linux.college - robtex.com
linux.college
college
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.nic.college | ||||||
| NS | b.nic.college | ||||||
| NS | c.nic.college | ||||||
| NS | d.nic.college | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=3000462976 | ||||||
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSns1.digitalocean.com2019-12-13 → 2026-08-16 · 2 obs
● 2026-08-16 07:00:48
●NSns2.digitalocean.com2019-12-13 → 2026-08-16 · 2 obs
● 2026-08-16 07:00:48
●NSns3.digitalocean.com2019-12-13 → 2026-08-16 · 2 obs
● 2026-08-16 07:00:48
●A192.241.196.532019-12-13 → 2026-08-16 · 2 obs
● 2026-08-16 07:00:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| college | a.nic.college, b.nic.college, c.nic.college, d.nic.college | 8 records |
| linux.college | ns2.digitalocean.com, ns3.digitalocean.com, ns1.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.49.209
NS records: ns2.digitalocean.com, ns3.digitalocean.com, ns1.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linux.college (unsigned zone)
⏱️ Timing
Total: 218ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.241.196.53 |
| NS | 3 | ns1.digitalocean.com, ns2.digitalocean.com... |
| MX | 3 | mx2.zoho.com (pri: 20), mx.zoho.com (pri: 10)... |
| TXT | 1 | v=spf1 include:zoho.com ~all |
| SOA | 1 | ns1.digitalocean.com hostmaster.linux.co |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.nic.college, a.nic.college, b.nic.college...)
Analysis
IP Addresses
linux.college has exactly one IP address — 192.241.196.53.
Host names like ksm.sh are further examples that share IP numbers with linux.college.
Name Servers
linux.college carries NS records delegating to ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
linux.college partially shares its NS delegation with several other domains, including whitespace-tech.com, 1.0.0.4.8.d.e.0.0.0.0.0.0.0.0.0.0.d.0.0.2.0.0.0.0.c.0.b.3.0.a.2.ip6.arpa, 181.209.134.in-addr.arpa and two others.
ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com are three hostnames that each resolve to a pair of IP addresses: ns1.digitalocean.com to 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com to 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com to 172.64.49.209 and 2606:4700:52::ac40:31d1.
Mail Servers
linux.college uses three mail servers — mx2.zoho.com, mx3.zoho.com and mx.zoho.com.
At least some of the mail servers used by linux.college are shared with other domains: camthompson.ca, quickparentapp.com, ruduhome.net and two others among them.
Each of mx2.zoho.com, mx3.zoho.com and mx.zoho.com resolves to one IP address: mx2.zoho.com to 136.143.183.44, and both mx3.zoho.com and mx.zoho.com to 204.141.43.44.
mx3.zoho.com along with mx.zoho.com each resolve to 204.141.43.44 IP addresses.