codertutor.com - robtex.com
codertutor.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2607:f298:5:117a::fe2:f74d🇺🇸 AS263472607:f298:5::/48 417 Associated Rd. PMB 257 Brea CA 92821 United States | ||||||
| PTR | codertutor.com | ||||||
| A | 173.236.210.236🇺🇸 AS26347173.236.128.0/17 New Dream Network, LLC 417 Associated Rd. PMB 257 Brea, CA 92821 UNITED STATES | ||||||
| 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 | 54.187.177.89🇺🇸 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 2026-09-03 #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=1791450949 | ||||||
Same first word
codertutor.com |
Similar names
Previous names
Next names
DNS History
11 records (7 active, 4 former)
○NSns01.domaincontrol.com2015-11-28 → 2017-05-18 · 4 obs
● 2017-05-18 00:41:30
○ 2026-09-09 01:42:22
○ 2026-10-08 09:45:34
○NSns02.domaincontrol.com2015-11-28 → 2017-05-18 · 4 obs
● 2017-05-18 00:41:30
○ 2026-09-09 01:42:22
○ 2026-10-08 09:45:34
●NSns1.dreamhost.com2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
●NSns2.dreamhost.com2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
●NSns3.dreamhost.com2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
○MXmail.codertutor.com2015-11-28 → 2017-05-18 · 4 obs
● 2017-05-18 00:41:30
○ 2026-09-09 01:42:22
○ 2026-10-08 09:45:34
●MXmx1.mailchannels.net2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
●MXmx2.mailchannels.net2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
○A160.153.16.532015-11-28 → 2017-05-18 · 4 obs
● 2017-05-18 00:41:30
○ 2026-09-09 01:42:22
○ 2026-10-08 09:45:34
●A173.236.210.2362026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
●A2607:f298:5:117a::fe2:f74d2026-09-09 → 2026-10-08 · 3 obs
● 2026-09-09 01:42:22
● 2026-10-08 09:45:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net... | - |
| codertutor.com | ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com | 3 records |
✅ Authoritative Response
Server:162.159.27.84
NS records: ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codertutor.com (unsigned zone)
⏱️ Timing
Total: 336ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 173.236.210.236 |
| AAAA | 1 | 2607:f298:5:117a::fe2:f74d |
| NS | 3 | ns3.dreamhost.com, ns2.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 |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.dreamhost.com, ns2.dreamhost.com, ns3.dreamhost.com)
Analysis
IP Addresses
codertutor.com directs to two IP numbers, 173.236.210.236 and 2607:f298:5:117a::fe2:f74d
Additional host names — plsqltutorial.info, www.plsql.co, plsqltutorial.net and two others — share IP numbers with codertutor.com.
Name Servers
Three name servers are authoritative for codertutor.com: ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com.
codertutor.com shares at least some of its name servers with other domains, including bccamusic.org, tomyinbox.com, bankblog.nl and two others.
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
codertutor.com has two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
codertutor.com shares the same mail server setup as other domains, including mail.fersa.com.gt, dehamilton.com, fleetonclick.com and two others.
codertutor.com shares at least some of its mail servers with other domains, such as morrismethodsandmore.com.
mx1.mailchannels.net and mx2.mailchannels.net share one IP address between them — 54.187.177.89.
These two host names — mx1.mailchannels.net and mx2.mailchannels.net — each point to 54.187.177.89 IP addresses.