coursy.net - robtex.com
coursy.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.81.254.240🇳🇱 RedfoxCloud45.81.254.0/24 www.redfoxcloud.com | ||||||
| PTR | sh01.rfox.cloud | ||||||
| NS | ns1.rfox.cloud ⭐ | ||||||
| A | 45.81.254.240🇳🇱 RedfoxCloud45.81.254.0/24 www.redfoxcloud.com | ||||||
| PTR | sh01.rfox.cloud | ||||||
| NS | ns2.rfox.cloud | ||||||
| A | 45.81.254.250🇳🇱 RedfoxCloud45.81.254.0/24 www.redfoxcloud.com | ||||||
| PTR | ns2.rfox.cloud | ||||||
| MX | mail.coursy.net ⭐ | ||||||
| A | 45.81.254.240🇳🇱 RedfoxCloud45.81.254.0/24 www.redfoxcloud.com | ||||||
| PTR | sh01.rfox.cloud | ||||||
| TXT | v=spf1 a mx ip4:45.81.254.240 ~all | ||||||
| SOA | ns1.rfox.cloudhostmaster@coursy.net 2026-01-20 #0 | ||||||
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=1774590992 | ||||||
Subdomains
mail.coursy.net |
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
○NSks4.kalanda.net2017-01-04 → 2017-12-25 · 4 obs
● 2017-12-25 22:39:26
○ 2026-02-27 22:58:32
○ 2026-03-27 06:12:54
○NSks8.kalanda.net2017-01-04 → 2017-12-25 · 4 obs
● 2017-12-25 22:39:26
○ 2026-02-27 22:58:32
○ 2026-03-27 06:12:54
●NSns1.rfox.cloud2026-02-27 → 2026-03-27 · 3 obs
● 2026-02-27 22:58:32
● 2026-03-27 06:12:54
●NSns2.rfox.cloud2026-02-27 → 2026-03-27 · 3 obs
● 2026-02-27 22:58:32
● 2026-03-27 06:12:54
●MXmail.coursy.net2017-01-04 → 2026-03-27 · 2 obs
● 2026-03-27 06:12:54
○A185.43.44.542017-01-04 → 2017-12-25 · 4 obs
● 2017-12-25 22:39:26
○ 2026-02-27 22:58:32
○ 2026-03-27 06:12:54
●A45.81.254.2402026-02-27 → 2026-03-27 · 3 obs
● 2026-02-27 22:58:32
● 2026-03-27 06:12:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | g.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net... | - |
| coursy.net | ns1.rfox.cloud, ns2.rfox.cloud | - |
✅ Authoritative Response
Server:45.81.254.250
NS records: ns1.rfox.cloud, ns2.rfox.cloud
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursy.net (unsigned zone)
⏱️ Timing
Total: 511ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.81.254.240 |
| NS | 2 | ns2.rfox.cloud, ns1.rfox.cloud |
| MX | 1 | mail.coursy.net (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:45.81.254.240 ~all |
| SOA | 1 | ns1.rfox.cloud hostmaster.coursy.net |
Analysis
Hierarchy
coursy.net is the parent of mail.coursy.net.
IP Addresses
coursy.net resolves to a single IP address: 45.81.254.240.
Other host names including automagnatas.lt, ns1.rfox.cloud, ns3.rfox.cloud.nogalosa.lt, avita.lt and mail.istorijai.lt share IP numbers with coursy.net.
Name Servers
coursy.net's delegation uses two name servers, ns1.rfox.cloud and ns2.rfox.cloud.
coursy.net shares the same name server setup as other domains, for example 252.81.45.in-addr.arpa, rls.lt, datahost.lt, nogalosa.lt and istorijai.lt.
Host names with a single IP:
ns1.rfox.cloud points to 45.81.254.240.
ns2.rfox.cloud points to 45.81.254.250.
Mail Servers
coursy.net is handled by a single mail server, mail.coursy.net.
mail.coursy.net points to a single IP: 45.81.254.240.