`cetcthz.com`

DNSSEC	⚠️ Not signed
A	220.180.239.145^{🇨🇳 CHINANET-BACKBONE220.180.0.0/16 China Telecom Network}
NS	`dns.bizcn.com` ⭐
NS	`ns7.cnmsn.net`
NS	`ns8.cnmsn.net`
MX	`mxw.263.net` ⭐
		A	143.110.227.31^{🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean}
		A	164.92.126.242^{🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean}
MX	`mx.263.net`⁽¹⁰⁾
		A	38.83.106.84^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx1.263.net`
		A	38.83.106.85^{🇺🇸 AS6319938.83.106.0/24 CS-34755}
			PTR	`us-mx2.263.net`
		A	143.110.227.31^{🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean}
		A	164.92.126.242^{🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean}
TXT	`v=spf1 include:spf.263.net -all`
SOA	`dns.bizcn.com`abuse@bizcn.com serial=62

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784090467

Same first word

cetcthz.cn

cetcthz.com

Similar names

ctztech.com

DNS History

7 records (6 active, 1 former)

●NSdns.bizcn.com2017-08-11 → 2026-07-15 · 5 obs

● 2017-08-11 08:22:56
● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-07-15 04:57:00
● 2026-07-15 04:57:04

●NSns7.cnmsn.net2026-06-04 → 2026-07-15 · 5 obs

○ 2017-08-11 08:22:56
● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-06-24 15:11:08
● 2026-07-15 04:57:04

●NSns8.cnmsn.net2026-06-04 → 2026-07-15 · 5 obs

○ 2017-08-11 08:22:56
● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-06-24 15:11:08
● 2026-07-15 04:57:04

●MXmx.263.net2026-06-04 → 2026-07-15 · 4 obs

● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-07-15 04:57:00
● 2026-07-15 04:57:04

●MXmxw.263.net2026-06-04 → 2026-07-15 · 4 obs

● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-07-15 04:57:00
● 2026-07-15 04:57:04

●A220.180.239.1452026-06-04 → 2026-07-15 · 5 obs

○ 2017-08-11 08:22:56
● 2026-06-04 12:14:12
○ 2026-06-23 11:48:06
● 2026-07-15 04:57:00
● 2026-07-15 04:57:04

○A61.191.49.1862017-08-11 → 2017-08-11 · 3 obs

● 2017-08-11 08:22:56
○ 2026-06-04 12:14:12
○ 2026-07-15 04:57:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net, h.gtld-servers.net...	-
cetcthz.com	ns7.cnmsn.net, ns8.cnmsn.net	-

✅ Authoritative Response

Server:61.240.129.147

NS records: ns7.cnmsn.net, ns8.cnmsn.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cetcthz.com (unsigned zone)

⏱️ Timing

Total: 3592ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.180.239.145`
NS	2	`ns7.cnmsn.net, ns8.cnmsn.net`
MX	2	`mx.263.net (pri: 10), mxw.263.net (pri: 5)`
TXT	1	`v=spf1 include:spf.263.net -all`
SOA	1	`dns.bizcn.com abuse.bizcn.com`

Analysis

IP Addresses

cetcthz.com resolves to one IP address: 220.180.239.145.

Name Servers

cetcthz.com carries NS records delegating to dns.bizcn.com, ns7.cnmsn.net and ns8.cnmsn.net.

There is at least partial name server overlap between cetcthz.com and other domains — xmgzc.cn, subeiflower.com, jd-rubber.com and two more among them.

These name servers regularly appear alongside ns1.dns.com.cn, ns2.dns.com.cn, dns.cnmsn.net and 6 other name servers in NS record sets.

Mail Servers

Mail for cetcthz.com is handled by two mail servers — mx.263.net and mxw.263.net.

cetcthz.com uses an identical mail server configuration to several other domains — among them zhengyechina.com, yjdfilms.com, hans-tec.com and two more.

cetcthz.com uses mail servers that are also used by other domains, including tuxing2010.com, hidrostal.com.cn and ycfj.com.

Hosts that point to four IP numbers:

mx.263.net resolves to four IP addresses — 38.83.106.84, 38.83.106.85, 143.110.227.31 and 164.92.126.242.

Hostnames that resolve to two IP addresses:

mxw.263.net resolves to two addresses: 143.110.227.31 and 164.92.126.242.

mx.263.net along with mxw.263.net each resolve to 143.110.227.31 IP addresses.

mx.263.net along with mxw.263.net each resolve to 164.92.126.242 IP addresses.

cetcthz.com - robtex.com

cetcthz.com

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