`zycsb.com`

DNSSEC	⚠️ Not signed
NS	`ns1.72dns.com` ⭐
		A	218.98.111.155^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns2.idc1.cn`
		A	183.253.57.223^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.41^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
SOA	`ns1.72dns.com`admin@72dns.com serial=1773636471

`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=1777244851

Same first word

zycsb.com

Similar names

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DNS History

9 records (4 active, 5 former)

●NSns1.72dns.com2015-08-18 → 2026-04-26 · 2 obs

● 2015-08-18 16:49:20
● 2026-04-26 23:17:14

○NSns2.72dns.com2015-08-18 → 2017-02-07 · 4 obs

● 2015-08-18 16:49:20
● 2017-02-07 13:42:02
○ 2018-09-01 17:27:20
○ 2026-04-26 23:17:14

●NSns2.idc1.cn2018-09-01 → 2026-04-26 · 3 obs

○ 2017-02-07 13:42:02
● 2018-09-01 17:27:20
● 2026-04-26 23:17:14

○MXmail.zycsb.com2015-08-18 → 2016-03-21 · 4 obs

● 2015-08-18 16:49:20
● 2016-03-21 21:37:28
○ 2017-02-07 13:42:02
○ 2026-04-26 23:17:14

●MXmxbiz1.qq.com2017-02-07 → 2026-04-26 · 3 obs

○ 2016-03-21 21:37:28
● 2017-02-07 13:42:02
● 2026-04-26 23:17:14

●MXmxbiz2.qq.com2017-02-07 → 2026-04-26 · 3 obs

○ 2016-03-21 21:37:28
● 2017-02-07 13:42:02
● 2026-04-26 23:17:14

○A103.251.238.2422017-02-07 → 2017-02-07 · 4 obs

○ 2016-03-21 21:37:28
● 2017-02-07 13:42:02
○ 2018-09-01 17:27:20
○ 2026-04-26 23:17:14

○A119.146.201.492015-08-18 → 2016-03-21 · 4 obs

● 2015-08-18 16:49:20
● 2016-03-21 21:37:28
○ 2017-02-07 13:42:02
○ 2026-04-26 23:17:14

○CNAMEcdn-url.72dns.net2018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 17:27:20
○ 2026-04-10 13:16:08
○ 2026-04-26 23:17:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net...	-
zycsb.com	ns1.72dns.com, ns2.idc1.cn	1 record

✅ Authoritative Response

Server:183.253.57.223

NS records: ns1.72dns.com, ns2.idc1.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zycsb.com (unsigned zone)

⏱️ Timing

Total: 1960ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.72dns.com, ns2.idc1.cn`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
SOA	1	`ns1.72dns.com admin.72dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.72dns.com)

Analysis

Name Servers

zycsb.com is delegated to two name servers: ns2.idc1.cn and ns1.72dns.com.

zycsb.com shares the same name server setup as other domains, for example gffpay.com, 6a666.com, gwjmt.com, yizi-edu.com and jntzsm.com.cn.

zycsb.com at least partially shares name servers with other domains, for example shbaiji.cn and rptec.cn.

Host names with two IP numbers: ns2.idc1.cn points to 183.253.57.223 and 211.99.99.41.

Host names with one IP number: ns1.72dns.com points to 218.98.111.155.

Mail Servers

zycsb.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

zycsb.com shares the same mail server setup as other domains, for instance imege.net, fses.cn, beahu.com, xminfinity.com and devarsi.com.

zycsb.com shares mail servers with other domains at least partially, including kggf.net, boyuansoft.com, goddata.com, scenestek.com and mail.sywk.info.

zycsb.com - robtex.com

zycsb.com

com