crypto.edu.vn - robtex.com
crypto.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:1989🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:8647🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.25.137Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.134.71🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | alan.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b39🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c139🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2139🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| A | 108.162.193.57🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| A | 172.64.33.57🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| A | 173.245.59.57🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alan.ns.cloudflare.com | ||||||
| NS | wren.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:268d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c28d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:228d🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| A | 108.162.194.141🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| A | 162.159.38.141Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| A | 172.64.34.141🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wren.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.25.137, 172.67.134.71 | ||||||
| IPv6 hints | 2606:4700:3033::6815:1989, 2606:4700:3033::ac43:8647 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=231, name=cloudflare-ech.com | ||||||
| SOA | alan.ns.cloudflare.comdns@cloudflare.com serial=2402532752 | ||||||
edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2018565189 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSalan.ns.cloudflare.com2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
●NSwren.ns.cloudflare.com2026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
●A104.21.25.1372026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
●A172.67.134.712026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
●A2606:4700:3033::6815:19892026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
●A2606:4700:3033::ac43:86472026-05-01 → 2026-05-11 · 2 obs
● 2026-05-11 18:13:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| crypto.edu.vn | alan.ns.cloudflare.com, wren.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.57
NS records: alan.ns.cloudflare.com, wren.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crypto.edu.vn (unsigned zone)
⏱️ Timing
Total: 957ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.25.137, 172.67.134.71 |
| AAAA | 2 | 2606:4700:3033::ac43:8647, 2606:4700:3033::6815:1989 |
| NS | 2 | alan.ns.cloudflare.com, wren.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | alan.ns.cloudflare.com dns.cloudflare.co |
Analysis
Hierarchy
crypto.edu.vn is parent of www.crypto.edu.vn and ftp.crypto.edu.vn.
IP Addresses
crypto.edu.vn resolves to four IP numbers: 2606:4700:3033::6815:1989, 2606:4700:3033::ac43:8647, 104.21.25.137 and 172.67.134.71.
other host names for instance www.ncyczp.com, falco.pro, pedial.com, muco-technologies.nl and rotapte7tiary.wiki share IP numbers with crypto.edu.vn.
Name Servers
crypto.edu.vn is delegated to two name servers: alan.ns.cloudflare.com and wren.ns.cloudflare.com.
crypto.edu.vn shares the same name server setup as other domains, for example spontex.fr, complem.com.br, ricequeenrecipes.com, smax.pro and spontex.es.
crypto.edu.vn at least partially shares name servers with other domains, for instance 112hub.com, unfortunet.co.uk, playmaryland.com, ask-a-chick.com and planbordshop.nl.
These name servers are commonly used with the name servers ignacio.ns.cloudflare.com.
Host names with six IP numbers:
alan.ns.cloudflare.com points to: 2606:4700:58::adf5:3b39, 2803:f800:50::6ca2:c139, 2a06:98c1:50::ac40:2139, 108.162.193.57, 172.64.33.57 and 173.245.59.57; wren.ns.cloudflare.com points to: 2606:4700:50::a29f:268d, 2803:f800:50::6ca2:c28d, 2a06:98c1:50::ac40:228d, 108.162.194.141, 162.159.38.141 and 172.64.34.141.