courseweb.org - dns.ninja
courseweb.org
| 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 | ||||||
| SOA | ns1.dan.comdns@jomax.net 2025-10-01 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786128017 | ||||||
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
●NSns1.dan.com2026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 09:00:42
● 2026-08-07 19:26:38
●NSns2.dan.com2026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 09:00:42
● 2026-08-07 19:26:38
○NSns3.worldnic.com2015-07-21 → 2017-05-22 · 4 obs
● 2017-05-22 01:35:06
○ 2026-03-29 09:00:42
○ 2026-08-07 19:26:38
○NSns4.worldnic.com2015-07-21 → 2017-05-22 · 4 obs
● 2017-05-22 01:35:06
○ 2026-03-29 09:00:42
○ 2026-08-07 19:26:38
○MXp.webcom.ctmail.com2016-01-15 → 2017-05-22 · 4 obs
● 2017-05-22 01:35:06
○ 2026-03-29 09:00:42
○ 2026-08-07 19:26:38
●A13.248.169.482026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 09:00:42
● 2026-08-07 19:26:38
○A205.178.189.1292015-07-21 → 2017-05-22 · 4 obs
● 2017-05-22 01:35:06
○ 2026-03-29 09:00:42
○ 2026-08-07 19:26:38
●A76.223.54.1462026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 09:00:42
● 2026-08-07 19:26:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| courseweb.org | ns1.dan.com, ns2.dan.com | - |
✅ Authoritative Response
Server:97.74.98.67
NS records: ns1.dan.com, ns2.dan.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseweb.org (unsigned zone)
⏱️ Timing
Total: 343ms | 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 |
Analysis
IP Addresses
courseweb.org resolves to the IP addresses 13.248.169.48 and 76.223.54.146
www.drshare.com, sternview.com, treasurytoken.xyz and two other host names share IP numbers with courseweb.org.
Name Servers
courseweb.org is served by two delegated name servers, ns1.dan.com and ns2.dan.com.
courseweb.org uses the same name servers as several other domains — among them hillsaccountants.com, wetechsolutions.com, ns2.startle.us and two more.
courseweb.org has at least partial name server overlap with other domains, such as inglasgow.co.uk, poptones.com, digicream.com and two others.
It is common to find these name servers alongside the name servers ns1.undeveloped.com, ns2.undeveloped.com, verification-29h4m9ye.ns3.dan.hosting and two others.
Each of the two host names carries two IP addresses: ns1.dan.com points to 97.74.98.67 and 2603:5:2125::43, and ns2.dan.com points to 173.201.66.67 and 2603:5:2225::43.