courseni.com - robtex.com
courseni.com
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=1787229264 | ||||||
Same first word
courseni.com |
Similar names
Previous names
Next names
DNS History
9 records (8 active, 1 former)
●NSns27.domaincontrol.com2020-02-23 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●NSns28.domaincontrol.com2020-02-23 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●MXalt1.aspmx.l.google.com2026-08-19 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●MXalt2.aspmx.l.google.com2026-08-19 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●MXalt3.aspmx.l.google.com2026-08-19 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●MXalt4.aspmx.l.google.com2026-08-19 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●MXaspmx.l.google.com2026-08-19 → 2026-08-20 · 2 obs
● 2026-08-20 13:03:08
●A3.66.64.112026-08-19 → 2026-08-20 · 3 obs
● 2026-08-19 07:33:12
● 2026-08-20 13:03:08
○A50.63.202.512020-02-23 → 2020-02-23 · 3 obs
○ 2026-08-19 07:33:12
○ 2026-08-20 13:03:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| courseni.com | ns27.domaincontrol.com, ns28.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.71.14
NS records: ns27.domaincontrol.com, ns28.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseni.com (unsigned zone)
⏱️ Timing
Total: 289ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.66.64.11 |
| NS | 2 | ns27.domaincontrol.com, ns28.domaincontrol.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 2 | google-site-verification=zDKxAmnMZ2Wjz8B, v=spf1 include:dc-aa8e722993._spfm.cours |
| SOA | 1 | ns27.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns27.domaincontrol.com, ns27.domaincontrol.com, ns28.domaincontrol.com...)
Analysis
IP Addresses
courseni.com directs to one IP number, which is 3.66.64.11.
Name Servers
DNS delegation for courseni.com points to two name servers: ns27.domaincontrol.com and ns28.domaincontrol.com.
courseni.com has the same name server delegation as a number of other domains, such as starbetsx.shop, svden.com, whtwrks.com and two more.
courseni.com has partial name server overlap with other domains, including tolucafc.com.
ns27.domaincontrol.com directs to 97.74.103.14 and 2603:5:2171::e. ns28.domaincontrol.com directs to 173.201.71.14 and 2603:5:2271::e. Each host name carries two IP addresses.
Mail Servers
Mail for courseni.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
courseni.com shares at least some of its mail servers with other domains — for example www.obrkarta.ru, trumbullps.net, wyldeinternational.com and two more.
It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.
Hosts with two IP numbers each:
aspmx.l.google.com has two IP addresses: 142.250.31.27 and 2607:f8b0:4004:c21::1b.
alt1.aspmx.l.google.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com has two IP addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.