Domain report: xdjxpt.com

Registration

info

.com generic · Jiangsu Bangning Science & technology Co. Ltd. · expires 2026-12-08

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.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 2026-12-08 #3

The registration is valid until 2026-12-08 (46 days).
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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.

info

dns1.dnsrun.cn, dns2.51dns.top

Nameserver	Addresses	Network (AS)	Glue
dns1.dnsrun.cn (parent only)	61.172.183.74 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8	AS4811 CHINANET-SHANGHAI-MAN - China Telecom (Group), CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN	-
dns2.51dns.top (parent only)	219.138.102.210 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8	AS136191 CHINATELECOM-HUBEI-YICHANG-IDC - YICHANG, Hubei Province, P.R.China., CN AS37963 ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.dnsrun.cn, dns2.51dns.top.

#6
✓ 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.
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One address family in one network

all IPv6 addresses are in 2408:4005:3dc::/48, while the other address family is spread over several networks.

#10
✓ 3 autonomous systems #11

The nameservers are spread over: AS136191 (CHINATELECOM-HUBEI-YICHANG-IDC - YICHANG, Hubei Province, P.R.China., CN): 1 address; AS37963 (ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd., CN): 2 addresses; AS4811 (CHINANET-SHANGHAI-MAN - China Telecom (Group), CN): 1 address.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .cn, .top.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

fail

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dns1.dnsrun.cn 61.172.183.74	NOERROR, 183 ms, authoritative	no	no / no	refused	dns server
dns1.dnsrun.cn 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8	NOERROR, 161 ms, authoritative	no	no / yes	refused	dns server
dns2.51dns.top 219.138.102.210	NOERROR, 217 ms, authoritative	no	no / no	refused	dns server
dns2.51dns.top 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8	NOERROR, 192 ms, authoritative	no	no / yes	refused	dns server

✓ 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.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: dns1.dnsrun.cn: "dns server"; dns2.51dns.top: "dns server".

#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: dns1.dnsrun.cn (61.172.183.74): dial tcp 61.172.183.74:53: i/o timeout; dns1.dnsrun.cn (2408:4005:3dc:af00:a6be:339e:a1a0:d2b8): read tcp [2a01:4f8:1c1c:eebf::1]:48450->[2408:4005:3dc:af00:a6be:339e:a1a0:d2b8]:53: i/o timeout; dns2.51dns.top (219.138.102.210): dial tcp 219.138.102.210:53: i/o timeout; dns2.51dns.top (2408:4005:3dc:af00:a6be:339e:a1a0:d2b8): read tcp [2a01:4f8:1c1c:eebf::1]:48434->[2408:4005:3dc:af00:a6be:339e:a1a0:d2b8]:53: i/o timeout.

#19
!

No EDNS

These nameservers don't support EDNS(0), needed for DNSSEC and answers larger than 512 bytes: dns1.dnsrun.cn (61.172.183.74), dns2.51dns.top (219.138.102.210).

#20
✓ Public addresses #21

All nameserver addresses are publicly routable.

info

serial 1782898523 · primary dns.4cun.com

✓ Serial 1782898523 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 1h, retry 3m, expire 14d, negative TTL 10m.
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Hidden master

The primary nameserver dns.4cun.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 admin@xdjxpt.com #25

The SOA RNAME admin.xdjxpt.com means admin@xdjxpt.com.
✓ Timestamp serial #26

The serial 1782898523 is a Unix timestamp (2026-07-01 09:35 UTC).

warn

Not signed

warn

2 records at the apex

Type	Value	TTL
SOA	dns.4cun.com. admin.xdjxpt.com. 1782898523 3600 180 1209600 600	593
A	120.26.205.75	146