threecourses.com - dns.ninja
threecourses.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns5.afternic.com ⭐ | ||||||
| A | 2603:5:2134::42🇺🇸 GODADDY-DNS2603:5:2130::/44 | ||||||
| PTR | ns5.afternic.com | ||||||
| A | 97.74.99.66🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns5.afternic.com | ||||||
| NS | ns6.afternic.com | ||||||
| A | 2603:5:2234::42🇺🇸 GODADDY-DNS2603:5:2230::/44 | ||||||
| PTR | ns6.afternic.com | ||||||
| A | 173.201.67.66🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns6.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns5.afternic.comdns@jomax.net 2025-09-30 #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.netnstld@verisign-grs.com serial=1783781317 | ||||||
Previously MX for
threecourses.com |
Same first word
threecourses.com |
Similar names
threesources.com |
securehoster.net |
securehoster.eu |
securehoster.org |
ethresources.com |
securehoster.nl |
theressource.com |
DNS History
12 records (4 active, 8 former)
○NSns1.delphinus.net.au2015-05-21 → 2017-12-26 · 5 obs
● 2015-05-21 07:39:26
● 2017-12-26 21:18:42
○ 2026-07-01 13:47:38
○ 2026-07-11 15:09:48
○NSns2.delphinus.net.au2015-05-21 → 2017-12-26 · 5 obs
● 2015-05-21 07:39:26
● 2017-12-26 21:18:42
○ 2026-07-01 13:47:38
○ 2026-07-11 15:09:48
●NSns5.afternic.com2026-07-01 → 2026-07-11 · 3 obs
● 2026-07-01 13:47:38
● 2026-07-11 15:09:48
○NSns5.puc.edu2008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-21 07:39:26
○ 2026-07-11 15:09:48
●NSns6.afternic.com2026-07-01 → 2026-07-11 · 3 obs
● 2026-07-01 13:47:38
● 2026-07-11 15:09:48
○NSns6.puc.edu2008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-21 07:39:26
○ 2026-07-11 15:09:48
○MXthreecourses.com2015-05-21 → 2017-12-26 · 5 obs
● 2015-05-21 07:39:26
● 2017-12-26 21:18:42
○ 2026-07-01 13:47:38
○ 2026-07-11 15:09:48
○A103.18.41.1702016-04-14 → 2017-12-26 · 5 obs
● 2016-04-14 03:49:02
● 2017-12-26 21:18:42
○ 2026-07-01 13:47:38
○ 2026-07-11 15:09:48
●A13.248.169.482026-07-01 → 2026-07-11 · 3 obs
● 2026-07-01 13:47:38
● 2026-07-11 15:09:48
○A208.116.54.182015-05-21 → 2016-01-04 · 5 obs
● 2015-05-21 07:39:26
● 2016-01-04 10:22:14
○ 2016-04-14 03:49:02
○ 2026-07-11 15:09:48
○A67.134.132.322008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-21 07:39:26
○ 2026-07-11 15:09:48
●A76.223.54.1462026-07-01 → 2026-07-11 · 3 obs
● 2026-07-01 13:47:38
● 2026-07-11 15:09:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| threecourses.com | ns5.afternic.com, ns6.afternic.com | 2 records |
✅ Authoritative Response
Server:173.201.67.66
NS records: ns5.afternic.com, ns6.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for threecourses.com (unsigned zone)
⏱️ Timing
Total: 2273ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns5.afternic.com, ns6.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns5.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns5.afternic.com, ns6.afternic.com)
Analysis
IP Addresses
threecourses.com directs to two IP numbers, 13.248.169.48 and 76.223.54.146
leighwinters.com, cnadigital.com, itergroup.com plus two other host names have IP numbers in common with threecourses.com.
Name Servers
threecourses.com is delegated to two name servers: ns5.afternic.com and ns6.afternic.com.
The name server configuration of threecourses.com is shared with other domains, for instance fitzpatrickchiropractic.com, robotfinger.com, chuanqicikesifu.cmmfg.com and two others.
threecourses.com has at least partial name server overlap with other domains, such as miicat.xyz, multistaking.xyz, ghsd.xyz and two others.
It is common to find these name servers paired with the name servers verification-gakbzzzqmt6gkcplw4efpp.ns101.verify.hn.
ns5.afternic.com and ns6.afternic.com each resolve to two IP addresses: ns5.afternic.com points to 97.74.99.66 and 2603:5:2134::42, while ns6.afternic.com points to 173.201.67.66 and 2603:5:2234::42.