`nullmx.specialisttool.com`

DNSSEC	⚠️ Not signed
A	157.7.189.53^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`users225.vip.heteml.jp`

`specialisttool.com`

	DNSSEC	⚠️ Not signed
	A	157.7.189.53^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
	NS	`dns0.heteml.jp` ⭐
	NS	`dns1.heteml.jp`
	MX	`mx.hetemail.jp` ⭐
	TXT	`v=spf1 include:_spf.heteml.jp ~all`
	SOA	`dns0.heteml.jp`hostmaster@specialisttool.com serial=1774629617

Previously MX for

specialisttool.com

Same first word

nullmx.net

nullmx.org

nullmx.com

Similar names

mlnxul.com

DNS History

3 records (1 active, 2 former)

○A112.78.219.1452015-06-17 → 2015-06-17 · 3 obs

● 2015-06-17 07:30:10
○ 2015-10-28 05:41:14
○ 2026-03-27 16:43:38

○A157.7.188.1952015-10-28 → 2016-11-20 · 4 obs

○ 2015-06-17 07:30:10
● 2015-10-28 05:41:14
● 2016-11-20 15:13:46
○ 2026-03-27 16:43:38

●A157.7.189.532026-03-27 → 2026-03-27 · 2 obs

○ 2016-11-20 15:13:46
● 2026-03-27 16:43:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net...	-
specialisttool.com	dns0.heteml.jp, dns1.heteml.jp	-

✅ Authoritative Response

Server:157.7.188.149

NS records: dns0.heteml.jp, dns1.heteml.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for specialisttool.com (unsigned zone)

⏱️ Timing

Total: 1017ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.189.53`

Analysis

IP Addresses

nullmx.specialisttool.com points to a single IP: 157.7.189.53.

Other host names, for instance mail.koume-ah.com, hanagoza.com, endoyako.com, chintai.fun and webplus.jp share IP numbers with nullmx.specialisttool.com.

nullmx.specialisttool.com - robtex.com