coursefolder.net - robtex.com
coursefolder.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.55.238.172🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | pole.hostitbro.com | ||||||
| NS | dns21.hostitbro.com ⭐ | ||||||
| A | 162.55.238.172🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | pole.hostitbro.com | ||||||
| NS | dns22.hostitbro.com | ||||||
| A | 162.55.238.172🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | pole.hostitbro.com | ||||||
| MX | coursefolder.net ⭐ | ||||||
| A | 162.55.238.172🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | pole.hostitbro.com | ||||||
| TXT | v=spf1 +a +mx +ip4:162.55.238.172 ~all | ||||||
| SOA | dns21.hostitbro.comroot@pole.hostitbro.com 2026-06-13 #14 | ||||||
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=1784989767 | ||||||
MX for
coursefolder.net |
Same first word
coursefolder.net |
Similar names
DNS History
8 records (4 active, 4 former)
●NSdns21.hostitbro.com2026-07-10 → 2026-07-25 · 3 obs
● 2026-07-10 20:21:18
● 2026-07-25 14:58:36
●NSdns22.hostitbro.com2026-07-10 → 2026-07-25 · 3 obs
● 2026-07-10 20:21:18
● 2026-07-25 14:58:36
○NSns1.cp-46.hostgatorwebservers.com2026-02-21 → 2026-06-03 · 4 obs
● 2026-06-03 15:31:00
○ 2026-07-10 20:21:18
○ 2026-07-25 14:58:36
○NSns2.cp-46.hostgatorwebservers.com2026-02-21 → 2026-06-03 · 4 obs
● 2026-06-03 15:31:00
○ 2026-07-10 20:21:18
○ 2026-07-25 14:58:36
●MXcoursefolder.net2026-07-10 → 2026-07-25 · 3 obs
● 2026-07-10 20:21:18
● 2026-07-25 14:58:36
○MXmail.coursefolder.net2026-02-21 → 2026-04-18 · 7 obs
○ 2026-02-25 16:44:04
○ 2026-02-26 02:54:52
● 2026-03-11 03:39:12
● 2026-04-18 12:06:42
○ 2026-04-18 13:04:06
○ 2026-07-25 14:58:36
●A162.55.238.1722026-07-10 → 2026-07-25 · 3 obs
● 2026-07-10 20:21:18
● 2026-07-25 14:58:36
○A208.91.199.1082026-02-21 → 2026-04-18 · 7 obs
○ 2026-02-25 16:44:04
○ 2026-02-26 02:54:52
● 2026-03-11 03:39:12
● 2026-04-18 12:06:42
○ 2026-04-18 13:04:06
○ 2026-07-25 14:58:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net... | - |
| coursefolder.net | dns21.hostitbro.com, dns22.hostitbro.com | - |
✅ Authoritative Response
Server:162.55.238.172
NS records: dns21.hostitbro.com, dns22.hostitbro.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursefolder.net (unsigned zone)
⏱️ Timing
Total: 628ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.55.238.172 |
| NS | 2 | dns22.hostitbro.com, dns21.hostitbro.com |
| MX | 1 | coursefolder.net (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:162.55.238.172 ~all |
| SOA | 1 | dns21.hostitbro.com root.pole.hostitbro. |
Analysis
Mail Server Role
coursefolder.net serves as a mail server for coursefolder.net.
IP Addresses
coursefolder.net has exactly one IP address — 162.55.238.172.
hveer.com, shahinvestment.com, carefullliving.com plus two other host names have IP numbers in common with coursefolder.net.
Name Servers
The NS records for coursefolder.net delegate to dns21.hostitbro.com and dns22.hostitbro.com.
The name server configuration of coursefolder.net is shared with other domains, for instance mythtools.com, cchheathcare.com, nsgtrade.com and two others.
The name servers for coursefolder.net are at least partly shared with other domains such as bivetyhc.com, hveer.com, gmind.in and sbpsmtrust.com.
It is common to see these name servers used together with name servers ns1.cprapid.com and ns2.cprapid.com.
Each of dns21.hostitbro.com and dns22.hostitbro.com points to exactly one IP address: 162.55.238.172.
dns21.hostitbro.com and dns22.hostitbro.com each have 162.55.238.172 IP addresses.
Mail Servers
coursefolder.net uses exactly one mail server, which is coursefolder.net.
coursefolder.net resolves to 162.55.238.172 and no other IP number.