ucoz.com

Checked 22 October 2026, 11:14 UTC · via 8.8.8.8
✗Problems found
22 passed 3 warnings 1 failed 5 info

Registration

info

.com generic · Registrar R01 LLC · expires 2027-08-12

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Registrar R01 LLC
Registered
12 August 2005
Last changed
19 June 2026
Expires
12 August 2027
Status
active
Registry nameservers
ns1.ucoz.net, ns2.ucoz.net, ns3.ucoz.net
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 2027-08-12 #3
    The registration is valid until 2027-08-12 (294 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

warn

ns1.ucoz.net, ns2.ucoz.net, ns3.ucoz.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.ucoz.net, ns2.ucoz.net, ns3.ucoz.net
NS in the zone
ns1.ucoz.net, ns2.ucoz.net, ns3.ucoz.net
NameserverAddressesNetwork (AS)Glue
ns1.ucoz.net89.169.45.45AS9123 TimeWeb-AS - JSC _TIMEWEB_, RU-
ns2.ucoz.net45.88.172.133AS216154 CLODO - CLODO CLOUD SERVICE CO. L.L.C, AE-
ns3.ucoz.net72.56.93.67AS210976 TWC-EU - Timeweb, LLP, KZ-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.ucoz.net, ns2.ucoz.net, ns3.ucoz.net.
  • ✓ 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 3 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS210976 (TWC-EU - Timeweb, LLP, KZ): 1 address; AS216154 (CLODO - CLODO CLOUD SERVICE CO. L.L.C, AE): 1 address; AS9123 (TimeWeb-AS - JSC _TIMEWEB_, RU): 1 address.
  • i
    All nameserver names under .net
    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

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.ucoz.net 89.169.45.45NOERROR, 47 ms, authoritativenono / yesrefused9.18.49-1~deb12u2-Debian
ns2.ucoz.net 45.88.172.133NOERROR, 9 ms, authoritativenoyes / yesrefusedunknown
ns3.ucoz.net 72.56.93.67NOERROR, 12 ms, authoritativenoyes / yesrefusedunknown

Checks

  • ✓ All respond #14
    All 3 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: ns1.ucoz.net: "9.18.49-1~deb12u2-Debian". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.ucoz.net (89.169.45.45): dial tcp 89.169.45.45:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026102012 · primary ns1.ucoz.net

Found

Primary (MNAME)
ns1.ucoz.net
Contact (RNAME)
dnsadmin.ucoz.net
Serial
2026102012
Refresh / retry
10800 s / 900 s
Expire
2592000 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns1.ucoz.net (89.169.45.45)2026102012
ns2.ucoz.net (45.88.172.133)2026102012
ns3.ucoz.net (72.56.93.67)2026102012

Checks

  • ✓ Serial 2026102012 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 15m, expire 30d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ucoz.net is one of the listed nameservers.
  • ✓ Contact dnsadmin@ucoz.net #25
    The SOA RNAME dnsadmin.ucoz.net means dnsadmin@ucoz.net.
  • ✓ Date-based serial #26
    The serial 2026102012 follows the YYYYMMDDnn convention (2026-10-20).

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

8 records at the apex

Found

Read from
89.169.45.45:53
TypeValueTTL
SOAns1.ucoz.net. dnsadmin.ucoz.net. 2026102012 10800 900 2592000 1080014400
NSns2.ucoz.net.14400
NSns3.ucoz.net.14400
NSns1.ucoz.net.14400
A103.90.74.3414400
MX1 mx100.ucozmail.com.14400
TXT"google-site-verification=jbcNmyfL6NWeB-OatGSgCWwRcNd3GmVTrrAujouuLdY"14400
TXT"v=spf1 +mx ip4:195.216.243.0/24 ip4:92.241.179.0/24 ip4:217.199.217.0/24 ip4:208.100.61.0/24 ip4:213.174.157.128/25 ip4:193.109.247.0/24 +ip4:193.109.246.0/24 -all"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 2d and in the zone 4h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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