`smartthinking.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bcb4^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:3c18^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.24^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.180^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`oswald.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bda^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`oswald.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`oswald.ns.cloudflare.com`
		A	108.162.193.218^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	172.64.33.218^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	173.245.59.218^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
NS	`violet.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`violet.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`violet.ns.cloudflare.com`
		A	108.162.192.237^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	172.64.32.237^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	173.245.58.237^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.60.24, 172.67.188.180
		IPv6 hints	2606:4700:3030::ac43:bcb4, 2606:4700:3031::6815:3c18
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOA	`oswald.ns.cloudflare.com`dns@cloudflare.com serial=2397658046

`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=2034661732

Same first word

smartthinking.org

smartthinking.cn

smartthinking.org.uk

smartthinking.nl

smartthinking.com.mx

smartthinking.es

smartthinking.com

smartthinking.co.uk

DNS History

9 records (6 active, 3 former)

○NSdns10.hichina.com2015-11-07 → 2018-10-26 · 4 obs

● 2015-11-07 00:17:56
● 2018-10-26 03:59:32
○ 2026-03-31 08:55:06
○ 2026-04-12 08:13:48

○NSdns9.hichina.com2015-11-07 → 2018-10-26 · 4 obs

● 2015-11-07 00:17:56
● 2018-10-26 03:59:32
○ 2026-03-31 08:55:06
○ 2026-04-12 08:13:48

●NSoswald.ns.cloudflare.com2026-03-31 → 2026-04-12 · 3 obs

○ 2018-10-26 03:59:32
● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

●NSviolet.ns.cloudflare.com2026-03-31 → 2026-04-12 · 3 obs

○ 2018-10-26 03:59:32
● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

○MXmx.ym.163.com2015-11-07 → 2018-10-26 · 4 obs

● 2015-11-07 00:17:56
● 2018-10-26 03:59:32
○ 2026-03-31 08:55:06
○ 2026-04-12 08:13:48

●A104.21.60.242026-03-31 → 2026-04-12 · 2 obs

● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

●A172.67.188.1802026-03-31 → 2026-04-12 · 2 obs

● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

●A2606:4700:3030::ac43:bcb42026-03-31 → 2026-04-12 · 2 obs

● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

●A2606:4700:3031::6815:3c182026-03-31 → 2026-04-12 · 2 obs

● 2026-03-31 08:55:06
● 2026-04-12 08:13:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
smartthinking.cn	oswald.ns.cloudflare.com, violet.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.237

NS records: oswald.ns.cloudflare.com, violet.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartthinking.cn (unsigned zone)

⏱️ Timing

Total: 872ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.188.180, 104.21.60.24`
AAAA	2	`2606:4700:3030::ac43:bcb4, 2606:4700:3031::6815:3c18`
NS	2	`oswald.ns.cloudflare.com, violet.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`oswald.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

smartthinking.cn resolves to four IPs: 2606:4700:3030::ac43:bcb4, 2606:4700:3031::6815:3c18, 104.21.60.24 and 172.67.188.180.

Other host names such as shuafutong.cn, faucethero.com, nockchain.org, 51hnjx.com and www.qhoster.bg share IP numbers with smartthinking.cn.

Name Servers

smartthinking.cn is delegated to two name servers: oswald.ns.cloudflare.com and violet.ns.cloudflare.com.

smartthinking.cn uses the same name server setup as other domains, including angmin.cn, gaobidavehicle.cn, brotheryao.cn, xadhhg.cn and unisunzy.cn.

At least part of the name servers for smartthinking.cn are shared with other domains, for instance mbqld.com.au, sky.net.pk, lavare.com.au, benknoot.com and lidnews.com.

These name servers are commonly used alongside the name servers reese.ns.cloudflare.com.

Host names with six IP numbers:

oswald.ns.cloudflare.com points to: 2606:4700:58::adf5:3bda, 2803:f800:50::6ca2:c1da, 2a06:98c1:50::ac40:21da, 108.162.193.218, 172.64.33.218 and 173.245.59.218.

violet.ns.cloudflare.com points to: 2606:4700:50::adf5:3aed, 2803:f800:50::6ca2:c0ed, 2a06:98c1:50::ac40:20ed, 108.162.192.237, 172.64.32.237 and 173.245.58.237.

smartthinking.cn - robtex.com