securitycourse.com - dns.ninja
securitycourse.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 | ||||||
| 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=1786969449 | ||||||
Previously MX for
Subdomains
mail.securitycourse.com |
Same first word
securitycourse.com |
Similar names
sourcesecurity.in |
sourcesecurity.ca |
sourcesecurity.us |
securitysource.com.au |
sourcesecurity.com |
coursesecurity.com |
securitysource.com |
sourcesecurity.net |
DNS History
16 records (4 active, 12 former)
○NSns1.afternic.com2026-06-26 → 2026-06-26 · 5 obs
○ 2026-06-02 23:04:56
● 2026-06-26 17:26:50
○ 2026-07-19 18:34:16
○ 2026-08-17 12:44:50
○NSns1.dan.com2026-04-14 → 2026-04-18 · 5 obs
● 2026-04-14 02:55:48
● 2026-04-18 08:08:18
○ 2026-05-19 04:48:48
○ 2026-08-17 12:44:50
○NSns1.syrahost.com2015-05-16 → 2017-06-11 · 4 obs
● 2017-06-11 15:54:36
○ 2026-03-30 09:56:32
○ 2026-08-17 12:44:50
○NSns1.undeveloped.com2026-04-14 → 2026-04-18 · 5 obs
● 2026-04-14 02:55:48
● 2026-04-18 08:08:18
○ 2026-05-19 04:48:48
○ 2026-08-17 12:44:50
○NSns2.afternic.com2026-06-26 → 2026-06-26 · 5 obs
○ 2026-06-02 23:04:56
● 2026-06-26 17:26:50
○ 2026-07-19 18:34:16
○ 2026-08-17 12:44:50
○NSns2.dan.com2026-04-14 → 2026-04-18 · 5 obs
● 2026-04-14 02:55:48
● 2026-04-18 08:08:18
○ 2026-05-19 04:48:48
○ 2026-08-17 12:44:50
○NSns2.syrahost.com2015-05-16 → 2017-06-11 · 4 obs
● 2017-06-11 15:54:36
○ 2026-03-30 09:56:32
○ 2026-08-17 12:44:50
○NSns2.undeveloped.com2026-04-14 → 2026-04-18 · 5 obs
● 2026-04-14 02:55:48
● 2026-04-18 08:08:18
○ 2026-05-19 04:48:48
○ 2026-08-17 12:44:50
●NSns3.afternic.com2026-03-30 → 2026-08-17 · 5 obs
● 2026-03-30 09:56:32
○ 2026-04-14 02:55:48
● 2026-07-19 18:34:16
● 2026-08-17 12:44:50
●NSns4.afternic.com2026-03-30 → 2026-08-17 · 5 obs
● 2026-03-30 09:56:32
○ 2026-04-14 02:55:48
● 2026-07-19 18:34:16
● 2026-08-17 12:44:50
○NSns5.afternic.com2026-05-19 → 2026-06-02 · 5 obs
● 2026-05-19 04:48:48
● 2026-06-02 23:04:56
○ 2026-06-26 17:26:50
○ 2026-08-17 12:44:50
○NSns6.afternic.com2026-05-19 → 2026-06-02 · 5 obs
● 2026-05-19 04:48:48
● 2026-06-02 23:04:56
○ 2026-06-26 17:26:50
○ 2026-08-17 12:44:50
○MXsecuritycourse.com2015-05-16 → 2017-06-11 · 4 obs
● 2017-06-11 15:54:36
○ 2026-03-30 09:56:32
○ 2026-08-17 12:44:50
○A103.226.222.1622015-05-16 → 2017-06-11 · 4 obs
● 2017-06-11 15:54:36
○ 2026-03-30 09:56:32
○ 2026-08-17 12:44:50
●A13.248.169.482026-03-30 → 2026-08-17 · 3 obs
● 2026-03-30 09:56:32
● 2026-08-17 12:44:50
●A76.223.54.1462026-03-30 → 2026-08-17 · 3 obs
● 2026-03-30 09:56:32
● 2026-08-17 12:44:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| securitycourse.com | ns3.afternic.com, ns4.afternic.com | 2 records |
✅ Authoritative Response
Server:97.74.98.65
NS records: ns3.afternic.com, ns4.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for securitycourse.com (unsigned zone)
⏱️ Timing
Total: 140ms | 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
securitycourse.com is a parent domain of mail.securitycourse.com.
IP Addresses
securitycourse.com directs to two IP numbers, 13.248.169.48 and 76.223.54.146
proplaner.com, multisigsvmarket.xyz, pso7.p9.org plus two other host names have IP numbers in common with securitycourse.com.
Name Servers
securitycourse.com is delegated to two name servers: ns3.afternic.com and ns4.afternic.com.
The name server configuration of securitycourse.com is shared with other domains, for instance drydefense.com, kor.us, h.7899999.com and two others.
securitycourse.com shares at least some of its name servers with other domains, including win-way.com, 7761.com, d-trade.com and two others.
These name servers are frequently paired with the name servers ns1.afternic.com and ns2.afternic.com.
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.