thinkingclass.cn - robtex.com
thinkingclass.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:d56b🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:2af0🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.42.240Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.213.107🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ajay.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b38🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c138🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2138🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 108.162.193.56🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 172.64.33.56🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 173.245.59.56🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| NS | olivia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26dd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2dd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22dd🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 108.162.194.221🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 162.159.38.221Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 172.64.34.221🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.42.240, 172.67.213.107 | ||||||
| IPv6 | 2606:4700:3033::ac43:d56b, 2606:4700:3035::6815:2af0 | ||||||
| SOA | ajay.ns.cloudflare.comdns@cloudflare.com serial=2400055266 | ||||||
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.cnroot@cnnic.cn serial=2034606326 | ||||||
Subdomains
www.thinkingclass.cn |
Same first word
thinkingclass.com.cn |
thinkingclass.cn |
DNS History
6 records (6 active, 0 former)
●NSajay.ns.cloudflare.com2026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
●NSolivia.ns.cloudflare.com2026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
●A104.21.42.2402026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
●A172.67.213.1072026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
●A2606:4700:3033::ac43:d56b2026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
●A2606:4700:3035::6815:2af02026-03-27 → 2026-03-29 · 2 obs
● 2026-03-29 14:15:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, e.dns.cn, a.dns.cn... | - |
| thinkingclass.cn | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.221
NS records: ajay.ns.cloudflare.com, olivia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for thinkingclass.cn (unsigned zone)
⏱️ Timing
Total: 507ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.213.107, 104.21.42.240 |
| AAAA | 2 | 2606:4700:3033::ac43:d56b, 2606:4700:3035::6815:2af0 |
| NS | 2 | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ajay.ns.cloudflare.com dns.cloudflare.co |
Analysis
Hierarchy
The parent of www.thinkingclass.cn is thinkingclass.cn.
IP Addresses
thinkingclass.cn maps to four IP numbers: 2606:4700:3033::ac43:d56b, 2606:4700:3035::6815:2af0, 104.21.42.240 and 172.67.213.107.
Other host names such as www.c-plusplus.org, www.kamisama.com.br, kelsacn.com, office365.officelive11.workers.dev and itzone.hu share IPs with thinkingclass.cn.
Name Servers
Two name servers ajay.ns.cloudflare.com and olivia.ns.cloudflare.com handle the delegation for thinkingclass.cn.
thinkingclass.cn shares the same name server setup as other domains, for example e9176.cn, pawfs.cn, maixb.cn, xzqzx.cn and sitaner.cn.
thinkingclass.cn at least partially shares name servers with other domains, for example cbwhatseopp.com, jefferies.eu, wha-web.com, buddies.uk.net and mediaxchange.mobi.
These name servers are often used together with peyton.ns.cloudflare.com and paityn.ns.cloudflare.com.
Host names with six IP numbers:
ajay.ns.cloudflare.com points to 2606:4700:58::adf5:3b38, 2803:f800:50::6ca2:c138, 2a06:98c1:50::ac40:2138, 108.162.193.56, 172.64.33.56 and 173.245.59.56.
olivia.ns.cloudflare.com points to 2606:4700:50::a29f:26dd, 2803:f800:50::6ca2:c2dd, 2a06:98c1:50::ac40:22dd, 108.162.194.221, 162.159.38.221 and 172.64.34.221.