ksbxbz.com

Checked 22 October 2026, 09:33 UTC · via 8.8.8.8
✗Problems found
21 passed 5 warnings 1 failed 4 info

Registration

info

.com generic · July Name Limited · expires 2027-07-13

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
July Name Limited
Registered
13 July 2023
Last changed
24 August 2026
Expires
13 July 2027
Status
client transfer prohibited
Registry nameservers
ns1.julydns.com, ns2.julydns.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 2027-07-13 #3
    The registration is valid until 2027-07-13 (263 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

warn

ns1.julydns.com, ns2.julydns.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.julydns.com, ns2.julydns.com
NS in the zone
ns1.julydns.com, ns2.julydns.com
NameserverAddressesNetwork (AS)Glue
ns1.julydns.com162.159.48.223 101.37.78.254AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN162.159.48.223
ns2.julydns.com162.159.27.251AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.48.223

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.julydns.com, ns2.julydns.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.julydns.com (glue 162.159.48.223, zone 162.159.48.223, 101.37.78.254); ns2.julydns.com (glue 162.159.48.223, zone 162.159.27.251). Update the glue at your registrar.
    #8
  • ✓ 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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 2 addresses; AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 1 address.
  • 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

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.julydns.com 162.159.48.223NOERROR, 173 ms, authoritativenoyes / yesrefused2026.10.8
ns1.julydns.com 101.37.78.254NOERROR, 170 ms, authoritativenoyes / yesrefused-
ns2.julydns.com 162.159.27.251NOERROR, 166 ms, authoritativenoyes / yesrefused2026.10.8

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.julydns.com: "2026.10.8"; ns2.julydns.com: "2026.10.8". 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

warn

serial 1787549545 · primary ns1.julydns.com

Found

Primary (MNAME)
ns1.julydns.com
Contact (RNAME)
master.jmdns.com
Serial
1787549545
Refresh / retry
3600 s / 1200 s
Expire
86400 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns1.julydns.com (162.159.48.223)1787549545
ns1.julydns.com (101.37.78.254)1787549545
ns2.julydns.com (162.159.27.251)1787549545

Checks

  • ✓ Serial 1787549545 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 1h, retry 20m, expire 1d, negative TTL 10m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.julydns.com is one of the listed nameservers.
  • ✓ Contact master@jmdns.com #25
    The SOA RNAME master.jmdns.com means master@jmdns.com.
  • ✓ Timestamp serial #26
    The serial 1787549545 is a Unix timestamp (2026-08-24 05:32 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

fail

3 records at the apex

Found

Read from
162.159.48.223:53
TypeValueTTL
SOAns1.julydns.com. master.jmdns.com. 1787549545 3600 1200 86400 600600
NSns1.julydns.com.86400
NSns2.julydns.com.86400

Checks

  • ✓ TTLs within range #32
    TTLs: NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✗
    CNAME at the apex
    The zone apex is a CNAME to 9xb7m8ku.tencentdns.net. A CNAME can't coexist with the SOA and NS records (RFC 1034); use your provider's ALIAS/flattening feature instead.
    #33
  • ✓ 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