e3721.com.cn - robtex.com
e3721.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:93bc🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:1cde🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.28.222Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.147.188🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | rosalie.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2639🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c239🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2239🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| A | 108.162.194.57🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| A | 162.159.38.57Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| A | 172.64.34.57🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosalie.ns.cloudflare.com | ||||||
| NS | sam.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b8d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c18d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:218d🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| A | 108.162.193.141🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| A | 172.64.33.141🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| A | 173.245.59.141🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sam.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.28.222, 172.67.147.188 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:93bc, 2606:4700:3035::6815:1cde | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=83, name=cloudflare-ech.com | ||||||
| SOA | rosalie.ns.cloudflare.comdns@cloudflare.com serial=2400373822 | ||||||
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.cnroot@cnnic.cn serial=2030510899 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSrosalie.ns.cloudflare.com2026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
●NSsam.ns.cloudflare.com2026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
●A104.21.28.2222026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
●A172.67.147.1882026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
●A2606:4700:3030::ac43:93bc2026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
●A2606:4700:3035::6815:1cde2026-04-06 → 2026-04-12 · 2 obs
● 2026-04-12 14:46:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| e3721.com.cn | sam.ns.cloudflare.com, rosalie.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.193.141
NS records: sam.ns.cloudflare.com, rosalie.ns.cloudflare.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3625ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.147.188, 104.21.28.222 |
| AAAA | 2 | 2606:4700:3030::ac43:93bc, 2606:4700:3035::6815:1cde |
| NS | 2 | rosalie.ns.cloudflare.com, sam.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | rosalie.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
e3721.com.cn points to four IP numbers: 2606:4700:3030::ac43:93bc, 2606:4700:3035::6815:1cde, 104.21.28.222 and 172.67.147.188.
Other host names including thalionexavro.com, kingfakeid.com, howtolaw.co, metsankalip.com and netharpoint.com share IP numbers with e3721.com.cn.
Name Servers
e3721.com.cn's delegation uses two name servers, rosalie.ns.cloudflare.com and sam.ns.cloudflare.com.
e3721.com.cn shares the same name server setup as other domains, for example nrdm.com.cn, xafzzx.com.cn, kcrworld.com.cn, qzsjj.com.cn and chuanqi-bug.com.cn.
e3721.com.cn at least partially shares name servers with other domains, including 57pgg.com, myfishtail.com, perens.org, phn.ru and newlaunches.com.
These name servers are often used together with steven.ns.cloudflare.com.
Host names with six IP numbers:
rosalie.ns.cloudflare.com points to: 2606:4700:50::a29f:2639, 2803:f800:50::6ca2:c239, 2a06:98c1:50::ac40:2239, 108.162.194.57, 162.159.38.57 and 172.64.34.57.
sam.ns.cloudflare.com points to: 2606:4700:58::adf5:3b8d, 2803:f800:50::6ca2:c18d, 2a06:98c1:50::ac40:218d, 108.162.193.141, 172.64.33.141 and 173.245.59.141.