courseform.com - dns.ninja
courseform.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 213.109.149.41🇺🇸 Cybercon213.109.149.0/24 autogen | ||||||
| PTR | scluster10.stablehost.com | ||||||
| NS | ns1.stablehost.com ⭐ | ||||||
| A | 162.159.24.175Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.reliabledns.org | ||||||
| NS | ns2.stablehost.com | ||||||
| A | 162.159.25.144Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.reliabledns.org | ||||||
| MX | courseform.com ⭐ | ||||||
| A | 213.109.149.41🇺🇸 Cybercon213.109.149.0/24 autogen | ||||||
| PTR | scluster10.stablehost.com | ||||||
| TXT | v=spf1 ip4:213.109.149.40 include:_spf.reliablemail.org +mx +a +ip4:184.154.4... | ||||||
| SOA | ns1.stablehost.comalerts@stablehost.com 2026-05-28 #1 | ||||||
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=1785112872 | ||||||
MX for
courseform.com |
Same first word
courseform.com |
Similar names
coreforums.com |
fromsource.net |
forumscore.com |
coreforums.net |
formsource.com |
formsource.net |
sourceform.co.uk |
sourcefrom.com |
DNS History
6 records (4 active, 2 former)
●NSns1.stablehost.com2015-06-29 → 2026-07-27 · 2 obs
● 2026-07-27 00:57:36
●NSns2.stablehost.com2015-06-29 → 2026-07-27 · 2 obs
● 2026-07-27 00:57:36
●MXcourseform.com2015-06-29 → 2026-07-27 · 2 obs
● 2026-07-27 00:57:36
○A108.178.52.432015-06-29 → 2017-01-23 · 4 obs
● 2017-01-23 22:24:44
○ 2018-10-09 08:15:56
○ 2026-07-27 00:57:36
○A198.143.149.1512018-10-09 → 2018-10-09 · 4 obs
● 2018-10-09 08:15:56
○ 2026-03-06 04:35:52
○ 2026-07-27 00:57:36
●A213.109.149.412026-03-06 → 2026-07-27 · 3 obs
● 2026-03-06 04:35:52
● 2026-07-27 00:57:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| courseform.com | ns1.stablehost.com, ns2.stablehost.com | 2 records |
✅ Authoritative Response
Server:162.159.24.175
NS records: ns1.stablehost.com, ns2.stablehost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseform.com (unsigned zone)
⏱️ Timing
Total: 246ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.109.149.41 |
| NS | 2 | ns1.stablehost.com, ns2.stablehost.com |
| MX | 1 | courseform.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:213.109.149.40 include:_spf.r |
| SOA | 1 | ns1.stablehost.com alerts.stablehost.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.stablehost.com, ns2.stablehost.com)
Analysis
Mail Server Role
courseform.com handles its own mail, functioning as its own mail server.
IP Addresses
courseform.com resolves to just one IP address, 213.109.149.41.
Two other host names, along with cpcalendars.casasdemateriales.com.mx, cpcalendars.papeleras.com.mx and vinaterias.com.mx, also share IP numbers with courseform.com.
Name Servers
DNS delegation for courseform.com points to two name servers: ns1.stablehost.com and ns2.stablehost.com.
courseform.com shares its NS records with other domains, for example spythis.net, telisa.net, denisengai.com and two others.
The name servers of courseform.com overlap at least partially with those of other domains — among them nhadatdian.com, rentaconvertiblecar.com, emrashqip.org and two more.
These name servers commonly appear alongside the name servers ns1.reliabledns.org and ns2.reliabledns.org.
Both ns1.stablehost.com and ns2.stablehost.com have a single IP address each — ns1.stablehost.com resolves to 162.159.24.175 while ns2.stablehost.com resolves to 162.159.25.144.
Mail Servers
courseform.com is served by just one mail server: courseform.com.
courseform.com has exactly one IP number: 213.109.149.41.