`sz-sd.net`

DNSSEC	⚠️ Not signed
A	121.127.234.167^{🇭🇰 CTGSERVERLIMITED-AS-AP121.127.234.0/24 Sun Network (Hong Kong) Limited Flat 13, 4/F Trans Asia Centre 18 Kin Hong Street, Kwai Chung}
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	`dns6.4cun.com` ⚠️ 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}
SOA	`dns.4cun.com`admin@sz-sd.net serial=1772529391

`net`

	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=1774443707

Subdomains

www.sz-sd.net

Same first word

sz-sd.com

sz-sd.net

DNS History

7 records (4 active, 3 former)

●NSdns.4cun.com2015-07-17 → 2026-03-25 · 2 obs

● 2015-07-17 13:22:00
● 2026-03-25 13:25:32

●NSdns5.4cun.com2026-02-26 → 2026-03-25 · 3 obs

○ 2015-07-17 13:22:00
● 2026-02-26 01:44:56
● 2026-03-25 13:25:32

●NSdns6.4cun.com2026-02-26 → 2026-03-25 · 3 obs

○ 2015-07-17 13:22:00
● 2026-02-26 01:44:56
● 2026-03-25 13:25:32

○A103.61.223.32015-11-19 → 2016-04-26 · 5 obs

○ 2015-07-17 13:22:00
● 2015-11-19 05:21:26
● 2016-04-26 01:16:36
○ 2026-02-26 01:44:56
○ 2026-03-25 13:25:32

●A121.127.234.1672026-02-26 → 2026-03-25 · 3 obs

○ 2016-04-26 01:16:36
● 2026-02-26 01:44:56
● 2026-03-25 13:25:32

○A180.178.32.2462015-07-17 → 2015-07-17 · 3 obs

● 2015-07-17 13:22:00
○ 2026-02-26 01:44:56
○ 2026-03-25 13:25:32

○CNAMEdnshk133.idc-icp.com2015-07-17 → 2016-04-26 · 4 obs

● 2015-07-17 13:22:00
● 2016-04-26 01:16:36
○ 2017-04-18 18:57:58
○ 2026-03-25 13:25:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sz-sd.net	dns5.4cun.com, dns6.4cun.com	-

✅ Authoritative Response

Server:61.172.183.74

NS records: dns5.4cun.com, dns6.4cun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sz-sd.net (unsigned zone)

⏱️ Timing

Total: 4205ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.127.234.167`
SOA	1	`dns.4cun.com admin.sz-sd.net`

Analysis

Hierarchy

sz-sd.net is the parent of www.sz-sd.net.

IP Addresses

sz-sd.net resolves to one IP number: 121.127.234.167.

Other host names, for instance www.sz-sd.net, share IP numbers with sz-sd.net.

Name Servers

sz-sd.net is delegated to three name servers dns5.4cun.com, dns6.4cun.com and dns.4cun.com.

sz-sd.net at least partially shares name servers with other domains, for instance 7pv.cn, chinaoat.com, hjojo.net, 93jx.net and 52895.com.

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

Host names with two IP numbers:

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

dns6.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74.

Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns5.4cun.com and dns6.4cun.com.

sz-sd.net - robtex.com

sz-sd.net

net