optional.ca - dns.ninja
optional.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 50.116.49.154🇺🇸 AKAMAI-LINODE-AP50.116.48.0/20 Akamai Technologies | ||||||
| NS | ns1.linode.com ⭐ | ||||||
| A | 2600:14c0:6::2🇺🇸 Akamai2600:14c0:6::/48 Technologies | ||||||
| PTR | c1-2.akashield.net | ||||||
| A | 92.123.94.2🇳🇱 Akamai92.123.94.0/24 Technologies | ||||||
| NS | ns2.linode.com | ||||||
| A | 2600:14c0:6::3🇺🇸 Akamai2600:14c0:6::/48 Technologies | ||||||
| PTR | c1-3.akashield.net | ||||||
| A | 92.123.94.3🇳🇱 Akamai92.123.94.0/24 Technologies | ||||||
| NS | ns3.linode.com | ||||||
| A | 2600:14c0:7::3🇺🇸 Akamai2600:14c0:7::/48 Technologies | ||||||
| PTR | c2-3.akashield.net | ||||||
| A | 92.123.95.3🇳🇱 Akamai92.123.95.0/24 Technologies | ||||||
| NS | ns4.linode.com ⚠️ Not in parent delegation | ||||||
| A | 2600:14c0:7::4🇺🇸 Akamai2600:14c0:7::/48 Technologies | ||||||
| PTR | c2-4.akashield.net | ||||||
| A | 92.123.95.4🇳🇱 Akamai92.123.95.0/24 Technologies | ||||||
| NS | ns5.linode.com ⚠️ Not in parent delegation | ||||||
| A | 2600:14c0:7::2🇺🇸 Akamai2600:14c0:7::/48 Technologies | ||||||
| PTR | c2-2.akashield.net | ||||||
| A | 92.123.95.2🇳🇱 Akamai92.123.95.0/24 Technologies | ||||||
| MX | mail.optional.ca ⭐ | ||||||
| A | 50.116.49.154🇺🇸 AKAMAI-LINODE-AP50.116.48.0/20 Akamai Technologies | ||||||
| SOA | ns1.linode.comdomains@brandlab.com 2014-07-17 #38 | ||||||
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=2606291900 | ||||||
Subdomains
mail.optional.ca |
Same first word
optional.eu |
optional.co |
optional.info |
optional.it |
optional.is |
optional.ca |
optional.com |
optional.org |
optional.us |
optional.mobi |
optional.at |
optional.net |
optional.in |
optional.de |
optional.ru |
Similar names
DNS History
7 records (7 active, 0 former)
●NSns1.linode.com2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●NSns2.linode.com2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●NSns3.linode.com2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●NSns4.linode.com2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●NSns5.linode.com2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●MXmail.optional.ca2015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
●A50.116.49.1542015-04-22 → 2026-06-29 · 2 obs
● 2026-06-29 19:29:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | d.ca-servers.ca, any.ca-servers.ca, c.ca-servers.ca, j.ca-servers.ca | - |
| optional.ca | ns1.linode.com, ns2.linode.com, ns3.linode.com | - |
✅ Authoritative Response
Server:92.123.94.2
NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optional.ca (unsigned zone)
⏱️ Timing
Total: 941ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 50.116.49.154 |
| NS | 5 | ns4.linode.com, ns1.linode.com... |
| MX | 1 | mail.optional.ca (pri: 10) |
| SOA | 1 | ns1.linode.com domains.brandlab.com |
Analysis
Hierarchy
optional.ca serves as the parent of mail.optional.ca.
IP Addresses
optional.ca points to a single IP number: 50.116.49.154.
Additional host names — tender.ca, beef.ca, elearningcentre.ca and two others — share IP numbers with optional.ca.
Name Servers
Delegation for optional.ca is to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com and two others.
optional.ca has at least partial name server overlap with other domains, such as media.wf, caattorneysatlaw.com, mesman.net and two others.
It is common to see these name servers used together with name servers ns4.linode.com and ns5.linode.com.
Host names with two IP numbers:
ns1.linode.com has two IP addresses: 92.123.94.2 and 2600:14c0:6::2.
ns2.linode.com has two IP addresses: 92.123.94.3 and 2600:14c0:6::3.
ns3.linode.com has two IP addresses: 92.123.95.3 and 2600:14c0:7::3.
ns4.linode.com has two IP addresses: 92.123.95.4 and 2600:14c0:7::4.
ns5.linode.com has two IP addresses: 92.123.95.2 and 2600:14c0:7::2.
Mail Servers
optional.ca has one mail server: mail.optional.ca.
mail.optional.ca has exactly one IP number: 50.116.49.154.