securityonlinecourse.com - robtex.com
securityonlinecourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 107.180.40.48🇺🇸 AS400754107.180.0.0/18 IAD2 Allocation | ||||||
| PTR | 48.40.180.107.host.secureserver.net | ||||||
| NS | ns51.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2192::1a🇺🇸 GODADDY-DNS2603:5:2190::/44 | ||||||
| PTR | ns51.domaincontrol.com | ||||||
| A | 97.74.105.26🇺🇸 GODADDY-DNS97.74.104.0/23 | ||||||
| PTR | ns51.domaincontrol.com | ||||||
| NS | ns52.domaincontrol.com | ||||||
| A | 2603:5:2292::1a🇺🇸 GODADDY-DNS2603:5:2290::/44 | ||||||
| PTR | ns52.domaincontrol.com | ||||||
| A | 173.201.73.26🇺🇸 GODADDY-DNS173.201.72.0/23 | ||||||
| PTR | ns52.domaincontrol.com | ||||||
| MX | mail.securityonlinecourse.com ⭐ | ||||||
| A | 107.180.40.48🇺🇸 AS400754107.180.0.0/18 IAD2 Allocation | ||||||
| PTR | 48.40.180.107.host.secureserver.net | ||||||
| TXT | v=spf1 a mx ptr include:secureserver.net ~all | ||||||
| SOA | ns51.domaincontrol.comdns@jomax.net 2025-12-07 #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=1785980434 | ||||||
Subdomains
mail.securityonlinecourse.com |
Same first word
securityonlinecourse.com |
DNS History
4 records (4 active, 0 former)
●NSns51.domaincontrol.com2026-03-06 → 2026-08-06 · 2 obs
● 2026-08-06 02:07:14
●NSns52.domaincontrol.com2026-03-06 → 2026-08-06 · 2 obs
● 2026-08-06 02:07:14
●MXmail.securityonlinecourse.com2026-03-06 → 2026-08-06 · 2 obs
● 2026-08-06 02:07:14
●A107.180.40.482026-03-06 → 2026-08-06 · 2 obs
● 2026-08-06 02:07:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| securityonlinecourse.com | ns51.domaincontrol.com, ns52.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.105.26
NS records: ns51.domaincontrol.com, ns52.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for securityonlinecourse.com (unsigned zone)
⏱️ Timing
Total: 107ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 107.180.40.48 |
| NS | 2 | ns51.domaincontrol.com, ns52.domaincontrol.com |
| MX | 1 | mail.securityonlinecourse.com (pri: 0) |
| TXT | 1 | v=spf1 a mx ptr include:secureserver.net |
| SOA | 1 | ns51.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns51.domaincontrol.com, ns51.domaincontrol.com, ns52.domaincontrol.com...)
Analysis
Hierarchy
securityonlinecourse.com is the parent zone for mail.securityonlinecourse.com.
IP Addresses
securityonlinecourse.com resolves to one IP address: 107.180.40.48.
bostonfixed.us, mail.glsindustries.net, mail.securityonlinecourse.com and two other host names share IP numbers with securityonlinecourse.com.
Name Servers
securityonlinecourse.com is delegated to two name servers: ns51.domaincontrol.com and ns52.domaincontrol.com.
securityonlinecourse.com uses the same name servers as several other domains — among them reaviselectric.com, tasator.com, beach-design.co.uk and two more.
securityonlinecourse.com shares at least some of its name servers with other domains, such as basizfa.in.
ns51.domaincontrol.com and ns52.domaincontrol.com each resolve to two IP addresses: ns51.domaincontrol.com points to 97.74.105.26 and 2603:5:2192::1a, while ns52.domaincontrol.com points to 173.201.73.26 and 2603:5:2292::1a.
Mail Servers
Mail for securityonlinecourse.com is handled by a single mail server, mail.securityonlinecourse.com.
mail.securityonlinecourse.com resolves to a single IP number: 107.180.40.48.