courseio.com - robtex.com
courseio.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.atom.com ⚠️ Not in zone NS records | ||||||
| A | 44.219.81.145🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix | ||||||
| PTR | ec2-44-219-81-145.compute-1.amazonaws.com | ||||||
| NS | ns2.atom.com ⚠️ Not in zone NS records | ||||||
| A | 50.19.240.86🇺🇸 Amazon50.19.128.0/17 EC2 IAD prefix | ||||||
| PTR | ec2-50-19-240-86.compute-1.amazonaws.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=1776268407 | ||||||
Same first word
courseio.com |
Similar names
DNS History
11 records (2 active, 9 former)
○NSns-cloud-d1.googledomains.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 03:17:52
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○NSns-cloud-d2.googledomains.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 03:17:52
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○NSns-cloud-d3.googledomains.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 03:17:52
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○NSns-cloud-d4.googledomains.com2015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 03:17:52
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
○ 2015-10-23 01:52:26
○ 2026-04-15 16:18:26
●NSns1.atom.com2026-03-11 → 2026-04-15 · 3 obs
○ 2016-04-17 23:22:58
● 2026-03-11 08:59:28
● 2026-04-15 16:18:26
● 2026-03-11 08:59:28
● 2026-04-15 16:18:26
●NSns2.atom.com2026-03-11 → 2026-04-15 · 3 obs
○ 2016-04-17 23:22:58
● 2026-03-11 08:59:28
● 2026-04-15 16:18:26
● 2026-03-11 08:59:28
● 2026-04-15 16:18:26
○NSns41.domaincontrol.com2016-01-01 → 2016-04-17 · 5 obs
○ 2015-10-23 01:52:26
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
○NSns42.domaincontrol.com2016-01-01 → 2016-04-17 · 5 obs
○ 2015-10-23 01:52:26
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
○MXmailstore1.secureserver.net2016-01-01 → 2016-04-17 · 4 obs
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
○MXsmtp.secureserver.net2016-01-01 → 2016-04-17 · 4 obs
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
○A50.63.202.462016-01-01 → 2016-04-17 · 4 obs
● 2016-01-01 08:34:54
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
● 2016-04-17 23:22:58
○ 2026-03-11 08:59:28
○ 2026-04-15 16:18:26
🔍 DNS Trace
Analysis
Name Servers
courseio.com is delegated to two name servers: ns1.atom.com and ns2.atom.com.
courseio.com uses the same name server setup as other domains, for instance hotfencing.com, hoperoom.com, yaril.com, johns.ca and realtormogul.com.
courseio.com shares name servers with other domains at least partially; for example faqqq.com, redchains.com, serap.com.tr and diomico.com.
these name servers are commonly used together with ns1.urlmart.com and ns2.urlmart.com.
Host names with one IP number:
ns1.atom.com points to: 44.219.81.145.
ns2.atom.com points to: 50.19.240.86.