coursemaker.net - robtex.com
coursemaker.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.238.194.23🇺🇸 HDHK38.238.192.0/20 | ||||||
| NS | ns1.taoa.com ⭐ | ||||||
| A | 8.217.124.76🇭🇰 Alibaba-Cloud8.217.0.0/17 Alibaba.com Singapore E-Commerce Private Limited 51 Bras Basah Road 04-08 Lazada One Singapore 189554 | ||||||
| NS | ns2.taoa.com | ||||||
| A | 47.253.200.33🇺🇸 Alibaba-Cloud47.253.128.0/17 Alibaba CLoud | ||||||
| SOA | ns1.taoa.comadmin@taoa.com 2026-03-19 #1 | ||||||
net
| 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=1774452922 | ||||||
Previously MX for
coursemaker.net |
Same first word
coursemaker.net |
Similar names
makersource.io |
makersource.com |
sourcemaker.de |
makercourse.com |
sourcemaker.us |
sourcemaker.fr |
sourcemaker.org |
DNS History
14 records (3 active, 11 former)
○NSdns11.parkpage.foundationapi.com2016-09-19 → 2016-09-19 · 4 obs
○ 2016-02-28 11:34:38
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
○NSdns12.parkpage.foundationapi.com2016-09-19 → 2016-09-19 · 4 obs
○ 2016-02-28 11:34:38
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
○NSdns13.register.com2007-09-21 → 2007-09-21 · 3 obs
● 2007-09-21 11:37:52
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
○NSdns14.register.com2007-09-21 → 2007-09-21 · 3 obs
● 2007-09-21 11:37:52
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
○NSdns9.parkpage.foundationapi.com2016-09-19 → 2016-09-19 · 4 obs
○ 2016-02-28 11:34:38
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
●NSns1.taoa.com2026-02-28 → 2026-03-25 · 3 obs
○ 2017-04-20 13:27:18
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
●NSns2.taoa.com2026-02-28 → 2026-03-25 · 3 obs
○ 2017-04-20 13:27:18
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
○NSns487.websitewelcome.com2015-07-03 → 2017-04-20 · 7 obs
○ 2007-09-21 11:37:52
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
○NSns488.websitewelcome.com2015-07-03 → 2017-04-20 · 7 obs
○ 2007-09-21 11:37:52
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
○MXcoursemaker.net2015-07-03 → 2017-04-20 · 7 obs
○ 2007-09-21 11:37:52
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
○A192.185.165.762015-07-03 → 2017-04-20 · 7 obs
○ 2007-09-21 11:37:52
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
● 2015-07-03 08:32:04
● 2016-02-28 11:34:38
○ 2016-09-19 17:59:04
● 2017-04-20 13:27:18
○ 2026-02-28 02:46:22
○ 2026-03-25 16:03:22
○A209.99.40.2222016-09-19 → 2016-09-19 · 4 obs
○ 2016-02-28 11:34:38
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
● 2016-09-19 17:59:04
○ 2017-04-20 13:27:18
○ 2026-03-25 16:03:22
○A216.21.229.1972007-09-21 → 2007-09-21 · 3 obs
● 2007-09-21 11:37:52
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
○ 2015-07-03 08:32:04
○ 2026-03-25 16:03:22
●A38.238.194.232026-02-28 → 2026-03-25 · 3 obs
○ 2017-04-20 13:27:18
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
● 2026-02-28 02:46:22
● 2026-03-25 16:03:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | f.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net... | - |
| coursemaker.net | ns1.taoa.com, ns2.taoa.com | - |
✅ Authoritative Response
Server:47.253.200.33
NS records: ns1.taoa.com, ns2.taoa.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursemaker.net (unsigned zone)
⏱️ Timing
Total: 3010ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.238.194.23 |
| NS | 2 | ns2.taoa.com, ns1.taoa.com |
| SOA | 1 | ns1.taoa.com admin.taoa.com |
Analysis
IP Addresses
coursemaker.net points to a single IP address: 38.238.194.23.
Other host names, for instance chinadls.net, share IP numbers with coursemaker.net.
Name Servers
Two name servers ns1.taoa.com and ns2.taoa.com handle the delegation for coursemaker.net.
coursemaker.net shares the same name server setup as other domains, for example mrdoherty.com, 5552a.com, kse66.com, cycy168.com and adachi-shiho.com.
Host names with one IP number:
ns1.taoa.com points to 8.217.124.76; ns2.taoa.com points to 47.253.200.33.