coltechpub.com - dns.ninja
coltechpub.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 173.236.136.174🇺🇸 AS26347173.236.128.0/17 New Dream Network, LLC 417 Associated Rd. PMB 257 Brea, CA 92821 UNITED STATES | ||||||
| PTR | apache2-yak.iad1-shared-e1-23.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 | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.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 | ||||||
| TXT | v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all | ||||||
| SOA | ns1.dreamhost.comhostmaster@dreamhost.com 2026-06-19 #3 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786403134 | ||||||
Subdomains
Same first word
coltechpub.com |
Similar names
DNS History
11 records (6 active, 5 former)
●NSns1.dreamhost.com2026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
○NSns1.estreet.com2016-12-17 → 2017-09-22 · 4 obs
● 2017-09-22 23:26:00
○ 2026-04-13 19:10:18
○ 2026-08-10 23:27:22
●NSns2.dreamhost.com2026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
○NSns2.estreet.com2016-12-17 → 2017-09-22 · 4 obs
● 2017-09-22 23:26:00
○ 2026-04-13 19:10:18
○ 2026-08-10 23:27:22
●NSns3.dreamhost.com2026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
○NSns3.estreet.com2016-12-17 → 2017-09-22 · 4 obs
● 2017-09-22 23:26:00
○ 2026-04-13 19:10:18
○ 2026-08-10 23:27:22
○MXmail.coltechpub.com2016-12-17 → 2017-09-22 · 4 obs
● 2017-09-22 23:26:00
○ 2026-04-13 19:10:18
○ 2026-08-10 23:27:22
●MXmx1.mailchannels.net2026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
●MXmx2.mailchannels.net2026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
●A173.236.136.1742026-04-13 → 2026-08-10 · 3 obs
● 2026-04-13 19:10:18
● 2026-08-10 23:27:22
○A66.17.141.962016-12-17 → 2017-09-22 · 4 obs
● 2017-09-22 23:26:00
○ 2026-04-13 19:10:18
○ 2026-08-10 23:27:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coltechpub.com | ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com | 3 records |
✅ Authoritative Response
Server:162.159.26.14
NS records: ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coltechpub.com (unsigned zone)
⏱️ Timing
Total: 232ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 173.236.136.174 |
| NS | 3 | ns2.dreamhost.com, ns1.dreamhost.com... |
| MX | 2 | mx1.mailchannels.net (pri: 0), mx2.mailchannels.net (pri: 0) |
| TXT | 1 | v=spf1 mx include:netblocks.dreamhost.co |
| SOA | 1 | ns1.dreamhost.com hostmaster.dreamhost.c |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com)
Analysis
Hierarchy
The parent domain of www.coltechpub.com and mail.coltechpub.com is coltechpub.com.
IP Addresses
coltechpub.com directs to one IP number, which is 173.236.136.174.
Among the host names that share IP numbers with coltechpub.com are secondpagemedia.com, jmre.es, fundamentaldecisions.com and two others.
Name Servers
Three name servers are authoritative for coltechpub.com: ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com.
At least some of coltechpub.com's name servers are shared with other domains, for example megapod.net, freedom-baptist.org, nathanfduffy.com and two more.
Three hostnames, one IP address apiece: ns1.dreamhost.com resolves to 162.159.26.14, ns2.dreamhost.com resolves to 162.159.26.81 and ns3.dreamhost.com resolves to 162.159.27.84.
Mail Servers
The MX records for coltechpub.com point to two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
coltechpub.com has the same mail server arrangement as a number of other domains, for example atomicmedium.com, pulaskinet.com, romaf.com.br and two more.
There is at least a partial overlap in mail servers between coltechpub.com and other domains like kapemail.com, actia.cz and dbtax.net.
Each of mx1.mailchannels.net and mx2.mailchannels.net has one IP address: mx1.mailchannels.net uses 54.69.1.140 and mx2.mailchannels.net uses 54.187.177.89.