ocsystems.com - dns.ninja

`ocsystems.com`

DNSSEC	⚠️ Not signed
A	54.221.213.31^{🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix}
		PTR	`ec2-54-221-213-31.compute-1.amazonaws.com`
NS	`ns2.his.com` ⭐
		A	134.122.36.158^{🇨🇦 DIGITALOCEAN134.122.32.0/20 DigitalOcean}
			PTR	`ns2.his.com`
NS	`ns.his.com` ⚠️ Not in parent delegation
		A	104.236.68.216^{🇺🇸 DIGITALOCEAN104.236.64.0/18 DigitalOcean}
			PTR	`ns0.his.com`
NS	`ns3.his.com`
		A	95.85.48.55^{🇳🇱 DIGITALOCEAN95.85.0.0/18 DigitalOcean}
			PTR	`ns3a.his.com`
NS	`ns4.his.com`
		A	206.189.184.180^{🇺🇸 DIGITALOCEAN206.189.176.0/20 DigitalOcean}
			PTR	`ns4.his.com`
MX	`pmg.his.com` ⭐
		A	75.149.19.217^{🇺🇸 COMCAST-IBONE75.144.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`pgh-217.his.com`
		A	108.56.65.15^{🇺🇸 AS701108.56.0.0/16 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`dc-15.his.net`
TXT	`v=spf1 include:his.com -all`
SOA	`ns.his.com`hostmaster@his.com 2025-11-21 #0

`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.net`nstld@verisign-grs.com serial=1785484712

Subdomains

ws6.ocsystems.com

docs.ocsystems.com

Same first word

ocsystems.nl

ocsystems.de

ocsystems.es

ocsystems.com

Similar names

DNS History

12 records (6 active, 6 former)

●NSns.his.com2007-09-19 → 2026-07-31 · 2 obs

● 2007-09-19 09:15:18
● 2026-07-31 08:29:08

●NSns2.his.com2007-09-19 → 2026-07-31 · 2 obs

● 2007-09-19 09:15:18
● 2026-07-31 08:29:08

●NSns3.his.com2007-09-19 → 2026-07-31 · 2 obs

● 2007-09-19 09:15:18
● 2026-07-31 08:29:08

●NSns4.his.com2007-09-19 → 2026-07-31 · 2 obs

● 2007-09-19 09:15:18
● 2026-07-31 08:29:08

●MXpmg.his.com2026-02-18 → 2026-07-31 · 3 obs

○ 2017-06-26 01:50:32
● 2026-02-18 05:47:54
● 2026-07-31 08:29:08

○MXsmtp-1.his.com2007-09-19 → 2017-06-26 · 4 obs

● 2007-09-19 09:15:18
● 2017-06-26 01:50:32
○ 2026-02-18 05:47:54
○ 2026-07-31 08:29:08

○MXsmtp-2.his.com2007-09-19 → 2017-06-26 · 4 obs

● 2007-09-19 09:15:18
● 2017-06-26 01:50:32
○ 2026-02-18 05:47:54
○ 2026-07-31 08:29:08

○MXsmtp-in-ashva.his.com2015-06-12 → 2017-06-26 · 5 obs

○ 2007-09-19 09:15:18
● 2015-06-12 09:26:00
● 2017-06-26 01:50:32
○ 2026-02-18 05:47:54
○ 2026-07-31 08:29:08

○MXsmtp-in.his.com2007-09-19 → 2007-09-19 · 3 obs

● 2007-09-19 09:15:18
○ 2015-06-12 09:26:00
○ 2026-07-31 08:29:08

○A216.194.205.332007-09-19 → 2007-09-19 · 3 obs

● 2007-09-19 09:15:18
○ 2015-06-12 09:26:00
○ 2026-07-31 08:29:08

○A216.194.248.502015-06-12 → 2017-06-26 · 5 obs

○ 2007-09-19 09:15:18
● 2015-06-12 09:26:00
● 2017-06-26 01:50:32
○ 2026-02-18 05:47:54
○ 2026-07-31 08:29:08

●A54.221.213.312026-02-18 → 2026-07-31 · 3 obs

○ 2017-06-26 01:50:32
● 2026-02-18 05:47:54
● 2026-07-31 08:29:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
ocsystems.com	ns.his.com, ns2.his.com, ns3.his.com	3 records

✅ Authoritative Response

Server:95.85.48.55

NS records: ns.his.com, ns2.his.com, ns3.his.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ocsystems.com (unsigned zone)

⏱️ Timing

Total: 369ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.221.213.31`
NS	4	`ns3.his.com, ns.his.com...`
MX	1	`pmg.his.com (pri: 5)`
TXT	1	`v=spf1 include:his.com -all`
SOA	1	`ns.his.com hostmaster.his.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns.his.com, ns2.his.com, ns3.his.com)

Analysis

Hierarchy

The parent domain of ws6.ocsystems.com and docs.ocsystems.com is ocsystems.com.

IP Addresses

ocsystems.com directs to one IP number, which is 54.221.213.31.

Additional host names — including docs.ocsystems.com and ec2-54-221-213-31.compute-1.amazonaws.com — share IP numbers with ocsystems.com.

Name Servers

The domain ocsystems.com is delegated to these four name servers: ns2.his.com, ns3.his.com, ns4.his.com and ns.his.com.

ocsystems.com has at least partial name server overlap with other domains, such as graphictuna.com, harewoodpartners.com, lpanet.org and two others.

It is common to see these name servers used together with name servers ns5.his.com and ns1.his.com.

ns2.his.com resolves to 134.122.36.158. ns3.his.com resolves to 95.85.48.55. ns4.his.com resolves to 206.189.184.180. ns.his.com resolves to 104.236.68.216. All four hosts carry exactly one IP address.

Mail Servers

ocsystems.com routes its mail through a single mail server, pmg.his.com.

ocsystems.com has the same mail server arrangement as a number of other domains, for example lamonia.com, fhrx.net, hisgov.net and two more.

ocsystems.com shares at least some of its mail servers with other domains — for example amazingrain.com, acttrade.org, w3ph.net and two more.

pmg.his.com has two IP addresses: 75.149.19.217 and 108.56.65.15.