`syscoolidc.com.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:1f93^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:b1ca^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.147^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.177.202^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dion.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dion.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dion.ns.cloudflare.com`
		A	108.162.193.156^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	172.64.33.156^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
		A	173.245.59.156^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dion.ns.cloudflare.com`
NS	`josephine.ns.cloudflare.com`
		A	2606:4700:50::a29f:2640^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c240^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`josephine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2240^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`josephine.ns.cloudflare.com`
		A	108.162.194.64^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	162.159.38.64^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	172.64.34.64^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.31.147, 172.67.177.202
		IPv6 hints	2606:4700:3032::6815:1f93, 2606:4700:3036::ac43:b1ca
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=52, name=cloudflare-ech.com
SOA	`dion.ns.cloudflare.com`dns@cloudflare.com serial=2402251022

`com.cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.cn` ⚠️ Not in parent delegation
	NS	`c.dns.cn` ⚠️ Not in parent delegation
	NS	`cns.cernet.net` ⚠️ Not in parent delegation
	NS	`d.dns.cn` ⚠️ Not in parent delegation
	NS	`e.dns.cn` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2030532168

WOT: NOT_SAFE (20/100)

Same first word

syscoolidc.com.cn

DNS History

6 records (6 active, 0 former)

●NSdion.ns.cloudflare.com2026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

●NSjosephine.ns.cloudflare.com2026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

●A104.21.31.1472026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

●A172.67.177.2022026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

●A2606:4700:3032::6815:1f932026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

●A2606:4700:3036::ac43:b1ca2026-04-18 → 2026-04-24 · 2 obs

● 2026-04-18 12:31:44
● 2026-04-24 11:21:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
syscoolidc.com.cn	dion.ns.cloudflare.com, josephine.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.156

NS records: dion.ns.cloudflare.com, josephine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for syscoolidc.com.cn (unsigned zone)

⏱️ Timing

Total: 853ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.31.147, 172.67.177.202`
AAAA	2	`2606:4700:3032::6815:1f93, 2606:4700:3036::ac43:b1ca`
NS	2	`dion.ns.cloudflare.com, josephine.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dion.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

syscoolidc.com.cn resolves to four IP numbers: 2606:4700:3032::6815:1f93, 2606:4700:3036::ac43:b1ca, 104.21.31.147 and 172.67.177.202.

Other host names such as freshupdates.us, webjoinville.com, surgawinexpress.com, p-shot.ca and monsterlab.io share IPs with syscoolidc.com.cn.

Name Servers

syscoolidc.com.cn is delegated to two name servers: dion.ns.cloudflare.com and josephine.ns.cloudflare.com.

syscoolidc.com.cn shares the same name server setup as baobaodiandang.com, shangguwenhua.com, f8ym.com, ytztst.com and jingshuishenliu.com.

syscoolidc.com.cn at least partially shares name servers with other domains, for instance riobet-rio24.casino, armadio.pro, hundehof.org, xameixia.com and orindalodge.org.

These name servers are commonly used with ned.ns.cloudflare.com and bella.ns.cloudflare.com.

Host names with six IP numbers:

dion.ns.cloudflare.com points to 2606:4700:58::adf5:3b9c, 2803:f800:50::6ca2:c19c, 2a06:98c1:50::ac40:219c, 108.162.193.156, 172.64.33.156 and 173.245.59.156.

josephine.ns.cloudflare.com points to 2606:4700:50::a29f:2640, 2803:f800:50::6ca2:c240, 2a06:98c1:50::ac40:2240, 108.162.194.64, 162.159.38.64 and 172.64.34.64.

syscoolidc.com.cn - robtex.com