hocdoc.vn - robtex.com
hocdoc.vn
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030743774 | ||||||
Subdomains
www.hocdoc.vn |
Same first word
hocdoc.vn |
Similar names
DNS History
4 records (4 active, 0 former)
●MXsmtp.google.com2026-05-01 → 2026-05-07 · 2 obs
● 2026-05-07 14:55:14
●A103.226.251.1002026-05-01 → 2026-05-07 · 2 obs
● 2026-05-07 14:55:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | d.dns-servers.vn, h.dns-servers.vn, a.dns-servers.vn, g.dns-servers.vn... | - |
| hocdoc.vn | ns2.matbao.vn, ns1.matbao.vn | 2 records |
✅ Authoritative Response
Server:103.138.89.11
NS records: ns2.matbao.vn, ns1.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hocdoc.vn (unsigned zone)
⏱️ Timing
Total: 1402ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.226.251.100 |
| NS | 2 | ns2.matbao.vn, ns1.matbao.vn |
| MX | 1 | SMTP.GOOGLE.COM (pri: 1) |
| TXT | 1 | google-site-verification=pAIN7rC-BWMwNZi |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.matbao.vn, ns2.matbao.vn)
Analysis
Hierarchy
hocdoc.vn is the parent of www.hocdoc.vn.
IP Addresses
hocdoc.vn resolves to a single IP address: 103.226.251.100.
Other host names, for instance thuvientructuyen.com, share IP numbers with hocdoc.vn.
Name Servers
hocdoc.vn's delegation uses two name servers, ns1.matbao.vn and ns2.matbao.vn.
hocdoc.vn shares the same name server setup as other domains, for example cuacuontot.com.vn, lixi.com.vn, investorpro.com.vn, moveobinhdinh.com.vn and tienlanh.vn.
hocdoc.vn at least partially shares name servers with other domains, including sondecal.com, newsaigonsoft.com, unixhouse.vn, mancuathaituan.com and tainangtrevietnam.vn.
these name servers are commonly used together with ns1.matbao.com, ns2.matbao.com and ns-bak.matbao.com.
Host names with two IPs:
ns1.matbao.vn points to: 13.250.228.99 and 103.110.128.60
ns2.matbao.vn points to: 35.198.203.127 and 103.138.89.11
Mail Servers
hocdoc.vn is handled by a single mail server, smtp.google.com.
hocdoc.vn shares its mail server setup with other domains, including gpsc92.fr, privylaw.com, sparklenclean.net, ottousta.com and kashf-i.com.
The mail servers for hocdoc.vn are shared with other domains, for instance cncmode.com, smbc-wevox.co.jp, cardanmashproject.com.ua, eqb.cz and ticketronic.net.
these mail servers are commonly used with 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.
The host name smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c06::1a, 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 2607:f8b0:4023:c0d::1a, 142.250.101.27, 142.250.141.26, 142.250.141.27, 142.251.2.26 and 142.251.2.27.