sub4systems.com - robtex.com
sub4systems.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=1777182256 | ||||||
Same first word
sub4systems.com |
DNS History
9 records (8 active, 1 former)
●NSns41.domaincontrol.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●NSns42.domaincontrol.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●MXalt1.aspmx.l.google.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●MXalt2.aspmx.l.google.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●MXalt3.aspmx.l.google.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●MXalt4.aspmx.l.google.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
●MXaspmx.l.google.com2026-03-22 → 2026-04-26 · 2 obs
● 2026-04-26 05:49:18
○A141.8.225.312016-04-22 → 2017-03-26 · 4 obs
● 2017-03-26 09:17:06
○ 2026-03-22 01:06:44
○ 2026-04-26 05:49:18
●A67.225.240.2002026-03-22 → 2026-04-26 · 3 obs
● 2026-03-22 01:06:44
● 2026-04-26 05:49:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sub4systems.com | ns41.domaincontrol.com, ns42.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.68.21
NS records: ns41.domaincontrol.com, ns42.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sub4systems.com (unsigned zone)
⏱️ Timing
Total: 126ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 67.225.240.200 |
| NS | 2 | ns41.domaincontrol.com, ns42.domaincontrol.com |
| MX | 5 | alt2.aspmx.l.google.com (pri: 5), alt4.aspmx.l.google.com (pri: 10)... |
| SOA | 1 | ns41.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns41.domaincontrol.com, ns41.domaincontrol.com, ns42.domaincontrol.com...)
Analysis
IP Addresses
sub4systems.com maps to IP address 67.225.240.200.
Other host names for instance donstahr.com and mikestahr.com share IP numbers with sub4systems.com.
Name Servers
Two name servers ns41.domaincontrol.com and ns42.domaincontrol.com are delegated to sub4systems.com.
sub4systems.com uses the same name server configuration as other domains, such as kansasdeer.info, tdinform.com, medicaltransportationgeorgia.com, certusplan.info and proemly.com.
Host names with two IPs:
ns41.domaincontrol.com points to 2603:5:2142::15 and 97.74.100.21.
ns42.domaincontrol.com points to 2603:5:2242::15 and 173.201.68.21.
Mail Servers
sub4systems.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
sub4systems.com shares mail servers with other domains at least in part, for instance whatdafox.com, me.ntust.edu.tw, koyalwholesale.com, ns500754.ns500742.ns500754.ns500754.ns500671.ns500704.ns500704.ns500704.ns500704.ns500688.ns500704.ns500666.lustychickser.com and ns500759.ns500759.ns500759.ns500758.ns500698.ns500735.ns500698.ns500698.ns500736.ns500735.ns500576.ns500698.ns500686.ns500619.ns500652.ns500576.trackreceptor.com.
These mail servers are commonly used together with aspmx2.googlemail.com and aspmx3.googlemail.com.
Two IPs per host name:
aspmx.l.google.com points to: 2607:f8b0:4004:c25::1b and 192.178.155.27
alt1.aspmx.l.google.com points to: 2a00:1450:4025:402::1b and 142.250.102.26
alt2.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.27
alt3.aspmx.l.google.com points to: 2a00:1450:4009:c0f::1a and 192.178.223.27
alt4.aspmx.l.google.com points to: 2a00:1450:400c:c00::1a and 173.194.76.26
Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)