coursz.com - robtex.com
coursz.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 212.92.105.215🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21 | ||||||
| NS | ns1.dnsnuts.com ⭐ | ||||||
| A | 74.63.219.250🇺🇸 Limestone Networks74.63.192.0/18 Inc. 400 S. Akard Street Dallas, TX 75202 US =20 | ||||||
| PTR | 250-219-63-74.static.reverse.impreza.host | ||||||
| NS | ns2.dnsnuts.com | ||||||
| A | 212.92.105.209🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21 | ||||||
| TXT | dbg: src: ds, acme: false | ||||||
| SOA | ns1.dnsnuts.comadmin@coursz.com 2026-07-14 #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=1784358332 | ||||||
Previously MX for
coursz.com |
Same first word
coursz.com |
Similar names
DNS History
15 records (3 active, 12 former)
●NSns1.dnsnuts.com2026-04-08 → 2026-07-18 · 3 obs
○ 2016-12-07 02:20:22
● 2026-04-08 18:19:48
● 2026-07-18 07:28:14
● 2026-04-08 18:19:48
● 2026-07-18 07:28:14
○NSns1.hostresolver.com2026-06-08 → 2026-06-08 · 4 obs
○ 2026-04-08 18:19:48
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
○NSns1.msbiznaa.arvixecloud.com2015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 04:01:12
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
●NSns2.dnsnuts.com2026-04-08 → 2026-07-18 · 3 obs
○ 2016-12-07 02:20:22
● 2026-04-08 18:19:48
● 2026-07-18 07:28:14
● 2026-04-08 18:19:48
● 2026-07-18 07:28:14
○NSns2.hostresolver.com2026-06-08 → 2026-06-08 · 4 obs
○ 2026-04-08 18:19:48
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
○NSns2.msbiznaa.arvixecloud.com2015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 04:01:12
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
○NSvps1495-1.fr.ns.planethoster.net2015-10-15 → 2016-12-07 · 5 obs
○ 2015-05-29 04:01:12
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
○NSvps1495.fr.ns.planethoster.net2015-10-15 → 2016-12-07 · 5 obs
○ 2015-05-29 04:01:12
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
○MXcoursz.com2015-05-29 → 2016-12-07 · 4 obs
● 2015-05-29 04:01:12
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
○A108.175.152.262015-05-29 → 2015-05-29 · 3 obs
● 2015-05-29 04:01:12
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
○ 2015-10-15 14:12:48
○ 2026-07-18 07:28:14
○A185.150.189.1662026-06-08 → 2026-06-08 · 4 obs
○ 2026-04-08 18:19:48
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
● 2026-06-08 07:13:56
○ 2026-06-21 13:21:24
○ 2026-07-18 07:28:14
○A185.22.109.982015-10-15 → 2016-12-07 · 5 obs
○ 2015-05-29 04:01:12
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
● 2015-10-15 14:12:48
● 2016-12-07 02:20:22
○ 2026-04-08 18:19:48
○ 2026-07-18 07:28:14
●A212.92.105.2152026-07-18 → 2026-07-18 · 2 obs
○ 2026-06-23 08:12:44
● 2026-07-18 07:28:14
● 2026-07-18 07:28:14
○A212.92.105.2192026-06-21 → 2026-06-21 · 4 obs
○ 2026-06-08 07:13:56
● 2026-06-21 13:21:24
○ 2026-06-23 08:12:44
○ 2026-07-18 07:28:14
● 2026-06-21 13:21:24
○ 2026-06-23 08:12:44
○ 2026-07-18 07:28:14
○A74.63.219.2542026-04-08 → 2026-06-23 · 5 obs
○ 2016-12-07 02:20:22
● 2026-04-08 18:19:48
○ 2026-06-08 07:13:56
● 2026-06-23 08:12:44
○ 2026-07-18 07:28:14
● 2026-04-08 18:19:48
○ 2026-06-08 07:13:56
● 2026-06-23 08:12:44
○ 2026-07-18 07:28:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coursz.com | ns1.dnsnuts.com, ns2.dnsnuts.com | 2 records |
✅ Authoritative Response
Server:212.92.105.209
NS records: ns1.dnsnuts.com, ns2.dnsnuts.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursz.com (unsigned zone)
⏱️ Timing
Total: 232ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.92.105.215 |
| NS | 2 | ns1.dnsnuts.com, ns2.dnsnuts.com |
| TXT | 1 | dbg: src: ds, acme: false |
| SOA | 1 | ns1.dnsnuts.com admin.coursz.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dnsnuts.com, ns2.dnsnuts.com)
Analysis
IP Addresses
coursz.com points to a single IP number: 212.92.105.215.
Additional host names — giffio.com, www.femdommoviestube.com, ns1.harranajans.com and two others — share IP numbers with coursz.com.
Name Servers
coursz.com is served by two delegated name servers, ns1.dnsnuts.com and ns2.dnsnuts.com.
coursz.com shares its name server setup with other domains, including theimforum.com, seriesseeker.com, netcine.tv and two others.
Each of ns1.dnsnuts.com and ns2.dnsnuts.com has one IP address: ns1.dnsnuts.com uses 74.63.219.250 and ns2.dnsnuts.com uses 212.92.105.209.