ifcourse.com - dns.ninja
ifcourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 135.181.228.222🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC | ||||||
| PTR | static.222.228.181.135.clients.your-server.de | ||||||
| NS | ns1.ifcourse.com ⭐ | ||||||
| NS | ns1.stufio.net ⚠️ Not in zone NS records | ||||||
| A | 135.181.228.236🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC | ||||||
| PTR | static.236.228.181.135.clients.your-server.de | ||||||
| NS | ns2.stufio.net ⚠️ Not in zone NS records | ||||||
| A | 51.79.20.191🇨🇦 OVH51.79.0.0/17 Hosting route | ||||||
| PTR | ns566801.ip-51-79-20.net | ||||||
| NS | ns3.stufio.net ⚠️ Not in zone NS records | ||||||
| A | 5.9.86.190🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | static.190.86.9.5.clients.your-server.de | ||||||
| SOA | ns1.ifcourse.comhostmaster@ifcourse.com serial=1782569219 | ||||||
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=1782567530 | ||||||
Same first word
Similar names
corifeus.com |
sourcefi.com |
sourceif.com |
coursefi.com |
focusrei.com |
ceisufro.cl |
irefocus.com |
frecious.herokuapp.com |
iecfusor.com |
frecious.nl |
fisource.com |
frecious.jp |
firecous.com |
fiosecru.com.de |
fisource.net |
DNS History
19 records (5 active, 14 former)
○NSf1g1ns1.dnspod.net2015-08-23 → 2016-04-14 · 4 obs
● 2015-08-23 02:32:10
● 2016-04-14 08:39:32
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-04-14 08:39:32
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
○NSf1g1ns2.dnspod.net2015-08-23 → 2016-04-14 · 4 obs
● 2015-08-23 02:32:10
● 2016-04-14 08:39:32
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-04-14 08:39:32
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
○NSgrace.ns.cloudflare.com2020-03-19 → 2020-03-19 · 4 obs
○ 2016-04-14 08:39:32
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
●NSns1.ifcourse.com2026-03-28 → 2026-06-27 · 3 obs
○ 2020-03-19 18:50:24
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
●NSns1.stufio.net2026-03-28 → 2026-06-27 · 3 obs
○ 2020-03-19 18:50:24
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
●NSns2.stufio.net2026-03-28 → 2026-06-27 · 3 obs
○ 2020-03-19 18:50:24
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
●NSns3.stufio.net2026-03-28 → 2026-06-27 · 3 obs
○ 2020-03-19 18:50:24
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
○NStrey.ns.cloudflare.com2020-03-19 → 2020-03-19 · 4 obs
○ 2016-04-14 08:39:32
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
○A104.27.168.2142020-03-19 → 2020-03-19 · 4 obs
○ 2016-12-24 02:46:26
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
○A104.27.169.2142020-03-19 → 2020-03-19 · 4 obs
○ 2016-12-24 02:46:26
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
●A135.181.228.2222026-03-28 → 2026-06-27 · 3 obs
○ 2020-03-19 18:50:24
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
● 2026-03-28 14:08:46
● 2026-06-27 14:07:00
○A2606:4700:3031::681b:a9d62020-03-19 → 2020-03-19 · 4 obs
○ 2016-12-24 02:46:26
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
○A2606:4700:3037::681b:a8d62020-03-19 → 2020-03-19 · 4 obs
○ 2016-12-24 02:46:26
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
● 2020-03-19 18:50:24
○ 2026-03-28 14:08:46
○ 2026-06-27 14:07:00
○A36.51.255.1322016-12-24 → 2016-12-24 · 4 obs
○ 2016-04-14 08:39:32
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
○A36.51.255.1362015-08-23 → 2016-04-14 · 4 obs
● 2015-08-23 02:32:10
● 2016-04-14 08:39:32
○ 2016-12-24 02:46:26
○ 2026-06-27 14:07:00
● 2016-04-14 08:39:32
○ 2016-12-24 02:46:26
○ 2026-06-27 14:07:00
○A36.51.255.1422016-12-24 → 2016-12-24 · 4 obs
○ 2016-04-14 08:39:32
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
○CNAMEcname.saebbs.com2016-12-24 → 2016-12-24 · 4 obs
○ 2016-04-14 08:39:32
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
○CNAMEjp.cname.cloudbbs.org2015-08-23 → 2016-04-14 · 4 obs
● 2015-08-23 02:32:10
● 2016-04-14 08:39:32
○ 2016-12-24 02:46:26
○ 2026-06-27 14:07:00
● 2016-04-14 08:39:32
○ 2016-12-24 02:46:26
○ 2026-06-27 14:07:00
○CNAMEjp.cname.saebbs.com2016-12-24 → 2016-12-24 · 4 obs
○ 2016-04-14 08:39:32
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
● 2016-12-24 02:46:26
○ 2020-03-19 18:50:24
○ 2026-06-27 14:07:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ifcourse.com | ns1.stufio.net, ns2.stufio.net, ns3.stufio.net | - |
✅ Authoritative Response
Server:5.9.86.190
NS records: ns1.stufio.net, ns2.stufio.net, ns3.stufio.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ifcourse.com (unsigned zone)
⏱️ Timing
Total: 3014ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 135.181.228.222 |
| SOA | 1 | ns1.ifcourse.com hostmaster.ifcourse.com |
Analysis
IP Addresses
ifcourse.com has exactly one IP address — 135.181.228.222.
spahot.com, dorely.com, musyka.com plus two other host names have IP numbers in common with ifcourse.com.
Name Servers
Four name servers handle the delegation for ifcourse.com: ns1.ifcourse.com, ns1.stufio.net, ns2.stufio.net and ns3.stufio.net.
ifcourse.com shares at least some of its name servers with other domains, including routeri.com, mecombo.com, melixi.com and two others.
These name servers are frequently seen alongside ns1.routeri.com, ns1.mecombo.com, ns1.melixi.com and 4 other name servers.
Three hostnames, one IP address apiece: ns1.stufio.net resolves to 135.181.228.236, ns2.stufio.net resolves to 51.79.20.191 and ns3.stufio.net resolves to 5.9.86.190.