course.guide - robtex.com
course.guide
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.dan.com ⭐ | ||||||
| A | 2603:5:2125::43🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.dan.com | ||||||
| A | 97.74.98.67🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.dan.com | ||||||
| NS | ns2.dan.com | ||||||
| A | 2603:5:2225::43🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.dan.com | ||||||
| A | 173.201.66.67🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.dan.com | ||||||
| NS | verification-c7kofkq4.ns3.dan.hosting ⚠️ Not in zone NS records | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| SOA | ns1.dan.comdns@jomax.net 2025-10-01 #0 | ||||||
guide
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.guide ⭐ | ||||||
| NS | v0n1.nic.guide | ||||||
| NS | v0n2.nic.guide | ||||||
| NS | v0n3.nic.guide | ||||||
| NS | v2n0.nic.guide | ||||||
| NS | v2n1.nic.guide | ||||||
| SOA | v0n0.nic.guidehostmaster@donuts.email serial=1784724476 | ||||||
Previously MX for
course.guide |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.dan.com2026-02-24 → 2026-07-22 · 3 obs
● 2026-02-24 15:52:16
● 2026-07-22 13:39:12
○NSns1.supportedns.com2016-12-10 → 2017-09-06 · 4 obs
● 2017-09-06 14:59:04
○ 2026-02-24 15:52:16
○ 2026-07-22 13:39:12
●NSns2.dan.com2026-02-24 → 2026-07-22 · 3 obs
● 2026-02-24 15:52:16
● 2026-07-22 13:39:12
○NSns2.supportedns.com2016-12-10 → 2017-09-06 · 4 obs
● 2017-09-06 14:59:04
○ 2026-02-24 15:52:16
○ 2026-07-22 13:39:12
○NSns3.supportedns.com2016-12-10 → 2017-09-06 · 4 obs
● 2017-09-06 14:59:04
○ 2026-02-24 15:52:16
○ 2026-07-22 13:39:12
●NSverification-c7kofkq4.ns3.dan.hosting2026-02-24 → 2026-07-22 · 3 obs
● 2026-02-24 15:52:16
● 2026-07-22 13:39:12
○MXcourse.guide2016-12-10 → 2017-09-06 · 4 obs
● 2017-09-06 14:59:04
○ 2026-02-24 15:52:16
○ 2026-07-22 13:39:12
●A13.248.169.482026-02-24 → 2026-07-22 · 3 obs
● 2026-02-24 15:52:16
● 2026-07-22 13:39:12
○A173.248.188.52016-12-10 → 2017-09-06 · 4 obs
● 2017-09-06 14:59:04
○ 2026-02-24 15:52:16
○ 2026-07-22 13:39:12
●A76.223.54.1462026-02-24 → 2026-07-22 · 3 obs
● 2026-02-24 15:52:16
● 2026-07-22 13:39:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| guide | v0n1.nic.guide, v2n1.nic.guide, v0n3.nic.guide, v0n0.nic.guide... | 12 records |
| course.guide | ns1.dan.com, ns2.dan.com, verification-c7kofkq4.ns3.dan.hosting | - |
✅ Authoritative Response
Server:97.74.98.67
NS records: ns1.dan.com, ns2.dan.com, verification-c7kofkq4.ns3.dan.hosting
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for course.guide (unsigned zone)
⏱️ Timing
Total: 4613ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns1.dan.com, ns2.dan.com |
| SOA | 1 | ns1.dan.com dns.jomax.net |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n1.nic.guide, v0n1.nic.guide, v2n1.nic.guide...)
Analysis
IP Addresses
course.guide directs to two IP numbers, 13.248.169.48 and 76.223.54.146
Two other host names, along with rxgb.com, pilpet.com and hctg.org, also share IP numbers with course.guide.
Name Servers
course.guide carries NS records delegating to ns1.dan.com, ns2.dan.com and verification-c7kofkq4.ns3.dan.hosting.
course.guide shares at least some of its name servers with other domains, including ns5489.verify.hn, mail.testbeamer.de, ydhya.com and two others.
These name servers are frequently paired with the name servers ns1.undeveloped.com, ns2.undeveloped.com and verification-5y36myop.ns3.dan.hosting.
ns1.dan.com, ns2.dan.com and verification-c7kofkq4.ns3.dan.hosting are three hostnames that each resolve to a pair of IP addresses: ns1.dan.com to 97.74.98.67 and 2603:5:2125::43, ns2.dan.com to 173.201.66.67 and 2603:5:2225::43, and verification-c7kofkq4.ns3.dan.hosting to 13.248.169.48 and 76.223.54.146.