`class-statistics.cn`

DNSSEC	⚠️ Not signed
A	23.148.236.243^{AS3038123.148.236.0/24 JIMAMBA LLC}
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.onclouddns.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}
NS	`ns2.onclouddns.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}
SOA	`ns1.julydns.com`master@jmdns.com serial=1781883036

`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=2035093803

Same first word

class-statistics.cn

DNS History

5 records (5 active, 0 former)

●NSns1.julydns.com2026-07-14 → 2026-07-26 · 2 obs

● 2026-07-14 06:34:00
● 2026-07-26 18:56:10

●NSns1.onclouddns.com2026-07-14 → 2026-07-26 · 2 obs

● 2026-07-14 06:34:00
● 2026-07-26 18:56:10

●NSns2.julydns.com2026-07-14 → 2026-07-26 · 2 obs

● 2026-07-14 06:34:00
● 2026-07-26 18:56:10

●NSns2.onclouddns.com2026-07-14 → 2026-07-26 · 2 obs

● 2026-07-14 06:34:00
● 2026-07-26 18:56:10

●A23.148.236.2432026-07-14 → 2026-07-26 · 2 obs

● 2026-07-14 06:34:00
● 2026-07-26 18:56:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, c.dns.cn, e.dns.cn, a.dns.cn...	-
class-statistics.cn	ns1.onclouddns.com, ns2.onclouddns.com	-

✅ Authoritative Response

Server:162.159.27.251

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for class-statistics.cn (unsigned zone)

⏱️ Timing

Total: 418ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`23.148.236.243`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

Analysis

IP Addresses

class-statistics.cn resolves to one IP address: 23.148.236.243.

smart-star.cc, xyweb.xyz, reayg.cn and two other host names share IP numbers with class-statistics.cn.

Name Servers

The authoritative name servers for class-statistics.cn are ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com.

There is at least partial name server overlap between class-statistics.cn and other domains — ryjc.net, jm221.com, rzls.pro and two more among them.

These name servers frequently co-occur with the name servers ns1.judns.com and ns2.judns.com.

Four host names each point to one IP address: ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223, and ns1.onclouddns.com and ns2.onclouddns.com both point to 162.159.27.251.

ns1.julydns.com along with ns2.julydns.com each resolve to 162.159.48.223 IP addresses.

ns1.onclouddns.com along with ns2.onclouddns.com each resolve to 162.159.27.251 IP addresses.

class-statistics.cn - robtex.com