tech4school.com - robtex.com
tech4school.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.151.166.123🇹🇭 ITSC-AS203.151.160.0/20 Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang | ||||||
| PTR | mail.tech4all.us | ||||||
| NS | ns53.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21a2::1b🇺🇸 GODADDY-DNS2603:5:21a0::/44 | ||||||
| PTR | ns53.domaincontrol.com | ||||||
| A | 97.74.106.27🇺🇸 GODADDY-DNS97.74.106.0/23 | ||||||
| PTR | ns53.domaincontrol.com | ||||||
| NS | ns54.domaincontrol.com | ||||||
| A | 2603:5:22a2::1b🇺🇸 GODADDY-DNS2603:5:22a0::/44 | ||||||
| PTR | ns54.domaincontrol.com | ||||||
| A | 173.201.74.27🇺🇸 GODADDY-DNS173.201.74.0/23 | ||||||
| PTR | ns54.domaincontrol.com | ||||||
| MX | tech4school.com ⭐ | ||||||
| A | 203.151.166.123🇹🇭 ITSC-AS203.151.160.0/20 Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang | ||||||
| PTR | mail.tech4all.us | ||||||
| MX | mail.tech4school.com(20) | ||||||
| A | 203.151.166.123🇹🇭 ITSC-AS203.151.160.0/20 Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang | ||||||
| PTR | mail.tech4all.us | ||||||
| TXT | google-site-verification=uShxF_cfnSHt3KhYyqD38hRrahg9G7f7UH5vzh7gCAc | ||||||
| TXT | v=spf1 a mx ip4:203.151.166.123 include:_spf.google.com include:spfd.protecti... | ||||||
| SOA | ns53.domaincontrol.comdns@jomax.net 2026-03-29 #1 | ||||||
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=1775412477 | ||||||
MX for
tech4school.com |
Previously MX for
mail.tech4school.com |
Subdomains
mail.tech4school.com |
Same first word
tech4school.com |
DNS History
6 records (5 active, 1 former)
●NSns53.domaincontrol.com2015-08-03 → 2026-04-05 · 2 obs
● 2026-04-05 18:34:56
●NSns54.domaincontrol.com2015-08-03 → 2026-04-05 · 2 obs
● 2026-04-05 18:34:56
●MXmail.tech4school.com2015-08-03 → 2026-04-05 · 2 obs
● 2026-04-05 18:34:56
●MXtech4school.com2015-08-03 → 2026-04-05 · 2 obs
● 2026-04-05 18:34:56
○A202.183.166.42015-08-03 → 2017-03-17 · 4 obs
● 2017-03-17 18:11:50
○ 2026-02-20 20:21:36
○ 2026-04-05 18:34:56
●A203.151.166.1232026-02-20 → 2026-04-05 · 3 obs
● 2026-02-20 20:21:36
● 2026-04-05 18:34:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net... | - |
| tech4school.com | ns53.domaincontrol.com, ns54.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.106.27
NS records: ns53.domaincontrol.com, ns54.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tech4school.com (unsigned zone)
⏱️ Timing
Total: 167ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.151.166.123 |
| NS | 2 | ns53.domaincontrol.com, ns54.domaincontrol.com |
| MX | 2 | mail.tech4school.com (pri: 20), tech4school.com (pri: 10) |
| TXT | 2 | google-site-verification=uShxF_cfnSHt3Kh, v=spf1 a mx ip4:203.151.166.123 include: |
| SOA | 1 | ns53.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns53.domaincontrol.com, ns53.domaincontrol.com, ns54.domaincontrol.com...)
Analysis
Hierarchy
tech4school.com is the parent of mail.tech4school.com.
Mail Server Role
For tech4school.com, the mail server is tech4school.com.
mail.tech4school.com is a mail server commonly used with tech4school.com.
IP Addresses
tech4school.com resolves to one IP number: 203.151.166.123.
other host names including mail.tech4all.us, mail.tech4work.com, mail.inspiretechnology.net, pathela.com and mail.tech4school.com share IP numbers with tech4school.com.
Name Servers
tech4school.com is delegated to two name servers ns53.domaincontrol.com and ns54.domaincontrol.com.
tech4school.com shares the same name server setup as other domains, for instance espaniashare.org, my-id-card.com, floridatrustplanning.com, smart-solutions.technology and thaifoodboston.com.
Host names with two IP numbers:
The host name ns53.domaincontrol.com points to 2603:5:21a2::1b and 97.74.106.27; the host name ns54.domaincontrol.com points to 2603:5:22a2::1b and 173.201.74.27.
Mail Servers
tech4school.com is handled by two mail servers: tech4school.com and mail.tech4school.com.
Host names with a single IP:
tech4school.com points to 203.151.166.123.
mail.tech4school.com points to 203.151.166.123.
Host names pointing to 203.151.166.123: tech4school.com and mail.tech4school.com.