`nullmx.masbox.com`

	DNSSEC	⚠️ Not signed
	A	121.254.178.236^{🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary}

`masbox.com`

	DNSSEC	⚠️ Not signed
	A	121.254.178.235^{🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary}
	NS	`ns2.domainca.com` ⭐
	NS	`ns.domainca.com`
	SOA	`ns.domainca.com`root@domainca.com 2020-07-20 #12

Same first word

nullmx.net

nullmx.org

nullmx.com

Similar names

mlnxul.com

DNS History

3 records (1 active, 2 former)

●A121.254.178.2362026-03-02 → 2026-04-28 · 3 obs

○ 2015-11-02 22:33:38
● 2026-03-02 17:33:16
● 2026-04-28 04:12:18

○A211.106.65.1112015-06-06 → 2015-06-06 · 3 obs

● 2015-06-06 02:09:08
○ 2015-11-02 22:33:38
○ 2026-04-28 04:12:18

○A211.106.65.1122015-06-06 → 2015-06-06 · 3 obs

● 2015-06-06 02:09:08
○ 2015-11-02 22:33:38
○ 2026-04-28 04:12:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
masbox.com	ns.domainca.com, ns2.domainca.com	2 records

✅ Authoritative Response

Server:121.78.117.39

NS records: ns.domainca.com, ns2.domainca.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masbox.com (unsigned zone)

⏱️ Timing

Total: 484ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.254.178.236`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.domainca.com, ns2.domainca.com)

Analysis

IP Addresses

nullmx.masbox.com points to a single IP number: 121.254.178.236.

Other host names, for instance gootz.co.kr, web05.newserver.com, ns3.7504.co.kr, mail.coupangcar.com and blog.weemba.com share IP numbers with nullmx.masbox.com.

nullmx.masbox.com - robtex.com