courseforme.com - dns.ninja
courseforme.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 | ns3.afternic.com ⭐ | ||||||
| A | 97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns3.afternic.com | ||||||
| NS | ns4.afternic.com | ||||||
| A | 173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns4.namefind.com | ||||||
| NS | verification-dnkinu9b4hr8jnd4qenaqn.ns101.verify.hn ⚠️ Not in zone NS records | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns3.afternic.comdns@jomax.net 2025-10-01 #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=1781406435 | ||||||
Subdomains
Same first word
courseforme.es |
courseforme.cn |
courseforme.com |
courseforme.de |
DNS History
14 records (5 active, 9 former)
○NSns1.dns4userver.com2015-07-26 → 2017-04-19 · 5 obs
● 2015-07-26 00:04:14
● 2017-04-19 07:18:16
○ 2026-03-23 15:52:54
○ 2026-06-14 03:33:38
○NSns2.dns4userver.com2015-07-26 → 2017-04-19 · 5 obs
● 2015-07-26 00:04:14
● 2017-04-19 07:18:16
○ 2026-03-23 15:52:54
○ 2026-06-14 03:33:38
●NSns3.afternic.com2026-03-23 → 2026-06-14 · 3 obs
● 2026-03-23 15:52:54
● 2026-06-14 03:33:38
○NSns3.dns4userver.com2015-07-26 → 2017-04-19 · 5 obs
● 2015-07-26 00:04:14
● 2017-04-19 07:18:16
○ 2026-03-23 15:52:54
○ 2026-06-14 03:33:38
●NSns4.afternic.com2026-03-23 → 2026-06-14 · 3 obs
● 2026-03-23 15:52:54
● 2026-06-14 03:33:38
●NSverification-dnkinu9b4hr8jnd4qenaqn.ns101.verify.hn2026-03-23 → 2026-06-14 · 3 obs
● 2026-03-23 15:52:54
● 2026-06-14 03:33:38
○MX.2026-03-23 → 2026-06-14 · 2 obs
○ 2026-06-14 03:33:38
○MXmail.courseforme.com2015-07-26 → 2017-04-19 · 5 obs
● 2015-07-26 00:04:14
● 2017-04-19 07:18:16
○ 2026-03-23 15:52:54
○ 2026-06-14 03:33:38
○MXmx01.courseforme.com2008-03-20 → 2008-03-20 · 3 obs
○ 2015-07-26 00:04:14
○ 2026-06-14 03:33:38
○MXmx02.courseforme.com2008-03-20 → 2008-03-20 · 3 obs
○ 2015-07-26 00:04:14
○ 2026-06-14 03:33:38
●A13.248.169.482026-03-23 → 2026-06-14 · 3 obs
● 2026-03-23 15:52:54
● 2026-06-14 03:33:38
○A46.30.241.1672015-07-26 → 2017-04-19 · 5 obs
● 2015-07-26 00:04:14
● 2017-04-19 07:18:16
○ 2026-03-23 15:52:54
○ 2026-06-14 03:33:38
●A76.223.54.1462026-03-23 → 2026-06-14 · 3 obs
● 2026-03-23 15:52:54
● 2026-06-14 03:33:38
○A80.247.64.1382008-03-20 → 2008-03-20 · 3 obs
○ 2015-07-26 00:04:14
○ 2026-06-14 03:33:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net... | - |
| courseforme.com | ns3.afternic.com, ns4.afternic.com, verification-dnkinu9b4hr8jnd4qenaqn.ns101.verify.hn | 2 records |
✅ Authoritative Response
Server:173.201.66.65
NS records: ns3.afternic.com, ns4.afternic.com, verification-dnkinu9b4hr8jnd4qenaqn.ns101.verify.hn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseforme.com (unsigned zone)
⏱️ Timing
Total: 3790ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns3.afternic.com, ns4.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns3.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)
Analysis
Hierarchy
courseforme.com is the parent domain of mx02.courseforme.com, mx01.courseforme.com and mail.courseforme.com.
IP Addresses
courseforme.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.
Two other host names, along with samstransport.com, motormanufacturers.com and modoofree.com, also share IP numbers with courseforme.com.
Name Servers
courseforme.com carries NS records delegating to ns3.afternic.com, ns4.afternic.com and verification-dnkinu9b4hr8jnd4qenaqn.ns101.verify.hn.
courseforme.com shares at least some of its name servers with other domains, including www.diarystar.com, neopacific.com, ringcha.com and two others.
These name servers are frequently seen alongside the name servers verification-frsgyqgb387khmr9jzuunx.ns101.verify.hn.
ns3.afternic.com and ns4.afternic.com each resolve to one IP number: ns3.afternic.com points to 97.74.98.65 and ns4.afternic.com points to 173.201.66.65.