softech.edu.vn - dns.ninja
softech.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=2018580403 | ||||||
Subdomains
toeic.softech.edu.vn |
devtest.softech.edu.vn |
koala.softech.edu.vn |
ssms-api.softech.edu.vn |
portal.softech.edu.vn |
online.softech.edu.vn |
myai.softech.edu.vn |
quizcity-tristar-api.softech.edu.vn |
teacher.softech.edu.vn |
demo.softech.edu.vn |
teachingjobs.softech.edu.vn |
www.softech.edu.vn |
Same first word
Similar names
DNS History
9 records (8 active, 1 former)
●MXalt1.aspmx.l.google.com2018-05-17 → 2026-07-15 · 7 obs
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
●MXalt2.aspmx.l.google.com2018-05-17 → 2026-07-15 · 7 obs
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
●MXaspmx.l.google.com2018-05-17 → 2026-07-15 · 7 obs
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
●MXaspmx3.googlemail.com2018-05-17 → 2026-07-15 · 7 obs
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
●MXaspmx4.googlemail.com2018-05-17 → 2026-07-15 · 7 obs
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
○A104.155.204.822018-05-17 → 2018-05-17 · 3 obs
○ 2026-02-17 07:47:02
○ 2026-07-15 15:19:04
●A203.171.28.82026-02-17 → 2026-07-15 · 8 obs
● 2026-02-17 07:47:02
● 2026-04-30 19:38:00
○ 2026-04-30 22:35:04
● 2026-04-30 23:43:36
○ 2026-07-08 15:05:08
● 2026-07-09 21:35:54
● 2026-07-15 15:19:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | h.dns-servers.vn, e.dns-servers.vn, a.dns-servers.vn, f.dns-servers.vn... | 16 records |
| softech.edu.vn | ns3.vdc3.vn, ns4.vdc3.vn | - |
✅ Authoritative Response
Server:14.225.197.109
NS records: ns3.vdc3.vn, ns4.vdc3.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for softech.edu.vn (unsigned zone)
⏱️ Timing
Total: 2223ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.171.28.8 |
| NS | 2 | ns4.vdc3.vn, ns3.vdc3.vn |
| MX | 5 | aspmx3.googlemail.com (pri: 10), aspmx.l.google.com (pri: 10)... |
| TXT | 7 | amazonses:8mX6HOMm0pUV7bGoOJrP1cXRGRRpmk, amazonses:TUxcVBC6e1NbjKGxnDxyCxf6BpofzD... |
| SOA | 1 | ns3.vdc3.vn vdconline.tld |
📌 Glue Records Collected
Total: 16
In-bailiwick: 16 (h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn...)
Analysis
Hierarchy
toeic.softech.edu.vn, devtest.softech.edu.vn, koala.softech.edu.vn, ssms-api.softech.edu.vn, portal.softech.edu.vn and a few other host names are all children of softech.edu.vn.
IP Addresses
softech.edu.vn resolves to one IP address: 203.171.28.8.
olympicenglish.vn, softech.vn, teachingjobs.softech.edu.vn and two other host names share IP numbers with softech.edu.vn.
Name Servers
The NS records for softech.edu.vn delegate to ns3.vdc3.vn and ns4.vdc3.vn.
softech.edu.vn uses the same name servers as several other domains — among them blueoceantravel.com.vn, chp.vn, ngoaivuquangtri.gov.vn and two more.
The name servers of softech.edu.vn overlap at least partially with those of other domains — among them ued.edu.vn, ledunghotel.com.vn, mnhoatien2-hoavang.edu.vn and two more.
These name servers commonly appear alongside the name servers ns1.vdconline.vn and ns2.vdconline.vn.
Both ns3.vdc3.vn and ns4.vdc3.vn have a single IP address each — ns3.vdc3.vn resolves to 14.225.41.137 while ns4.vdc3.vn resolves to 14.225.197.109.
Mail Servers
Five mail servers handle softech.edu.vn: aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx.l.google.com and two others.
softech.edu.vn has at least partial mail server overlap with other domains such as er-pro.com, ns500731.ns500671.ns500754.ns500731.ns500742.ns500742.ns500688.ns500688.ns500704.ns500291.ns500671.ns500666.ns500153.tenderladiesbz.com, ns500731.ns500671.ns500742.ns500704.ns500705.ns500678.ns500649.ns500649.ns500649.ns500291.ns500131.lustychickser.com and two more.
These mail servers commonly co-occur with mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.
Hostnames that resolve to two IP addresses:
The A records for aspmx3.googlemail.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.
The A records for aspmx4.googlemail.com return 192.178.223.27 and 2a00:1450:4009:c0f::1a.
The A records for aspmx.l.google.com return 142.251.163.26 and 2607:f8b0:4004:c1f::1b.
The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 2a00:1450:400b:c02::1b IP addresses.