dot.ca - dns.ninja
dot.ca
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 72.51.8.118๐จ๐ฆ APTUM72.51.8.0/22 Aptum Route Object | ||||||
| PTR | mail.authserv.ca | ||||||
| NS | ns2.tcns.com โญ | ||||||
| A | 72.51.8.118๐จ๐ฆ APTUM72.51.8.0/22 Aptum Route Object | ||||||
| PTR | mail.authserv.ca | ||||||
| NS | ns2.tcns.ca | ||||||
| A | 65.39.199.216๐จ๐ฆ APTUM65.39.198.0/23 | ||||||
| PTR | ns2.tcns.com | ||||||
| NS | ns3.tcns.com | ||||||
| A | 65.39.199.213๐จ๐ฆ APTUM65.39.198.0/23 | ||||||
| PTR | ns3.tcns.com | ||||||
| MX | mail.authserv.ca โญ | ||||||
| A | 72.51.8.118๐จ๐ฆ APTUM72.51.8.0/22 Aptum Route Object | ||||||
| PTR | mail.authserv.ca | ||||||
| TXT | v=spf1 a:mail.authserv.ca ~all | ||||||
| TXT | google-site-verification=bBfjEsUyk36f3uqo8WBXql_5TsLHmr1YT-Hf987TrGc | ||||||
| SOA | ns2.tcns.compostmaster@tcns.com serial=1518001901 | ||||||
ca
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | prd-czp-05.corp.cira.ca โญ | ||||||
| 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=2607200700 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
โNSns2.tcns.ca2026-02-25 โ 2026-07-20 ยท 3 obs
โ 2026-02-25 16:42:22
โ 2026-07-20 07:38:10
โMXmail.authserv.ca2016-07-18 โ 2026-07-20 ยท 3 obs
โ 2016-07-18 21:48:04
โ 2026-07-20 07:38:10
โMXmail.authserve.ca2016-03-30 โ 2016-04-21 ยท 5 obs
โ 2016-03-30 07:34:18
โ 2016-04-21 20:46:48
โ 2016-06-08 11:41:38
โ 2026-07-20 07:38:10
โMXmail.dot.ca2015-08-31 โ 2016-06-08 ยท 5 obs
โ 2015-08-31 12:15:32
โ 2016-06-08 11:41:38
โ 2016-07-18 21:48:04
โ 2026-07-20 07:38:10
โMXmail.tcns.com2009-01-16 โ 2016-06-08 ยท 4 obs
โ 2016-06-08 11:41:38
โ 2016-07-18 21:48:04
โ 2026-07-20 07:38:10
โA65.39.199.2192009-01-16 โ 2016-12-14 ยท 4 obs
โ 2016-12-14 12:06:06
โ 2026-02-25 16:42:22
โ 2026-07-20 07:38:10
โA72.51.8.1182026-02-25 โ 2026-07-20 ยท 3 obs
โ 2026-02-25 16:42:22
โ 2026-07-20 07:38:10
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | d.ca-servers.ca, any.ca-servers.ca, c.ca-servers.ca, j.ca-servers.ca | - |
| dot.ca | ns2.tcns.ca, ns3.tcns.com | 1 record |
โ Authoritative Response
Server:65.39.199.216
NS records: ns2.tcns.ca, ns3.tcns.com
๐ DNSSEC Status
โ Bogus (DNSSEC validation failed)
Validation error at dot.ca: Error: DNS query timeout: 45.142.220.101 for DS dot.ca
โฑ๏ธ Timing
Total: 3552ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.51.8.118 |
| NS | 2 | ns2.tcns.ca, ns3.tcns.com |
| MX | 1 | mail.authserv.ca (pri: 5) |
| TXT | 2 | google-site-verification=bBfjEsUyk36f3uq, v=spf1 a:mail.authserv.ca ~all |
| SOA | 1 | ns2.tcns.com postmaster.tcns.com |
๐ Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns2.tcns.ca)
Analysis
Hierarchy
mail.dot.ca and www.dot.ca are both subdomains of dot.ca.
IP Addresses
dot.ca resolves to one IP address: 72.51.8.118.
archivalproducts.ca, mail.tcns.com, mail.authserv.ca and two other host names share IP numbers with dot.ca.
Name Servers
dot.ca carries NS records delegating to ns2.tcns.ca, ns2.tcns.com and ns3.tcns.com.
dot.ca shares at least some of its name servers with other domains, including holycrossschool.mb.ca, retirementadvisor.ca, e-x-change.ca and two others.
These name servers are frequently seen alongside the name servers services.tcns.com.
ns2.tcns.ca points to 65.39.199.216; ns2.tcns.com points to 72.51.8.118; ns3.tcns.com points to 65.39.199.213 โ each hostname maps to exactly one IP address.
Mail Servers
Mail for dot.ca is handled by a single mail server, mail.authserv.ca.
dot.ca uses an identical mail server configuration to several other domains โ among them dewdad.com, poultrade.on.ca, holzwarth.ca and two more.
dot.ca has at least partial mail server overlap with other domains such as tcns.com, ireland-engineering.on.ca, wolfgang.ca and two more.
These mail servers are frequently paired with the mail servers mx.tcns.com, mail.ireland-engineering.on.ca and mail.wolfgang.ca.
mail.authserv.ca carries a single IP number, which is 72.51.8.118.