tech12h.com - robtex.com
tech12h.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.1.237.207🇻🇳 SUPERDATA103.1.237.0/24 -VN | ||||||
| PTR | mx237207.superdata.vn | ||||||
| NS | nsbak.dotvndns.com ⭐ | ||||||
| A | 2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | nsbak.dotvndns.com | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| NS | ns1.pavietnam.vn | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns2.pavietnam.vn | ||||||
| A | 2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns2.dotvndns.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| NS | nsbak.pavietnam.net | ||||||
| A | 2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | nsbak.dotvndns.com | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| MX | mail9092.maychuemail.com ⭐ | ||||||
| A | 112.213.90.92🇻🇳 SUPERDATA112.213.90.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | mail9092.maychuemail.com | ||||||
| MX | mx9092.maychuemail.net(10) | ||||||
| A | 112.213.90.92🇻🇳 SUPERDATA112.213.90.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | mail9092.maychuemail.com | ||||||
| TXT | v=spf1 include:spf.maychuemail.com ~all | ||||||
| SOA | nsbak.dotvndns.comhostmaster@tech12h.com 2026-03-19 #38 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778386166 | ||||||
rank #431508 in the tld
📈 Tranco rank: #96,846
Subdomains
mail.tech12h.com |
Same first word
tech12h.com |
DNS History
12 records (7 active, 5 former)
○NSns1.dotvndns.vn2015-08-20 → 2016-08-12 · 4 obs
● 2016-08-12 11:48:26
○ 2026-02-23 11:09:12
○ 2026-05-10 04:09:52
●NSns1.pavietnam.vn2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
○NSns2.dotvndns.vn2015-08-20 → 2016-08-12 · 4 obs
● 2016-08-12 11:48:26
○ 2026-02-23 11:09:12
○ 2026-05-10 04:09:52
●NSns2.pavietnam.vn2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
●NSnsbak.dotvndns.com2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
●NSnsbak.pavietnam.net2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
○MXmail.tech12h.com2015-08-20 → 2016-08-12 · 4 obs
● 2016-08-12 11:48:26
○ 2026-02-23 11:09:12
○ 2026-05-10 04:09:52
●MXmail9092.maychuemail.com2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
●MXmx9092.maychuemail.net2026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
●A103.1.237.2072026-02-23 → 2026-05-10 · 3 obs
● 2026-02-23 11:09:12
● 2026-05-10 04:09:52
○A103.48.83.522016-01-08 → 2016-08-12 · 5 obs
● 2016-01-08 08:03:20
● 2016-08-12 11:48:26
○ 2026-02-23 11:09:12
○ 2026-05-10 04:09:52
○A42.112.16.1402015-08-20 → 2015-10-24 · 4 obs
● 2015-10-24 17:40:38
○ 2016-01-08 08:03:20
○ 2026-05-10 04:09:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| tech12h.com | nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn | - |
✅ Authoritative Response
Server:222.255.121.247
NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tech12h.com (unsigned zone)
⏱️ Timing
Total: 1727ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.1.237.207 |
| NS | 3 | ns2.pavietnam.vn, ns1.pavietnam.vn... |
| MX | 2 | mx9092.maychuemail.net (pri: 10), mail9092.maychuemail.com (pri: 5) |
| TXT | 1 | v=spf1 include:spf.maychuemail.com ~all |
| SOA | 1 | nsbak.dotvndns.com hostmaster.tech12h.co |
Analysis
Hierarchy
tech12h.com is the parent of mail.tech12h.com.
IP Addresses
tech12h.com points to a single IP number: 103.1.237.207.
Other host names, for instance fidutech.vn, share IP numbers with tech12h.com.
Name Servers
tech12h.com is delegated to four name servers: nsbak.dotvndns.com, nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.
tech12h.com at least partially shares name servers with other domains, for instance idconline.vn, thcsvinhthanhtrungangiang.edu.vn, khonggianviet.us, dulichkhampha24.com and camnangchiase.com.
These name servers are commonly used with ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn and nsbak.pavietnam.vn.
Host names with two IP numbers
nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22
nsbak.pavietnam.net points to 2406:9c80::9000:302 and 112.213.89.22
ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3
ns2.pavietnam.vn points to 2406:9c80::9000:111 and 222.255.121.247
Host names pointing to 2406:9c80::9000:302: nsbak.dotvndns.com and nsbak.pavietnam.net
Host names pointing to 112.213.89.22: nsbak.dotvndns.com and nsbak.pavietnam.net
Mail Servers
tech12h.com is handled by two mail servers: mail9092.maychuemail.com and mx9092.maychuemail.net.
tech12h.com shares the same mail server setup as other domains, for instance thamesuk.edu.vn, icworld.vn, tannghetin.com.vn, dlmeco.vn and bksolutions.vn.
tech12h.com shares mail servers with other domains at least partially, including vics.org.vn, anhoaphat.vn, aqtech.edu.vn, saigonphutho.vn and weplus.vn.
Host names with a single IP number:
mail9092.maychuemail.com points to 112.213.90.92 and mx9092.maychuemail.net points to 112.213.90.92.
Host names that point to 112.213.90.92: mail9092.maychuemail.com and mx9092.maychuemail.net.