mathofcourse.com - robtex.com
mathofcourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.243.5🇺🇸 Amazon13.248.240.0/20 | ||||||
| PTR | a16e665f42988324c.awsglobalaccelerator.com | ||||||
| A | 76.223.105.230🇺🇸 Amazon76.223.96.0/20 | ||||||
| NS | ns19.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21d0::a🇺🇸 GODADDY-DNS2603:5:21d0::/44 | ||||||
| PTR | ns19.domaincontrol.com | ||||||
| A | 97.74.109.10🇺🇸 GODADDY-DNS97.74.108.0/23 | ||||||
| PTR | ns19.domaincontrol.com | ||||||
| NS | ns20.domaincontrol.com | ||||||
| A | 2603:5:22d0::a🇺🇸 GODADDY-DNS2603:5:22d0::/44 | ||||||
| PTR | ns20.domaincontrol.com | ||||||
| A | 173.201.77.10🇺🇸 GODADDY-DNS173.201.76.0/23 | ||||||
| PTR | ns20.domaincontrol.com | ||||||
| SOA | ns19.domaincontrol.comdns@jomax.net 2024-10-29 #1 | ||||||
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=1777182256 | ||||||
Same first word
mathofcourse.com |
Similar names
DNS History
4 records (4 active, 0 former)
●NSns19.domaincontrol.com2026-03-01 → 2026-04-26 · 2 obs
● 2026-04-26 06:02:30
●NSns20.domaincontrol.com2026-03-01 → 2026-04-26 · 2 obs
● 2026-04-26 06:02:30
●A13.248.243.52026-03-01 → 2026-04-26 · 2 obs
● 2026-04-26 06:02:30
●A76.223.105.2302026-03-01 → 2026-04-26 · 2 obs
● 2026-04-26 06:02:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net... | - |
| mathofcourse.com | ns19.domaincontrol.com, ns20.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.77.10
NS records: ns19.domaincontrol.com, ns20.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathofcourse.com (unsigned zone)
⏱️ Timing
Total: 130ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns19.domaincontrol.com, ns20.domaincontrol.com |
| SOA | 1 | ns19.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns19.domaincontrol.com, ns19.domaincontrol.com, ns20.domaincontrol.com...)
Analysis
IP Addresses
mathofcourse.com points to two IP numbers: 13.248.243.5 and 76.223.105.230.
Other host names such as lionpridefoundation.org, hosefit.in, bytosis.com, thehoneycane.com and beaconviewconsulting.com share IPs with mathofcourse.com.
Name Servers
mathofcourse.com is delegated to two name servers: ns19.domaincontrol.com and ns20.domaincontrol.com.
mathofcourse.com shares the same name server setup as obsessionaire.com, growddd.com, weltderfrau.com, futures4all.org and wamarchitecture.com.
Host names with two IP numbers: ns19.domaincontrol.com points to: 2603:5:21d0::a and 97.74.109.10; ns20.domaincontrol.com points to: 2603:5:22d0::a and 173.201.77.10.