s4u.ca - robtex.com
s4u.ca
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.web-dns1.com ⚠️ Not in zone NS records | ||||||
| A | 173.209.49.178🇨🇦 GTCOMM-36666173.209.32.0/19 Globotech Communications | ||||||
| PTR | ns1.web-dns1.com | ||||||
| NS | ns2.web-dns1.com ⚠️ Not in zone NS records | ||||||
| A | 68.168.122.106🇨🇦 GTCOMM-3666668.168.112.0/20 GloboTech Network | ||||||
| PTR | ns2.web-dns1.com | ||||||
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=2607221330 | ||||||
Previously NS for
s4u.ca |
Previously MX for
s4u.ca |
Same first word
Similar names
DNS History
15 records (2 active, 13 former)
●NSns1.web-dns1.com2026-07-20 → 2026-07-22 · 3 obs
● 2026-07-20 15:25:42
● 2026-07-22 14:01:12
○NSns1.whc.ca2020-12-30 → 2020-12-30 · 4 obs
● 2020-12-30 20:10:20
○ 2026-07-20 15:25:42
○ 2026-07-22 14:01:12
●NSns2.web-dns1.com2026-07-20 → 2026-07-22 · 3 obs
● 2026-07-20 15:25:42
● 2026-07-22 14:01:12
○NSns2.whc.ca2020-12-30 → 2020-12-30 · 4 obs
● 2020-12-30 20:10:20
○ 2026-07-20 15:25:42
○ 2026-07-22 14:01:12
○NSns3.dm.egate.net2015-05-27 → 2016-04-11 · 4 obs
● 2016-04-11 07:52:44
○ 2016-06-23 11:51:10
○ 2026-07-22 14:01:12
○NSns3.whc.ca2020-12-30 → 2020-12-30 · 4 obs
● 2020-12-30 20:10:20
○ 2026-07-20 15:25:42
○ 2026-07-22 14:01:12
○NSns4.dm.egate.net2015-05-27 → 2016-04-11 · 4 obs
● 2016-04-11 07:52:44
○ 2016-06-23 11:51:10
○ 2026-07-22 14:01:12
○NSs4u.ca2015-05-27 → 2016-04-11 · 4 obs
● 2016-04-11 07:52:44
○ 2016-06-23 11:51:10
○ 2026-07-22 14:01:12
○NSslns1.namespro.ca2016-06-23 → 2017-07-01 · 5 obs
● 2016-06-23 11:51:10
● 2017-07-01 08:24:48
○ 2020-12-30 20:10:20
○ 2026-07-22 14:01:12
○NSslns2.namespro.ca2016-06-23 → 2017-07-01 · 5 obs
● 2016-06-23 11:51:10
● 2017-07-01 08:24:48
○ 2020-12-30 20:10:20
○ 2026-07-22 14:01:12
○MXmail.s4u.ca2016-06-23 → 2017-07-01 · 4 obs
● 2017-07-01 08:24:48
○ 2020-12-30 20:10:20
○ 2026-07-22 14:01:12
○MXs4u.ca2020-12-30 → 2020-12-30 · 4 obs
● 2020-12-30 20:10:20
○ 2026-07-20 15:25:42
○ 2026-07-22 14:01:12
○A216.235.2.1452015-05-27 → 2016-04-11 · 4 obs
● 2016-04-11 07:52:44
○ 2016-06-23 11:51:10
○ 2026-07-22 14:01:12
○A70.85.232.22016-06-23 → 2017-07-01 · 5 obs
● 2016-06-23 11:51:10
● 2017-07-01 08:24:48
○ 2020-12-30 20:10:20
○ 2026-07-22 14:01:12
○A72.10.169.512020-12-30 → 2020-12-30 · 4 obs
● 2020-12-30 20:10:20
○ 2026-07-20 15:25:42
○ 2026-07-22 14:01:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca | - |
| s4u.ca | ns2.web-dns1.com, ns1.web-dns1.com | - |
✅ Authoritative Response
Server:173.209.49.178
NS records: ns2.web-dns1.com, ns1.web-dns1.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for s4u.ca (unsigned zone)
⏱️ Timing
Total: 3417ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
The NS records for s4u.ca delegate to ns1.web-dns1.com and ns2.web-dns1.com.
s4u.ca uses the same name servers as several other domains — among them ois.ci, stmi.ca, assuredsolutions.ca and two more.
At least some of s4u.ca's name servers are shared with other domains, for example tomspetter.com, livelovelifemusic.com, geronimodesign.ca and two more.
These name servers are often deployed together with the name servers ns3.web-dns1.com, ns1.whc.ca, ns2.whc.ca and ns3.whc.ca.
Each of ns1.web-dns1.com and ns2.web-dns1.com has one IP address: ns1.web-dns1.com uses 173.209.49.178 and ns2.web-dns1.com uses 68.168.122.106.