.com.900
NSns16.utorrent.com.900
NSns18.utorrent.com.900
NSns17.utorrent.com.900
A34.201.157.226900
MX1 ASPMX.L.GOOGLE.com.3600
MX5 ALT1.ASPMX.L.GOOGLE.com.3600
MX5 ALT2.ASPMX.L.GOOGLE.com.3600
MX10 ASPMX2.GOOGLEMAIL.com.3600
MX10 ASPMX3.GOOGLEMAIL.com.3600
TXT"v=spf1 a mx include:_spf.google.com ip4:208.72.193.0/24 ~all"900
TXT"google-site-verification=rfVjpbGmYGvhs7tMAk3-_1TzJ9jUdjurNCKer7pJOzs"900
TXT"globalsign-domain-verification=Frfvs0d4ECwYbPQcxP1kJATi1matUj01BUJesg2LzE"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 1h, NS 15m. The NS TTL at the parent is 2d and in the zone 15m; 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