postech.ca - dns.ninja
postech.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 173.236.140.216🇺🇸 AS26347173.236.128.0/17 New Dream Network, LLC 417 Associated Rd. PMB 257 Brea, CA 92821 UNITED STATES | ||||||
| PTR | apache2-bongo.iad1-shared-e1-18.dreamhost.com | ||||||
| NS | ns1.dreamhost.com ⭐ | ||||||
| A | 162.159.26.14Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.dreamhost.com | ||||||
| NS | ns2.dreamhost.com | ||||||
| A | 162.159.26.81Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.dreamhost.com | ||||||
| NS | ns3.dreamhost.com | ||||||
| A | 162.159.27.84Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.dreamhost.com | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| TXT | v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all | ||||||
| SOA | ns1.dreamhost.comhostmaster@dreamhost.com 2026-05-26 #3 | ||||||
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=2606151930 | ||||||
Subdomains
www.postech.ca |
Same first word
Similar names
DNS History
19 records (6 active, 13 former)
○NSdns1.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
○NSdns2.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
○NSdns3.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
○NSdns4.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
●NSns1.dreamhost.com2021-09-24 → 2026-06-15 · 3 obs
● 2021-09-24 14:17:16
● 2026-06-15 20:28:34
●NSns2.dreamhost.com2021-09-24 → 2026-06-15 · 3 obs
● 2021-09-24 14:17:16
● 2026-06-15 20:28:34
●NSns3.dreamhost.com2021-09-24 → 2026-06-15 · 3 obs
● 2021-09-24 14:17:16
● 2026-06-15 20:28:34
○NSns57.1and1.com2015-08-13 → 2017-01-01 · 4 obs
● 2017-01-01 06:58:54
○ 2019-11-02 18:20:06
○ 2026-06-15 20:28:34
○NSns58.1and1.com2015-08-13 → 2017-01-01 · 4 obs
● 2017-01-01 06:58:54
○ 2019-11-02 18:20:06
○ 2026-06-15 20:28:34
○MXmx00.1and1.com2015-08-13 → 2017-01-01 · 4 obs
● 2017-01-01 06:58:54
○ 2019-11-02 18:20:06
○ 2026-06-15 20:28:34
○MXmx01.1and1.com2015-08-13 → 2017-01-01 · 4 obs
● 2017-01-01 06:58:54
○ 2019-11-02 18:20:06
○ 2026-06-15 20:28:34
●MXmx1.mailchannels.net2021-09-24 → 2026-06-15 · 3 obs
● 2021-09-24 14:17:16
● 2026-06-15 20:28:34
○MXmx1.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
●MXmx2.mailchannels.net2021-09-24 → 2026-06-15 · 3 obs
● 2021-09-24 14:17:16
● 2026-06-15 20:28:34
○MXmx2.supertechs.org2019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
●A173.236.140.2162026-03-03 → 2026-06-15 · 3 obs
● 2026-03-03 15:10:20
● 2026-06-15 20:28:34
○A173.236.226.1592021-09-24 → 2021-09-24 · 4 obs
● 2021-09-24 14:17:16
○ 2026-03-03 15:10:20
○ 2026-06-15 20:28:34
○A198.23.48.512019-11-02 → 2020-07-12 · 5 obs
● 2019-11-02 18:20:06
● 2020-07-12 20:52:16
○ 2020-11-03 12:07:46
○ 2026-06-15 20:28:34
○A216.250.122.852015-08-13 → 2017-01-01 · 4 obs
● 2017-01-01 06:58:54
○ 2019-11-02 18:20:06
○ 2026-06-15 20:28:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca | - |
| postech.ca | ns2.dreamhost.com, ns1.dreamhost.com, ns3.dreamhost.com | - |
✅ Authoritative Response
Server:162.159.26.14
NS records: ns2.dreamhost.com, ns1.dreamhost.com, ns3.dreamhost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for postech.ca (unsigned zone)
⏱️ Timing
Total: 260ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 173.236.140.216 |
| NS | 3 | ns2.dreamhost.com, ns1.dreamhost.com... |
| MX | 2 | mx2.mailchannels.net (pri: 0), mx1.mailchannels.net (pri: 0) |
| TXT | 1 | v=spf1 mx include:netblocks.dreamhost.co |
| SOA | 1 | ns1.dreamhost.com hostmaster.dreamhost.c |
Analysis
Hierarchy
postech.ca serves as the parent of www.postech.ca.
IP Addresses
postech.ca has exactly one IP address — 173.236.140.216.
www.entroterra.org, www.postech.ca, spinwire.net plus two other host names have IP numbers in common with postech.ca.
Name Servers
postech.ca is served by three name servers: ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com.
postech.ca has at least partial name server overlap with other domains, such as responsiblehomeschooling.org, tmzero.com, dougsassman.com and two others.
ns1.dreamhost.com has IP address 162.159.26.14, ns2.dreamhost.com has IP address 162.159.26.81 and ns3.dreamhost.com has IP address 162.159.27.84 — one address each.
Mail Servers
postech.ca uses two mail servers, mx1.mailchannels.net and mx2.mailchannels.net.
The mail server setup of postech.ca matches that of other domains such as colojoe.com, archaeologicaltextiles.net, inhabitedkitchen.com and two others.
The mail servers of postech.ca are at least partially shared with other domains, including observatoriodeviolencias.net.
mx1.mailchannels.net directs to 54.187.177.89 and mx2.mailchannels.net directs to 54.69.1.140; each host name points to exactly one IP number.