`nullmx.castso.com`

	DNSSEC	⚠️ Not signed
	A	216.218.185.162^{🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA}

`castso.com`

	DNSSEC	⚠️ Not signed
	A	216.218.185.162^{🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA}
	NS	`sc-a.sinkhole.shadowserver.org` ⚠️ Not in zone NS records
	NS	`sc-b.sinkhole.shadowserver.org` ⚠️ Not in zone NS records
	NS	`sc-c.sinkhole.shadowserver.org` ⚠️ Not in zone NS records
	NS	`sc-d.sinkhole.shadowserver.org` ⚠️ Not in zone NS records

Same first word

nullmx.org

nullmx.com

nullmx.net

Similar names

mlnxul.com

DNS History

3 records (1 active, 2 former)

○A203.126.218.1882016-09-19 → 2016-09-19 · 3 obs

● 2016-09-19 11:37:34
○ 2026-02-14 18:54:50
○ 2026-03-25 08:08:22

●A216.218.185.1622026-02-14 → 2026-03-25 · 3 obs

○ 2016-09-19 11:37:34
● 2026-02-14 18:54:50
● 2026-03-25 08:08:22

○A31.209.107.1002016-09-19 → 2016-09-19 · 3 obs

● 2016-09-19 11:37:34
○ 2026-02-14 18:54:50
○ 2026-03-25 08:08:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
castso.com	sc-d.sinkhole.shadowserver.org, sc-a.sinkhole.shadowserver.org, sc-b.sinkhole.shadowserver.org, sc-c.sinkhole.shadowserver.org	-

✅ Authoritative Response

Server:85.17.70.58

NS records: sc-d.sinkhole.shadowserver.org, sc-a.sinkhole.shadowserver.org, sc-b.sinkhole.shadowserver.org, sc-c.sinkhole.shadowserver.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for castso.com (unsigned zone)

⏱️ Timing

Total: 698ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.218.185.162`

Analysis

IP Addresses

nullmx.castso.com points to IP number: 216.218.185.162.

Other host names such as alrwa.in, lcrqnmjcux.net, rabcc.com, bvihvvjchgt.com and 1fd7a128c311h.net share IPs with nullmx.castso.com.

nullmx.castso.com - robtex.com