koreacourse.com - robtex.com
koreacourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 67.205.4.239🇺🇸 AS2634767.205.0.0/19 New Dream Network, LLC 417 Associated Rd. PMB 257 Brea, CA 92821 UNITED STATES | ||||||
| PTR | apache2-cabo.iad1-shared-b7-47.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 | ||||||
| SOA | ns1.dreamhost.comhostmaster@dreamhost.com 2026-03-06 #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=1774405722 | ||||||
Previously MX for
koreacourse.com |
Same first word
koreacourse.com |
DNS History
8 records (4 active, 4 former)
●NSns1.dreamhost.com2026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 07:08:30
● 2026-03-25 02:45:44
○NSns1.techphases.com2016-12-16 → 2017-11-06 · 4 obs
● 2017-11-06 23:09:12
○ 2026-02-26 07:08:30
○ 2026-03-25 02:45:44
●NSns2.dreamhost.com2026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 07:08:30
● 2026-03-25 02:45:44
○NSns2.techphases.com2016-12-16 → 2017-11-06 · 4 obs
● 2017-11-06 23:09:12
○ 2026-02-26 07:08:30
○ 2026-03-25 02:45:44
●NSns3.dreamhost.com2026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 07:08:30
● 2026-03-25 02:45:44
○MXkoreacourse.com2016-12-16 → 2017-11-06 · 4 obs
● 2017-11-06 23:09:12
○ 2026-02-26 07:08:30
○ 2026-03-25 02:45:44
○A64.131.76.2232016-12-16 → 2017-11-06 · 4 obs
● 2017-11-06 23:09:12
○ 2026-02-26 07:08:30
○ 2026-03-25 02:45:44
●A67.205.4.2392026-02-26 → 2026-03-25 · 3 obs
● 2026-02-26 07:08:30
● 2026-03-25 02:45:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| koreacourse.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 koreacourse.com (unsigned zone)
⏱️ Timing
Total: 128ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 67.205.4.239 |
| NS | 3 | ns3.dreamhost.com, ns1.dreamhost.com... |
| 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
koreacourse.com points to a single IP number: 67.205.4.239.
other host names for instance www.sebastianairport.com, www.shumateraleigh.com, travisrhoden.com, mail.redrocksw.com and acapuzhal.com share IP numbers with koreacourse.com.
Name Servers
koreacourse.com is delegated to three name servers: ns1.dreamhost.com, ns2.dreamhost.com and ns3.dreamhost.com.
koreacourse.com at least partially shares name servers with other domains, for instance evstrategic.com, rantagepoint.net, secureterrain.com, ameriwound.com and lasartura.com.
Host names with one IP number:
ns1.dreamhost.com points to 162.159.26.14.
ns2.dreamhost.com points to 162.159.26.81.
ns3.dreamhost.com points to 162.159.27.84.