`mail.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`

`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}
	NS	`ns53.domaincontrol.com` ⭐
	NS	`ns54.domaincontrol.com`
	MX	`tech4school.com` ⭐
	MX	`mail.tech4school.com`⁽²⁰⁾
	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.com`dns@jomax.net 2026-03-29 #1

MX for

tech4school.com

Previously MX for

mail.tech4school.com

Same first word

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DNS History

7 records (1 active, 6 former)

○NSns53.domaincontrol.com2015-10-20 → 2016-04-13 · 4 obs

● 2015-10-20 08:39:18
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

○NSns54.domaincontrol.com2015-10-20 → 2016-04-13 · 4 obs

● 2015-10-20 08:39:18
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

○MXmail.tech4school.com2015-10-20 → 2016-04-13 · 4 obs

● 2015-10-20 08:39:18
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

○MXtech4school.com2015-10-20 → 2016-04-13 · 4 obs

● 2015-10-20 08:39:18
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

○A202.183.166.42015-06-04 → 2016-04-13 · 4 obs

● 2015-06-04 14:40:24
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

●A203.151.166.1232026-02-24 → 2026-04-05 · 3 obs

○ 2016-04-13 06:48:26
● 2026-02-24 15:36:40
● 2026-04-05 17:23:30

○CNAMEtech4school.com2015-06-04 → 2016-04-13 · 4 obs

● 2015-06-04 14:40:24
● 2016-04-13 06:48:26
○ 2026-02-24 15:36:40
○ 2026-04-05 17:23:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tech4school.com	ns53.domaincontrol.com, ns54.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.74.27

NS records: ns53.domaincontrol.com, ns54.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tech4school.com (unsigned zone)

⏱️ Timing

Total: 176ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.151.166.123`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns53.domaincontrol.com, ns53.domaincontrol.com, ns54.domaincontrol.com...)

Analysis

Mail Server Role

mail.tech4school.com serves as a mail server for tech4school.com.

tech4school.com is commonly used as a mail server alongside mail.tech4school.com.

IP Addresses

mail.tech4school.com resolves to one IP number: 203.151.166.123.

Other host names, for instance beasttech.com, tech4office.com, inspiretechnology.net, 2nice4u.com and mail.2nice4u.com share IP numbers with mail.tech4school.com.

mail.tech4school.com - robtex.com