openedcourse.com - dns.ninja
openedcourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 66.96.149.32EIG-2987366.96.128.0/18 | ||||||
| NS | ns1.dotster.com ⭐ | ||||||
| A | 172.64.52.250Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.dotster.com | ||||||
| A | 172.64.53.155Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mx.openedcourse.com ⭐ | ||||||
| TXT | v=spf1 ip4:66.96.128.0/18 include:websitewelcome.com ?all | ||||||
| SOA | ns1.dotster.comdnsadmin@dotster.com 2012-08-30 #49 | ||||||
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=1783548312 | ||||||
Subdomains
mx.openedcourse.com |
Same first word
openedcourse.net |
openedcourse.com |
openedcourse.org |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.dotster.com2015-06-10 → 2026-07-08 · 2 obs
● 2015-06-10 08:28:34
● 2026-07-08 22:22:22
● 2026-07-08 22:22:22
●NSns2.dotster.com2015-06-10 → 2026-07-08 · 2 obs
● 2015-06-10 08:28:34
● 2026-07-08 22:22:22
● 2026-07-08 22:22:22
●MXmx.openedcourse.com2015-06-10 → 2026-07-08 · 2 obs
● 2015-06-10 08:28:34
● 2026-07-08 22:22:22
● 2026-07-08 22:22:22
●A66.96.149.322016-04-07 → 2026-07-08 · 3 obs
○ 2016-01-20 06:28:56
● 2016-04-07 07:00:48
● 2026-07-08 22:22:22
● 2016-04-07 07:00:48
● 2026-07-08 22:22:22
○A66.96.161.1462015-06-10 → 2016-01-20 · 4 obs
● 2015-06-10 08:28:34
● 2016-01-20 06:28:56
○ 2016-04-07 07:00:48
○ 2026-07-08 22:22:22
● 2016-01-20 06:28:56
○ 2016-04-07 07:00:48
○ 2026-07-08 22:22:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net... | - |
| openedcourse.com | ns1.dotster.com, ns2.dotster.com | 2 records |
✅ Authoritative Response
Server:172.64.52.250
NS records: ns1.dotster.com, ns2.dotster.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openedcourse.com (unsigned zone)
⏱️ Timing
Total: 372ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 66.96.149.32 |
| NS | 2 | ns2.dotster.com, ns1.dotster.com |
| MX | 1 | mx.openedcourse.com (pri: 30) |
| TXT | 1 | v=spf1 ip4:66.96.128.0/18 include:websit |
| SOA | 1 | ns1.dotster.com dnsadmin.dotster.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dotster.com, ns2.dotster.com)
Analysis
Hierarchy
openedcourse.com is a parent domain of mx.openedcourse.com.
IP Addresses
openedcourse.com resolves to one IP address: 66.96.149.32.
Name Servers
openedcourse.com is delegated to two name servers: ns1.dotster.com and ns2.dotster.com.
ns1.dotster.com and ns2.dotster.com each resolve to one IP number: ns1.dotster.com points to 172.64.52.250 and ns2.dotster.com points to 172.64.53.155.
Mail Servers
Mail for openedcourse.com is handled by a single mail server, mx.openedcourse.com.