openlearning.cc - robtex.com
openlearning.cc
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.digitalocean.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| A | 172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| NS | ns2.digitalocean.com | ||||||
| A | 2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| A | 172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| NS | ns3.digitalocean.com | ||||||
| A | 2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| A | 172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| TXT | google-site-verification = kiRok_W2eob7AzwSVNx9xt0qYzA1O5lETgHvGyC42vI | ||||||
| SOA | ns1.digitalocean.comhostmaster@openlearning.cc serial=0 | ||||||
cc
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1776971942 | ||||||
Subdomains
Same first word
Similar names
DNS History
15 records (3 active, 12 former)
○NSdns1.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○NSdns2.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
●NSns1.digitalocean.com2026-03-28 → 2026-04-23 · 3 obs
○ 2019-02-12 11:25:38
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
●NSns2.digitalocean.com2026-03-28 → 2026-04-23 · 3 obs
○ 2019-02-12 11:25:38
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
●NSns3.digitalocean.com2026-03-28 → 2026-04-23 · 3 obs
○ 2019-02-12 11:25:38
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
● 2026-03-28 07:15:58
● 2026-04-23 19:30:44
○MXeforward1.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○MXeforward2.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○MXeforward3.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○MXeforward4.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○MXeforward5.registrar-servers.com2019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○A185.199.108.1532019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○A185.199.109.1532019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○A185.199.110.1532019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○A185.199.111.1532019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○A192.64.119.62019-02-12 → 2019-02-12 · 3 obs
● 2019-02-12 11:25:38
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
○ 2026-03-28 07:15:58
○ 2026-04-23 19:30:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cc | ac1.nstld.com, ac2.nstld.com, ac3.nstld.com, ac4.nstld.com | - |
| openlearning.cc | ns1.digitalocean.com, ns3.digitalocean.com, ns2.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.53.21
NS records: ns1.digitalocean.com, ns3.digitalocean.com, ns2.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openlearning.cc (unsigned zone)
⏱️ Timing
Total: 164ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns2.digitalocean.com, ns3.digitalocean.com... |
| TXT | 1 | google-site-verification = kiRok_W2eob7A |
| SOA | 1 | ns1.digitalocean.com hostmaster.openlear |
Analysis
Hierarchy
openlearning.cc is a parent of www.openlearning.cc, vps.openlearning.cc and wiki.openlearning.cc.
Name Servers
openlearning.cc is delegated to name servers ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
openlearning.cc at least partially shares name servers with other domains such as medicorp.sk, buyshield.com, visbending.is, kvsn.be and iconsultu.dk.
Host names with two IP numbers:
ns1.digitalocean.com points to 2606:4700:52::ac40:34d2 and 172.64.52.210.
ns2.digitalocean.com points to 2606:4700:5a::ac40:3515 and 172.64.53.21.
ns3.digitalocean.com points to 2606:4700:52::ac40:31d1 and 172.64.49.209.