cursomaster.online - robtex.com
cursomaster.online
| DNSSEC | ⚠️ Not signed | ||||||
| A | 209.58.144.131🇺🇸 LEASEWEB-US209.58.144.0/20 Leaseweb USA, Inc. DAL-10 US | ||||||
| PTR | serverni.koryfi.com | ||||||
| NS | ns.koryfiserver.com ⭐ | ||||||
| A | 15.204.245.74🇺🇸 OVH15.204.128.0/17 Hosting route | ||||||
| PTR | ns.koryfiserver.com | ||||||
| NS | ns.koryfiserver.net | ||||||
| A | 108.62.122.244🇺🇸 LEASEWEB-US108.62.120.0/22 Leaseweb USA, Inc. | ||||||
| PTR | ns.koryfiserver.net | ||||||
| NS | ns.koryfiserver.org | ||||||
| A | 23.82.16.249🇺🇸 AS720323.82.16.0/21 Leaseweb USA, Inc. | ||||||
| PTR | ns.koryfiserver.org | ||||||
| MX | cursomaster.online ⭐ | ||||||
| A | 209.58.144.131🇺🇸 LEASEWEB-US209.58.144.0/20 Leaseweb USA, Inc. DAL-10 US | ||||||
| PTR | serverni.koryfi.com | ||||||
| TXT | v=spf1 +a +mx include:_spf.koryfi.com ~all | ||||||
| SOA | ns.koryfiserver.comserver@mzeronetwork.com 2025-12-11 #1 | ||||||
online
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1785821321 | ||||||
MX for
cursomaster.online |
Subdomains
www.cursomaster.online |
Same first word
cursomaster.online |
cursomaster.com |
Similar names
DNS History
10 records (5 active, 5 former)
○NSdns1.sered.net2020-03-16 → 2020-03-16 · 3 obs
○ 2026-06-21 12:31:36
○ 2026-08-04 05:55:40
○NSdns2.sered.net2020-03-16 → 2020-03-16 · 3 obs
○ 2026-06-21 12:31:36
○ 2026-08-04 05:55:40
○NSdns3.sered.net2020-03-16 → 2020-03-16 · 3 obs
○ 2026-06-21 12:31:36
○ 2026-08-04 05:55:40
○NSdns4.sered.net2020-03-16 → 2020-03-16 · 3 obs
○ 2026-06-21 12:31:36
○ 2026-08-04 05:55:40
●NSns.koryfiserver.com2026-06-21 → 2026-08-04 · 3 obs
● 2026-06-21 12:31:36
● 2026-08-04 05:55:40
●NSns.koryfiserver.net2026-06-21 → 2026-08-04 · 3 obs
● 2026-06-21 12:31:36
● 2026-08-04 05:55:40
●NSns.koryfiserver.org2026-06-21 → 2026-08-04 · 3 obs
● 2026-06-21 12:31:36
● 2026-08-04 05:55:40
●MXcursomaster.online2020-03-16 → 2026-08-04 · 2 obs
● 2026-08-04 05:55:40
●A209.58.144.1312026-06-21 → 2026-08-04 · 3 obs
● 2026-06-21 12:31:36
● 2026-08-04 05:55:40
○A51.38.62.1832020-03-16 → 2020-03-16 · 3 obs
○ 2026-06-21 12:31:36
○ 2026-08-04 05:55:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| online | ns10.trs-dns.org, ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.info | 8 records |
| cursomaster.online | ns.koryfiserver.com, ns.koryfiserver.net, ns.koryfiserver.org | - |
✅ Authoritative Response
Server:15.204.245.74
NS records: ns.koryfiserver.com, ns.koryfiserver.net, ns.koryfiserver.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cursomaster.online (unsigned zone)
⏱️ Timing
Total: 493ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 209.58.144.131 |
| NS | 3 | ns.koryfiserver.net, ns.koryfiserver.com... |
| MX | 1 | cursomaster.online (pri: 0) |
| TXT | 1 | v=spf1 +a +mx include:_spf.koryfi.com ~a |
| SOA | 1 | ns.koryfiserver.com server.mzeronetwork. |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)
Analysis
Hierarchy
www.cursomaster.online is a subdomain of cursomaster.online.
Mail Server Role
cursomaster.online acts as its own mail server.
IP Addresses
cursomaster.online points to a single IP number: 209.58.144.131.
Additional host names — serverni.koryfi.com, deliciasalacarta.com, touchyourmind.com and two others — share IP numbers with cursomaster.online.
Name Servers
Three name servers are authoritative for cursomaster.online: ns.koryfiserver.com, ns.koryfiserver.net and ns.koryfiserver.org.
The name servers of cursomaster.online overlap at least partially with those of other domains — among them conoce.info, marketingdigitalpro.online, charlasweb.com and two more.
These name servers commonly co-occur with the name servers ns3.koryfi.com, ns4.koryfi.com, ns5.koryfi.com and ns6.koryfi.com.
Three hostnames, one IP address apiece: ns.koryfiserver.com resolves to 15.204.245.74, ns.koryfiserver.net resolves to 108.62.122.244 and ns.koryfiserver.org resolves to 23.82.16.249.
Mail Servers
cursomaster.online has a single mail server: cursomaster.online itself.
There is one IP number for cursomaster.online: 209.58.144.131.