opensystemstech.com - robtex.com
opensystemstech.com
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.netnstld@verisign-grs.com serial=1786861839 | ||||||
Subdomains
www.opensystemstech.com |
Same first word
opensystemstech.us |
opensystemstech.com |
Similar names
DNS History
15 records (11 active, 4 former)
●NSdns31.cloudns.net2026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
●NSdns32.cloudns.net2026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
●NSdns33.cloudns.net2026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
●NSdns34.cloudns.net2026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
○NSns25.worldnic.com2015-07-23 → 2018-10-28 · 4 obs
● 2018-10-28 02:26:38
○ 2026-03-26 12:32:50
○ 2026-08-16 06:55:34
○NSns26.worldnic.com2015-07-23 → 2018-10-28 · 4 obs
● 2018-10-28 02:26:38
○ 2026-03-26 12:32:50
○ 2026-08-16 06:55:34
●MXalt1.aspmx.l.google.com2015-07-23 → 2026-08-16 · 2 obs
● 2026-08-16 06:55:34
●MXalt2.aspmx.l.google.com2015-07-23 → 2026-08-16 · 2 obs
● 2026-08-16 06:55:34
●MXaspmx.l.google.com2015-07-23 → 2026-08-16 · 2 obs
● 2026-08-16 06:55:34
●MXaspmx2.googlemail.com2015-07-23 → 2026-08-16 · 2 obs
● 2026-08-16 06:55:34
●MXaspmx3.googlemail.com2015-07-23 → 2026-08-16 · 2 obs
● 2026-08-16 06:55:34
○A104.239.227.2382016-02-08 → 2018-10-28 · 5 obs
● 2016-02-08 15:54:32
● 2018-10-28 02:26:38
○ 2026-03-26 12:32:50
○ 2026-08-16 06:55:34
●A15.197.230.232026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
●A3.33.229.872026-03-26 → 2026-08-16 · 3 obs
● 2026-03-26 12:32:50
● 2026-08-16 06:55:34
○A66.228.63.1802015-07-23 → 2015-11-17 · 4 obs
● 2015-11-17 08:23:50
○ 2016-02-08 15:54:32
○ 2026-08-16 06:55:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| opensystemstech.com | dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net, dns34.cloudns.net | - |
✅ Authoritative Response
Server:185.136.96.100
NS records: dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net, dns34.cloudns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opensystemstech.com (unsigned zone)
⏱️ Timing
Total: 428ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.33.229.87, 15.197.230.23 |
| NS | 4 | dns33.cloudns.net, dns31.cloudns.net... |
| MX | 5 | alt2.aspmx.l.google.com (pri: 5), aspmx2.googlemail.com (pri: 10)... |
| TXT | 4 | google-site-verification=KKqIBPzytk7TglB, MS=BFBB0D61647E80ED3568363556E8000591EEC... |
| SOA | 1 | dns31.cloudns.net support.cloudns.net |
Analysis
Hierarchy
The domain www.opensystemstech.com falls under the parent opensystemstech.com.
IP Addresses
opensystemstech.com points to the IP addresses 3.33.229.87 and 15.197.230.23
Among the host names that share IP numbers with opensystemstech.com are seeacareerwithus.com, optimal-staffing.com, www.opensystemstech.com and two others.
Name Servers
The domain opensystemstech.com is delegated to these four name servers: dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net and dns34.cloudns.net.
At least some of opensystemstech.com's name servers are shared with other domains, for example unsereserver.de, worldvision.com, smartcaraustralia.com and two more.
Four hostnames, each resolving to a pair of IP addresses: dns31.cloudns.net directs to 185.136.96.100 and 2a06:fb00:1::1:100; dns32.cloudns.net directs to 185.136.97.100 and 2a06:fb00:1::2:100; dns33.cloudns.net directs to 185.136.98.100 and 2a06:fb00:1::3:100; dns34.cloudns.net directs to 185.136.99.100 and 2a06:fb00:1::4:100.
Mail Servers
opensystemstech.com has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
opensystemstech.com shares at least some of its mail servers with other domains — for example hkdm.de, coinbet24.com, intcis.net and two more.
It is common to find these mail servers paired with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt4.aspmx.l.google.com and 3 more.
Hosts with two IP numbers each:
The A records for aspmx2.googlemail.com return 192.178.234.26 and 2800:3f0:4003:c14::1a.
The A records for aspmx3.googlemail.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.
The A records for aspmx.l.google.com return 172.253.115.27 and 2607:f8b0:4004:c09::1a.
The A records for alt1.aspmx.l.google.com return 192.178.234.26 and 2800:3f0:4003:c14::1b.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 192.178.234.26 IP addresses.
aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 172.253.116.26 IP addresses.