dotcourse.com - dns.ninja
dotcourse.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 | ns2.afternic.com ⭐ | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| NS | ns1.afternic.com | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=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=1781021831 | ||||||
Same first word
dotcourse.com |
Similar names
DNS History
8 records (4 active, 4 former)
○NSns01.cashparking.com2015-07-22 → 2017-03-19 · 4 obs
● 2017-03-19 23:35:24
○ 2026-03-08 21:09:48
○ 2026-06-09 16:46:10
●NSns1.afternic.com2026-03-08 → 2026-06-09 · 3 obs
● 2026-03-08 21:09:48
● 2026-06-09 16:46:10
●NSns2.afternic.com2026-03-08 → 2026-06-09 · 3 obs
● 2026-03-08 21:09:48
● 2026-06-09 16:46:10
○MXmailstore1.secureserver.net2015-07-22 → 2017-03-19 · 4 obs
● 2017-03-19 23:35:24
○ 2026-03-08 21:09:48
○ 2026-06-09 16:46:10
○MXsmtp.secureserver.net2015-07-22 → 2017-03-19 · 4 obs
● 2017-03-19 23:35:24
○ 2026-03-08 21:09:48
○ 2026-06-09 16:46:10
●A13.248.169.482026-03-08 → 2026-06-09 · 3 obs
● 2026-03-08 21:09:48
● 2026-06-09 16:46:10
○A184.168.221.962015-07-22 → 2017-03-19 · 4 obs
● 2017-03-19 23:35:24
○ 2026-03-08 21:09:48
○ 2026-06-09 16:46:10
●A76.223.54.1462026-03-08 → 2026-06-09 · 3 obs
● 2026-03-08 21:09:48
● 2026-06-09 16:46:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net... | - |
| dotcourse.com | ns1.afternic.com, ns2.afternic.com | 4 records |
✅ Authoritative Response
Server:97.74.98.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dotcourse.com (unsigned zone)
⏱️ Timing
Total: 581ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)
Analysis
IP Addresses
dotcourse.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.
createunity.org, baavs.com, www.dqfor.me plus two other host names have IP numbers in common with dotcourse.com.
Name Servers
dotcourse.com is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
The name server configuration of dotcourse.com is shared with other domains, for instance ns1.potko.com, robma.com, playandsmile.com and two others.
There is at least partial name server overlap between dotcourse.com and other domains — hamiltongiftbaskets.com, glamourmodel.com, scambox.com and two more among them.
These name servers frequently co-occur with the name servers verification-kpgoxbwy7lja8vfpnhny9g.ns101.verify.hn and verification-n4gbty5liyvkevwwcw8zap.ns101.verify.hn.
ns1.afternic.com and ns2.afternic.com each resolve to two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, while ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.