`zisum.com`

DNSSEC	⚠️ Not signed
NS	`dns5.4cun.com` ⭐
		A	2408:4005:3dc:af00:a6be:339e:a1a0:ceb7^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	219.138.102.210^{🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang}
NS	`dns.4cun.com` ⚠️ Not in zone NS records
NS	`dns6.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:ceb7^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	61.172.183.74^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
MX	`mxdomain.qq.com` ⭐
SOA	`dns.4cun.com`admin@zisum.com serial=1772528640

`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=1774553297

Same first word

zisum.com

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DNS History

6 records (4 active, 2 former)

●NSdns.4cun.com2015-05-29 → 2026-03-26 · 2 obs

● 2015-05-29 22:13:52
● 2026-03-26 19:34:00

●NSdns5.4cun.com2026-03-26 → 2026-03-26 · 3 obs

○ 2015-05-29 22:13:52
● 2026-03-26 06:35:12
● 2026-03-26 19:34:00

●NSdns6.51dns.top2026-03-26 → 2026-03-26 · 3 obs

○ 2015-05-29 22:13:52
● 2026-03-26 06:35:12
● 2026-03-26 19:34:00

●MXmxdomain.qq.com2015-05-29 → 2026-03-26 · 2 obs

● 2015-05-29 22:13:52
● 2026-03-26 19:34:00

○A222.73.44.1772017-01-08 → 2017-01-08 · 4 obs

○ 2016-04-26 05:30:42
● 2017-01-08 17:29:42
○ 2018-08-04 06:10:02
○ 2026-03-26 19:34:00

○A222.73.44.1782015-05-29 → 2016-04-26 · 4 obs

● 2015-05-29 22:13:52
● 2016-04-26 05:30:42
○ 2017-01-08 17:29:42
○ 2026-03-26 19:34:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net...	-
zisum.com	dns5.4cun.com, dns6.51dns.top	2 records

✅ Authoritative Response

Server:219.138.102.210

NS records: dns5.4cun.com, dns6.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zisum.com (unsigned zone)

⏱️ Timing

Total: 1159ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`mxdomain.qq.com (pri: 10)`
SOA	1	`dns.4cun.com admin.zisum.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns5.4cun.com, dns5.4cun.com)

Analysis

Name Servers

zisum.com is delegated to three name servers: dns5.4cun.com, dns.4cun.com and dns6.51dns.top.

zisum.com partially shares name servers with other domains; examples include juscon.cn, leaderjoy.com, lunwenw.com, 92634.com and sinoric.com.

These name servers are commonly used alongside dns3.4cun.com, dns4.51dns.top, dns6.4cun.com, dns7.4cun.com, dns2.51dns.top, dns8.51dns.top, dns1.4cun.com, ns1.4cun.com, ns3.4cun.com and ns4.4cun.com.

Host names with two IP numbers:

The host name dns5.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210.

The host name dns6.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74.

Host names that point to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns5.4cun.com and dns6.51dns.top.

Mail Servers

zisum.com is handled by a single mail server, mxdomain.qq.com.

zisum.com has the same mail server setup as other domains, including sjjia.com, shomlin.com, 17jie.com, xyuyao.com and edu123.net.

zisum.com shares some mail servers with other domains, at least partially, such as macat.vip, enjoylifecreative.com, micfans.com, jxknwxx.com and e719.cn.

These mail servers are often used together with mxbiz1.qq.com and mxbiz2.qq.com.

zisum.com - robtex.com

zisum.com

com