algomaster.edu.vn - robtex.com
algomaster.edu.vn
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=2018564785 | ||||||
Subdomains
Same first word
algomaster.net |
algomaster.edu.vn |
algomaster.io |
Similar names
DNS History
12 records (12 active, 0 former)
●NSchin.ns.cloudflare.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●NSfelipe.ns.cloudflare.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXalt1.aspmx.l.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXalt2.aspmx.l.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXalt3.aspmx.l.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXalt4.aspmx.l.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXaspmx.l.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●MXsmtp.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●A104.21.70.702026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●A172.67.221.222026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●A2606:4700:3037::6815:46462026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
●A2606:4700:3037::ac43:dd162026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 11:13:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| algomaster.edu.vn | chin.ns.cloudflare.com, felipe.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.84
NS records: chin.ns.cloudflare.com, felipe.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for algomaster.edu.vn (unsigned zone)
⏱️ Timing
Total: 983ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.70.70, 172.67.221.22 |
| AAAA | 2 | 2606:4700:3037::6815:4646, 2606:4700:3037::ac43:dd16 |
| NS | 2 | chin.ns.cloudflare.com, felipe.ns.cloudflare.com |
| MX | 6 | aspmx.l.google.com (pri: 1), smtp.google.com (pri: 1)... |
| TXT | 2 | google-site-verification=7SVvzrmrt4TBZox, v=spf1 include:_spf.google.com ~all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | chin.ns.cloudflare.com dns.cloudflare.co |
Analysis
Hierarchy
algomaster.edu.vn is the parent of oj.algomaster.edu.vn and cdn.algomaster.edu.vn.
IP Addresses
algomaster.edu.vn resolves to four IPs: 2606:4700:3037::6815:4646, 2606:4700:3037::ac43:dd16, 104.21.70.70 and 172.67.221.22.
Other host names, for instance adsi.nl, tndesigners.com, www.boncukbugrada.com, dewi108kopi.site and silverbellmoosecompany.com share IP numbers with algomaster.edu.vn.
Name Servers
algomaster.edu.vn has two name servers: chin.ns.cloudflare.com and felipe.ns.cloudflare.com.
algomaster.edu.vn shares the same name server setup as other domains, for example mcac-naia.org, chrstngr.cm, josaapp.com, christianga.ro and joyofcreating.org.
algomaster.edu.vn shares some name servers with other domains, for example mattias-larsson-6a9.workers.dev, footplay.fun, all-bazar.cz, ixunifo.top and winoto.net.
These name servers are commonly used together with carlane.ns.cloudflare.com and autumn.ns.cloudflare.com.
Host names with six IP numbers: chin.ns.cloudflare.com points to: 2606:4700:50::adf5:3a54, 2803:f800:50::6ca2:c054, 2a06:98c1:50::ac40:2054, 108.162.192.84, 172.64.32.84 and 173.245.58.84; felipe.ns.cloudflare.com points to: 2606:4700:58::a29f:2c74, 2803:f800:50::6ca2:c374, 2a06:98c1:50::ac40:2374, 108.162.195.116, 162.159.44.116 and 172.64.35.116.
Mail Servers
Six mail servers handle algomaster.edu.vn: smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
algomaster.edu.vn shares some mail servers with other domains, at least partially; for instance song4you.jp, bluesinc.jp, hillsboroughpharmacync.com, netcloud.com and internetworkz.net.
these mail servers are often used together with the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with nine IP numbers
The host name smtp.google.com points to: 2607:f8b0:4004:c0b::1a, 2607:f8b0:4004:c0b::1b, 2607:f8b0:4004:c19::1a, 2607:f8b0:4004:c19::1b, 142.250.31.26, 142.250.31.27, 142.251.16.26, 142.251.111.26 and 142.251.111.27.
Host names with two IP numbers
The host name aspmx.l.google.com points to: 2607:f8b0:4023:c0b::1b and 142.250.141.26.
The host name alt1.aspmx.l.google.com points to: 2800:3f0:4003:c0f::1b and 108.177.123.26.
The host name alt2.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.26.
The host name alt3.aspmx.l.google.com points to: 2607:f8b0:4023:1015::1a and 172.253.135.27.
The host name alt4.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1b and 192.178.209.27.