courseshub.net - robtex.com
courseshub.net
net
| 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=1785723072 | ||||||
Same first word
Similar names
ehbocursus.eu |
hubcourses.com |
scrubhouse.com |
sourcehubs.shop |
coursehubs.com |
ehbocursus.nl |
ehbocursus.com |
cursusehbo.nl |
sourcehubs.store |
DNS History
23 records (8 active, 15 former)
○NSns21.domaincontrol.com2017-01-04 → 2017-01-04 · 3 obs
○ 2018-05-27 18:07:00
○ 2026-08-03 02:41:48
○NSns22.domaincontrol.com2017-01-04 → 2017-01-04 · 3 obs
○ 2018-05-27 18:07:00
○ 2026-08-03 02:41:48
○NSns53.domaincontrol.com2018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○NSns54.domaincontrol.com2018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
●NSns65.domaincontrol.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●NSns66.domaincontrol.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●MXalt1.aspmx.l.google.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●MXalt2.aspmx.l.google.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●MXaspmx.l.google.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●MXaspmx2.googlemail.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
●MXaspmx3.googlemail.com2026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
○MXmailstore1.secureserver.net2017-01-04 → 2017-01-04 · 3 obs
○ 2018-05-27 18:07:00
○ 2026-08-03 02:41:48
○MXsmtp.secureserver.net2017-01-04 → 2017-01-04 · 3 obs
○ 2018-05-27 18:07:00
○ 2026-08-03 02:41:48
○A104.239.173.2542017-01-04 → 2017-01-04 · 3 obs
○ 2018-05-27 18:07:00
○ 2026-08-03 02:41:48
●A167.99.158.742026-07-01 → 2026-08-03 · 3 obs
● 2026-07-01 10:33:02
● 2026-08-03 02:41:48
○A184.168.221.742018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A184.168.221.762018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A184.168.221.772018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A50.63.202.682018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A50.63.202.712018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A50.63.202.772018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A50.63.202.832018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
○A50.63.202.862018-05-27 → 2018-05-27 · 4 obs
● 2018-05-27 18:07:00
○ 2026-07-01 10:33:02
○ 2026-08-03 02:41:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| courseshub.net | ns66.domaincontrol.com, ns65.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.70.43
NS records: ns66.domaincontrol.com, ns65.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseshub.net (unsigned zone)
⏱️ Timing
Total: 611ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 167.99.158.74 |
| NS | 2 | ns65.domaincontrol.com, ns66.domaincontrol.com |
| MX | 5 | alt1.aspmx.l.google.com (pri: 5), alt2.aspmx.l.google.com (pri: 5)... |
| TXT | 2 | google-site-verification=B0FMyG0s7iFQDhm, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns65.domaincontrol.com dns.jomax.net |
Analysis
IP Addresses
courseshub.net directs to one IP number, which is 167.99.158.74.
Name Servers
courseshub.net has two authoritative name servers — ns65.domaincontrol.com and ns66.domaincontrol.com.
courseshub.net has the same name server delegation as a number of other domains, such as surfsecureonline.com, coachlisajoy.com, wisconsinflyfishingcompany.com and two more.
Both ns65.domaincontrol.com and ns66.domaincontrol.com have two IP addresses each. ns65.domaincontrol.com resolves to 97.74.102.43 and 2603:5:2164::2b; ns66.domaincontrol.com resolves to 173.201.70.43 and 2603:5:2264::2b.
Mail Servers
courseshub.net has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
courseshub.net shares at least some of its mail servers with other domains — for example ns500699.ns500765.ns500699.ns500699.ns500734.ns500699.ns500699.ns500699.ns500683.ns500632.ns500632.ns500632.ns500588.ns500578.ns500110.dtrkdll.com, ns500734.ns500699.ns500699.ns500693.ns500734.ns500728.ns500699.ns500699.ns500693.ns500612.ns500612.ns500612.ns500578.ns500110.dtrkdll.com, ns500759.ns500759.ns500698.ns500759.ns500735.ns500698.ns500698.ns500735.ns500735.ns500708.ns500698.ns500619.ns500686.ns500619.trackreceptor.com 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, alt3.aspmx.l.google.com and 3 more.
Hosts with two IP numbers each:
aspmx2.googlemail.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
aspmx.l.google.com resolves to 142.251.163.27 and 2607:f8b0:4004:c1d::1b.
alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1b.
The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 108.177.123.26 IP addresses.