`91is.cn`

DNSSEC	⚠️ Not signed
A	154.222.230.234^{🇸🇨 AS400619154.222.224.0/20 Arosscloud Inc}
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1757904189

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034707010

Same first word

91is.com

91is.cn

Similar names

si91.cn

19is.com

91si.com

i19s.com

DNS History

12 records (5 active, 7 former)

○NSdns10.hichina.com2016-01-01 → 2017-12-15 · 4 obs

● 2016-01-01 12:26:02
● 2017-12-15 06:36:48
○ 2026-04-20 23:42:46
○ 2026-04-24 12:00:08

○NSdns9.hichina.com2016-01-01 → 2017-12-15 · 4 obs

● 2016-01-01 12:26:02
● 2017-12-15 06:36:48
○ 2026-04-20 23:42:46
○ 2026-04-24 12:00:08

●NSns1.judns.com2026-04-20 → 2026-04-24 · 3 obs

○ 2017-12-15 06:36:48
● 2026-04-20 23:42:46
● 2026-04-24 12:00:08

●NSns1.julydns.com2026-04-20 → 2026-04-24 · 3 obs

○ 2017-12-15 06:36:48
● 2026-04-20 23:42:46
● 2026-04-24 12:00:08

●NSns2.judns.com2026-04-20 → 2026-04-24 · 3 obs

○ 2017-12-15 06:36:48
● 2026-04-20 23:42:46
● 2026-04-24 12:00:08

●NSns2.julydns.com2026-04-20 → 2026-04-24 · 3 obs

○ 2017-12-15 06:36:48
● 2026-04-20 23:42:46
● 2026-04-24 12:00:08

○A122.114.108.382016-04-04 → 2016-04-04 · 4 obs

○ 2016-01-01 12:26:02
● 2016-04-04 07:48:20
○ 2016-11-29 21:26:54
○ 2026-04-24 12:00:08

○A122.114.108.412016-01-01 → 2016-01-01 · 3 obs

● 2016-01-01 12:26:02
○ 2016-04-04 07:48:20
○ 2026-04-24 12:00:08

○A122.114.152.902016-11-29 → 2016-11-29 · 4 obs

○ 2016-04-04 07:48:20
● 2016-11-29 21:26:54
○ 2026-04-20 23:42:46
○ 2026-04-24 12:00:08

●A154.222.230.2342026-04-20 → 2026-04-24 · 3 obs

○ 2016-11-29 21:26:54
● 2026-04-20 23:42:46
● 2026-04-24 12:00:08

○CNAME133268.vhost176.cloudvhost.net2016-04-04 → 2016-04-04 · 3 obs

● 2016-04-04 07:48:20
○ 2016-11-29 21:26:54
○ 2026-04-24 12:00:08

○CNAME133268.vhost176.cloudvhost.top2016-11-29 → 2017-12-15 · 5 obs

○ 2016-04-04 07:48:20
● 2016-11-29 21:26:54
● 2017-12-15 06:36:48
○ 2026-04-20 23:42:46
○ 2026-04-24 12:00:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
91is.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 91is.cn (unsigned zone)

⏱️ Timing

Total: 3419ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.222.230.234`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

Analysis

IP Addresses

91is.cn points to a single IP address: 154.222.230.234.

Other host names such as lingluzhe.com.cn, szershou.cn and eruipu.cn share IP numbers with 91is.cn.

Name Servers

91is.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

At least part of the name servers for 91is.cn are shared with other domains, for instance xing-tai.cn, kmsvip.com, yi(0x73686974)e.cn, xmksxylw.cn and 115524.cn.