cu.ca - dns.ninja
cu.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 141.118.20.225 | ||||||
| NS | atcoinns.atco.ca ⭐ | ||||||
| NS | atcodns3.atco.ca | ||||||
| NS | atcoinss.atco.ca | ||||||
| MX | cul-ca.mail.protection.outlook.com ⭐ | ||||||
| TXT | MS=ms68962593 | ||||||
| SOA | atcoinns.atco.caroot@admin.atco.ca serial=85 | ||||||
ca
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | prd-czp-05.corp.cira.ca ⭐ | ||||||
| NS | any.ca-servers.ca | ||||||
| NS | c.ca-servers.ca | ||||||
| NS | d.ca-servers.ca | ||||||
| NS | j.ca-servers.ca | ||||||
| SOA | prd-czp-05.corp.cira.caadmin-dns@cira.ca serial=2606290530 | ||||||
Subdomains
www.cu.ca |
DNS History
8 records (5 active, 3 former)
●MXcul-ca.mail.protection.outlook.com2017-08-03 → 2026-06-29 · 3 obs
○ 2017-05-08 22:17:26
● 2017-08-03 03:49:56
● 2026-06-29 06:26:00
● 2017-08-03 03:49:56
● 2026-06-29 06:26:00
○MXes3.atco.ca2015-08-25 → 2017-05-08 · 4 obs
● 2015-08-25 12:20:20
● 2017-05-08 22:17:26
○ 2017-08-03 03:49:56
○ 2026-06-29 06:26:00
● 2017-05-08 22:17:26
○ 2017-08-03 03:49:56
○ 2026-06-29 06:26:00
○MXes4.atco.ca2015-08-25 → 2017-05-08 · 4 obs
● 2015-08-25 12:20:20
● 2017-05-08 22:17:26
○ 2017-08-03 03:49:56
○ 2026-06-29 06:26:00
● 2017-05-08 22:17:26
○ 2017-08-03 03:49:56
○ 2026-06-29 06:26:00
●A141.118.20.2252019-08-11 → 2026-06-29 · 3 obs
○ 2019-01-09 03:02:00
● 2019-08-11 01:48:10
● 2026-06-29 06:26:00
● 2019-08-11 01:48:10
● 2026-06-29 06:26:00
○A192.210.5.412015-08-25 → 2019-01-09 · 4 obs
● 2015-08-25 12:20:20
● 2019-01-09 03:02:00
○ 2019-08-11 01:48:10
○ 2026-06-29 06:26:00
● 2019-01-09 03:02:00
○ 2019-08-11 01:48:10
○ 2026-06-29 06:26:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | j.ca-servers.ca, c.ca-servers.ca, d.ca-servers.ca, any.ca-servers.ca | - |
| cu.ca | atcodns3.atco.ca, atcoinss.atco.ca, atcoinns.atco.ca | 3 records |
✅ Authoritative Response
Server:192.210.5.122
NS records: atcodns3.atco.ca, atcoinss.atco.ca, atcoinns.atco.ca
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cu.ca (unsigned zone)
⏱️ Timing
Total: 4410ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 141.118.20.225 |
| NS | 3 | atcodns3.atco.ca, atcoinss.atco.ca... |
| MX | 1 | cul-ca.mail.protection.outlook.com (pri: |
| TXT | 1 | MS=ms68962593 |
| SOA | 1 | atcoinns.atco.ca root.admin.atco.ca |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (atcoinss.atco.ca, atcoinns.atco.ca, atcodns3.atco.ca)
Analysis
Hierarchy
www.cu.ca is delegated beneath cu.ca.
IP Addresses
cu.ca has exactly one IP address — 141.118.20.225.
Name Servers
The authoritative name servers for cu.ca are atcodns3.atco.ca, atcoinns.atco.ca and atcoinss.atco.ca — three in total.
Mail Servers
cu.ca uses one mail server — cul-ca.mail.protection.outlook.com.