oc.course.com - robtex.com
oc.course.com
course.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 69.32.208.74🇺🇸 RoadRunner69.32.208.0/22 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040 | ||||||
| NS | ns1x.cengage.net ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a1-49.akam.net ⚠️ Not in zone NS records | ||||||
| NS | a13-64.akam.net ⚠️ Not in zone NS records | ||||||
| NS | a14-65.akam.net ⚠️ Not in zone NS records | ||||||
| NS | dns1.p01.nsone.net ⚠️ Not in zone NS records | ||||||
| NS | dns2.p01.nsone.net ⚠️ Not in zone NS records 🔒 | ||||||
| NS | dns3.p01.nsone.net ⚠️ Not in zone NS records 🔒 | ||||||
| NS | ns2x.cengage.net ⚠️ Not in parent delegation | ||||||
| MX | mxa-0012df01.gslb.pphosted.com ⭐ | ||||||
| MX | mxb-0012df01.gslb.pphosted.com ⭐ | ||||||
| TXT | MS=ms17115631 | ||||||
| TXT | v=spf1 include:spf.cengage.com -all | ||||||
| SOA | ns1x.cengage.nethostmaster@ohcinmason.com serial=392 | ||||||
rank #641285 globally
rank #292884 in the tld
WOT: SAFE (94/100)
PTR for
Same first word
Similar names
DNS History
4 records (1 active, 3 former)
○NSns1.cengage.net2015-07-09 → 2016-04-27 · 4 obs
● 2015-07-09 05:08:26
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
○NSns2.cengage.net2015-07-09 → 2016-04-27 · 4 obs
● 2015-07-09 05:08:26
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
○A69.32.148.1272015-07-09 → 2016-04-27 · 4 obs
● 2015-07-09 05:08:26
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
● 2016-04-27 11:49:10
○ 2021-09-24 02:03:46
○ 2026-03-24 05:52:04
●A69.32.208.742021-09-24 → 2026-03-24 · 3 obs
○ 2016-04-27 11:49:10
● 2021-09-24 02:03:46
● 2026-03-24 05:52:04
● 2021-09-24 02:03:46
● 2026-03-24 05:52:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net... | - |
| course.com | dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net... | - |
✅ Authoritative Response
Server:2.22.230.64
NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net, a14-65.akam.net, a1-49.akam.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for course.com (unsigned zone)
⏱️ Timing
Total: 314ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 69.32.208.74 |
Analysis
IP Addresses
oc.course.com resolves to a single IP address: 69.32.208.74.
Other host names including orgb4me.net, supplychain-online.com, atomicdogpublishing.com, learntokey.com and centgage.com share IP numbers with oc.course.com.