courses.guru - robtex.com
courses.guru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.243.5🇺🇸 Amazon13.248.240.0/20 | ||||||
| PTR | a16e665f42988324c.awsglobalaccelerator.com | ||||||
| A | 76.223.105.230🇺🇸 Amazon76.223.96.0/20 | ||||||
| NS | ns67.domaincontrol.com ⭐ | ||||||
| A | 2603:5:2174::2c🇺🇸 GODADDY-DNS2603:5:2170::/44 | ||||||
| PTR | ns67.domaincontrol.com | ||||||
| A | 97.74.103.44🇺🇸 GODADDY-DNS97.74.102.0/23 | ||||||
| PTR | ns67.domaincontrol.com | ||||||
| NS | ns68.domaincontrol.com | ||||||
| A | 2603:5:2274::2c🇺🇸 GODADDY-DNS2603:5:2270::/44 | ||||||
| PTR | ns68.domaincontrol.com | ||||||
| A | 173.201.71.44🇺🇸 GODADDY-DNS173.201.70.0/23 | ||||||
| PTR | ns68.domaincontrol.com | ||||||
| SOA | ns67.domaincontrol.comdns@jomax.net 2025-08-28 #2 | ||||||
guru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.guru ⭐ | ||||||
| NS | v0n1.nic.guru | ||||||
| NS | v0n2.nic.guru | ||||||
| NS | v0n3.nic.guru | ||||||
| NS | v2n0.nic.guru | ||||||
| NS | v2n1.nic.guru | ||||||
| SOA | v0n0.nic.guruhostmaster@donuts.email serial=1780537132 | ||||||
Same first word
Similar names
DNS History
19 records (4 active, 15 former)
○NSns.namespace4you.de2019-11-08 → 2019-11-08 · 4 obs
● 2019-11-08 12:15:20
○ 2026-05-31 19:25:22
○ 2026-06-04 01:56:00
○NSns1.eco-dns.co.uk2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○NSns1.stackdns.com2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○NSns2.eco-dns.co.uk2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○NSns2.namespace4you.de2019-11-08 → 2019-11-08 · 4 obs
● 2019-11-08 12:15:20
○ 2026-05-31 19:25:22
○ 2026-06-04 01:56:00
○NSns3.eco-dns.co.uk2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○NSns4.eco-dns.co.uk2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
●NSns67.domaincontrol.com2026-05-31 → 2026-06-04 · 3 obs
● 2026-05-31 19:25:22
● 2026-06-04 01:56:00
●NSns68.domaincontrol.com2026-05-31 → 2026-06-04 · 3 obs
● 2026-05-31 19:25:22
● 2026-06-04 01:56:00
○MXmx.stackmail.com2017-03-28 → 2017-03-28 · 3 obs
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○MXmxlb.ispgateway.de2019-11-08 → 2019-11-08 · 4 obs
● 2019-11-08 12:15:20
○ 2026-05-31 19:25:22
○ 2026-06-04 01:56:00
●A13.248.243.52026-05-31 → 2026-06-04 · 3 obs
● 2026-05-31 19:25:22
● 2026-06-04 01:56:00
○A185.151.28.1512017-03-28 → 2017-03-28 · 4 obs
● 2017-03-28 18:34:12
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○A2a00:1158:0:100::142019-11-08 → 2019-11-08 · 4 obs
● 2019-11-08 12:15:20
○ 2026-05-31 19:25:22
○ 2026-06-04 01:56:00
○A2a07:7800::1512017-03-28 → 2017-03-28 · 4 obs
● 2017-03-28 18:34:12
○ 2019-11-08 12:15:20
○ 2026-06-04 01:56:00
○A52.202.245.992016-12-10 → 2016-12-10 · 3 obs
○ 2017-03-28 18:34:12
○ 2026-06-04 01:56:00
●A76.223.105.2302026-05-31 → 2026-06-04 · 3 obs
● 2026-05-31 19:25:22
● 2026-06-04 01:56:00
○A80.67.16.82019-11-08 → 2019-11-08 · 4 obs
● 2019-11-08 12:15:20
○ 2026-05-31 19:25:22
○ 2026-06-04 01:56:00
○CNAMEwebapp.parkingpage.production.flippa.com2016-12-10 → 2016-12-10 · 3 obs
○ 2017-03-28 18:34:12
○ 2026-06-04 01:56:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| guru | v0n0.nic.guru, v2n0.nic.guru, v0n1.nic.guru, v0n3.nic.guru... | 12 records |
| courses.guru | ns68.domaincontrol.com, ns67.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.71.44
NS records: ns68.domaincontrol.com, ns67.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courses.guru (unsigned zone)
⏱️ Timing
Total: 271ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns67.domaincontrol.com, ns68.domaincontrol.com |
| SOA | 1 | ns67.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v2n1.nic.guru, v2n0.nic.guru, v0n3.nic.guru...)
Analysis
IP Addresses
courses.guru points to two IP numbers: 13.248.243.5 and 76.223.105.230.
Among the host names that share IP numbers with courses.guru are icte.us, aandnautosales.com, talentedsearchgroup.com and two others.
Name Servers
courses.guru uses two name servers for its delegation: ns67.domaincontrol.com and ns68.domaincontrol.com.
courses.guru has the same name server delegation as a number of other domains, such as blackdowndental.co.uk, shoreandcity.com, dotachi.com and two more.
The two host names ns67.domaincontrol.com and ns68.domaincontrol.com each have a pair of IP addresses: ns67.domaincontrol.com has 97.74.103.44 and 2603:5:2174::2c, and ns68.domaincontrol.com has 173.201.71.44 and 2603:5:2274::2c.