googleworkspace.courses - robtex.com
googleworkspace.courses
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.googledomains.com ⭐ | ||||||
| A | 2001:4860:4802:32::63🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns1.googledomains.com | ||||||
| A | 216.239.32.99🇺🇸 Google216.239.32.0/24 | ||||||
| PTR | ns1.googledomains.com | ||||||
| NS | ns2.googledomains.com | ||||||
| A | 2001:4860:4802:34::63🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns2.googledomains.com | ||||||
| A | 216.239.34.99🇺🇸 Google216.239.34.0/24 | ||||||
| PTR | ns2.googledomains.com | ||||||
| NS | ns3.googledomains.com | ||||||
| A | 2001:4860:4802:36::63🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns3.googledomains.com | ||||||
| A | 216.239.36.99🇺🇸 Google216.239.36.0/24 | ||||||
| PTR | ns3.googledomains.com | ||||||
| NS | ns4.googledomains.com | ||||||
| A | 2001:4860:4802:38::63🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns4.googledomains.com | ||||||
| A | 216.239.38.99🇺🇸 Google216.239.38.0/24 | ||||||
| PTR | ns4.googledomains.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.googledomains.comcloud-dns-hostmaster@google.com serial=1 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1776889798 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.googledomains.com2026-04-21 → 2026-04-22 · 2 obs
● 2026-04-22 20:42:00
●NSns2.googledomains.com2026-04-21 → 2026-04-22 · 2 obs
● 2026-04-22 20:42:00
●NSns3.googledomains.com2026-04-21 → 2026-04-22 · 2 obs
● 2026-04-22 20:42:00
●NSns4.googledomains.com2026-04-21 → 2026-04-22 · 2 obs
● 2026-04-22 20:42:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | a.nic.courses, x.nic.courses, c.nic.courses, b.nic.courses... | 12 records |
| googleworkspace.courses | ns1.googledomains.com, ns2.googledomains.com, ns3.googledomains.com, ns4.googledomains.com | - |
✅ Authoritative Response
Server:216.239.34.99
NS records: ns1.googledomains.com, ns2.googledomains.com, ns3.googledomains.com, ns4.googledomains.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for googleworkspace.courses (unsigned zone)
⏱️ Timing
Total: 570ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns4.googledomains.com, ns3.googledomains.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.googledomains.com cloud-dns-hostmast |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)
Analysis
Name Servers
googleworkspace.courses's delegation is handled by four name servers: ns1.googledomains.com, ns2.googledomains.com, ns3.googledomains.com and ns4.googledomains.com.
googleworkspace.courses partially shares name servers with other domains; examples include glogao.com, newutube.net, alooma.net, google-analytics.info and golgre.com.
Host names with two IPs:
ns1.googledomains.com points to 2001:4860:4802:32::63 and 216.239.32.99
ns2.googledomains.com points to 2001:4860:4802:34::63 and 216.239.34.99
ns3.googledomains.com points to 2001:4860:4802:36::63 and 216.239.36.99
ns4.googledomains.com points to 2001:4860:4802:38::63 and 216.239.38.99