tdedu.cn - robtex.com
tdedu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:bb38🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:4c5🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.4.197Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.187.56🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | marge.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3abf🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0bf🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20bf🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| A | 108.162.192.191🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| A | 172.64.32.191🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| A | 173.245.58.191🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marge.ns.cloudflare.com | ||||||
| NS | margo.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c90🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c390🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2390🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| A | 108.162.195.144🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| A | 162.159.44.144Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| A | 172.64.35.144🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | margo.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.4.197, 172.67.187.56 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:bb38, 2606:4700:3036::6815:4c5 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com | ||||||
| SOA | marge.ns.cloudflare.comdns@cloudflare.com serial=2398967261 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034662101 | ||||||
Same first word
Similar names
dtedu.com |
dtedu.com.tw |
dudte.com |
dedut.com |
duted.com |
dudte.horse |
dtedu.net |
tuedd.com |
dtedu.com.cn |
edudt.cn |
edudt.net |
dtedu.org |
dudte.net |
dduet.com |
utdde.com |
tdude.co |
duetd.com |
udetd.com |
utded.com |
teddu.com |
eddtu.com |
DNS History
10 records (6 active, 4 former)
○NSdns1.sinonets.cn2015-08-07 → 2017-02-14 · 4 obs
● 2017-02-14 20:44:36
○ 2026-03-26 04:34:50
○ 2026-04-12 10:08:18
○NSdns2.sinonets.cn2015-08-07 → 2017-02-14 · 4 obs
● 2017-02-14 20:44:36
○ 2026-03-26 04:34:50
○ 2026-04-12 10:08:18
●NSmarge.ns.cloudflare.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
●NSmargo.ns.cloudflare.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
○MXmxdomain.qq.com2015-08-07 → 2017-02-14 · 4 obs
● 2017-02-14 20:44:36
○ 2026-03-26 04:34:50
○ 2026-04-12 10:08:18
●A104.21.4.1972026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
●A172.67.187.562026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
○A221.203.9.882015-08-07 → 2016-05-06 · 4 obs
● 2016-05-06 19:46:04
○ 2017-02-14 20:44:36
○ 2026-04-12 10:08:18
●A2606:4700:3030::ac43:bb382026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
●A2606:4700:3036::6815:4c52026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 04:34:50
● 2026-04-12 10:08:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, a.dns.cn, b.dns.cn, e.dns.cn... | - |
| tdedu.cn | marge.ns.cloudflare.com, margo.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.191
NS records: marge.ns.cloudflare.com, margo.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tdedu.cn (unsigned zone)
⏱️ Timing
Total: 502ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.187.56, 104.21.4.197 |
| AAAA | 2 | 2606:4700:3036::6815:4c5, 2606:4700:3030::ac43:bb38 |
| NS | 2 | marge.ns.cloudflare.com, margo.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | marge.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
tdedu.cn refers to four IP numbers: 2606:4700:3030::ac43:bb38, 2606:4700:3036::6815:4c5, 104.21.4.197 and 172.67.187.56.
Other host names, for instance www.easyfarma.it, docteuralphonse.fr, www.movieforums.com, cl3view.signalpathfinder.in.net and hnd-bus.hk share IP numbers with tdedu.cn.
Name Servers
tdedu.cn's delegation uses two name servers: marge.ns.cloudflare.com and margo.ns.cloudflare.com.
tdedu.cn uses the same name server setup as other domains, such as gilg.org, andylau.workers.dev, dmjy.net, czkjgz.com and osannp.com.
tdedu.cn at least partially shares name servers with other domains, including fn-soft.com, (0x616e616c).onl, gokarl.com, walraven.com and novator-grp.ru.
These name servers are commonly used with sneh.ns.cloudflare.com.
Host names with six IP numbers:
marge.ns.cloudflare.com points to 2606:4700:50::adf5:3abf, 2803:f800:50::6ca2:c0bf, 2a06:98c1:50::ac40:20bf, 108.162.192.191, 172.64.32.191 and 173.245.58.191.
margo.ns.cloudflare.com points to 2606:4700:58::a29f:2c90, 2803:f800:50::6ca2:c390, 2a06:98c1:50::ac40:2390, 108.162.195.144, 162.159.44.144 and 172.64.35.144.