rationaltech.ca - dns.ninja
rationaltech.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 137.184.168.67🇨🇦 DIGITALOCEAN137.184.160.0/20 DigitalOcean | ||||||
| PTR | rationaltech.ca | ||||||
| NS | ns1.digitalocean.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| A | 172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| NS | ns2.digitalocean.com | ||||||
| A | 2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| A | 172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| NS | ns3.digitalocean.com | ||||||
| A | 2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| A | 172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| MX | mail.rationaltech.ca ⭐ | ||||||
| A | 137.184.168.67🇨🇦 DIGITALOCEAN137.184.160.0/20 DigitalOcean | ||||||
| PTR | rationaltech.ca | ||||||
| TXT | v=spf1 include:_spf.google.com ~all | ||||||
| TXT | google-site-verification=giWbNxjE02Zj6ZUiaQyy0HHvEOTU31lTISo6BKzN6Rk | ||||||
| SOA | ns1.digitalocean.comhostmaster@rationaltech.ca serial=0 | ||||||
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=2606301500 | ||||||
PTR for
Subdomains
mail.rationaltech.ca |
Same first word
rationaltech.ca |
rationaltech.net |
rationaltech.com |
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.digitalocean.com2015-08-23 → 2026-06-30 · 2 obs
● 2026-06-30 15:49:34
●NSns2.digitalocean.com2015-08-23 → 2026-06-30 · 2 obs
● 2026-06-30 15:49:34
●NSns3.digitalocean.com2015-08-23 → 2026-06-30 · 2 obs
● 2026-06-30 15:49:34
●MXmail.rationaltech.ca2015-08-23 → 2026-06-30 · 2 obs
● 2026-06-30 15:49:34
●A137.184.168.672026-03-30 → 2026-06-30 · 3 obs
● 2026-03-30 05:58:02
● 2026-06-30 15:49:34
○A45.55.142.2112015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 22:45:10
○ 2026-03-30 05:58:02
○ 2026-06-30 15:49:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca | - |
| rationaltech.ca | ns2.digitalocean.com, ns3.digitalocean.com, ns1.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.52.210
NS records: ns2.digitalocean.com, ns3.digitalocean.com, ns1.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rationaltech.ca (unsigned zone)
⏱️ Timing
Total: 208ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 137.184.168.67 |
| NS | 3 | ns3.digitalocean.com, ns1.digitalocean.com... |
| MX | 1 | mail.rationaltech.ca (pri: 1) |
| TXT | 2 | google-site-verification=giWbNxjE02Zj6ZU, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns1.digitalocean.com hostmaster.rational |
Analysis
Hierarchy
rationaltech.ca is a parent domain of mail.rationaltech.ca.
IP Addresses
rationaltech.ca resolves to one IP address: 137.184.168.67.
Among the host names that share IP numbers with rationaltech.ca is mail.rationaltech.ca, as one example.
Name Servers
rationaltech.ca is served by three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
rationaltech.ca shares at least some of its name servers with other domains, including 13.225.64.in-addr.arpa, pageproofer.com, croskrey.com and two others.
The hostnames ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com each direct to two IP addresses — ns1.digitalocean.com to 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com to 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com to 172.64.49.209 and 2606:4700:52::ac40:31d1.
Mail Servers
Mail for rationaltech.ca is handled by a single mail server, mail.rationaltech.ca.
mail.rationaltech.ca resolves to 137.184.168.67 and no other IP number.