startup-course.com - robtex.com
startup-course.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.210.46.30🇰🇿 PSKZ-ALA195.210.46.0/24 PS Internet Company LLC Network | ||||||
| PTR | srv-plesk45.ps.kz | ||||||
| NS | ns-canada.topdns.com ⭐ | ||||||
| A | 109.201.142.225🇳🇱 NFORCE109.201.128.0/19 NFOrce Entertainment BV - 109.201.128.0/19 route | ||||||
| PTR | ns-canada.topdns.com | ||||||
| NS | ns-uk.topdns.com | ||||||
| A | 77.247.183.137🇳🇱 NFORCE77.247.176.0/21 NFOrce Entertainment BV - route 77.247.176.0/21 | ||||||
| PTR | ns-uk.topdns.com | ||||||
| NS | ns-usa.topdns.com | ||||||
| A | 143.198.68.197🇺🇸 DIGITALOCEAN143.198.64.0/20 DigitalOcean | ||||||
| A | 161.35.225.48🇺🇸 DIGITALOCEAN161.35.224.0/20 DigitalOcean | ||||||
| SOA | ns-canada.topdns.comhostmaster@topdns.com 2024-08-13 #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=1774728127 | ||||||
Same first word
startup-course.com |
DNS History
12 records (4 active, 8 former)
○NSdns1.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○NSdns2.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
●NSns-canada.topdns.com2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 18:26:10
● 2026-03-28 20:07:18
●NSns-uk.topdns.com2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 18:26:10
● 2026-03-28 20:07:18
●NSns-usa.topdns.com2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 18:26:10
● 2026-03-28 20:07:18
○MXeforward1.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○MXeforward2.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○MXeforward3.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○MXeforward4.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○MXeforward5.registrar-servers.com2019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
○A162.255.119.1372019-02-14 → 2019-02-14 · 3 obs
○ 2026-03-28 18:26:10
○ 2026-03-28 20:07:18
●A195.210.46.302026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 18:26:10
● 2026-03-28 20:07:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| startup-course.com | ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com | 4 records |
✅ Authoritative Response
Server:109.201.142.225
NS records: ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for startup-course.com (unsigned zone)
⏱️ Timing
Total: 229ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.210.46.30 |
| NS | 3 | ns-canada.topdns.com, ns-usa.topdns.com... |
| SOA | 1 | ns-canada.topdns.com hostmaster.topdns.c |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns-canada.topdns.com, ns-usa.topdns.com, ns-usa.topdns.com...)
Analysis
IP Addresses
startup-course.com points to a single IP: 195.210.46.30.
Other host names, for instance mail.vkusvil.ru, mail.avia.by, 1sentyabrya.ru, potrebiteli.ru and hik.kz share IP numbers with startup-course.com.
Name Servers
startup-course.com is delegated to three name servers: ns-canada.topdns.com, ns-uk.topdns.com and ns-usa.topdns.com.
startup-course.com partially shares name servers with other domains; examples include toutampon.com, mesdecos.com, sasu-sas.com, ral.us and telephone-rose.com.
Two IPs for a host:
ns-usa.topdns.com points to 143.198.68.197 and 161.35.225.48.
One IP per host:
ns-canada.topdns.com points to 109.201.142.225.
ns-uk.topdns.com points to 77.247.183.137.