courses-free.com - robtex.com
courses-free.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 173.247.218.48🇨🇦 NETELLIGENT173.247.218.0/24 | ||||||
| NS | ns1.sitesell.com ⭐ | ||||||
| A | 66.43.48.19🇨🇦 NETELLIGENT66.43.48.0/24 SiteSell Inc route advertisement | ||||||
| PTR | ns1.sitesell.com | ||||||
| NS | ns2.sitesell.com | ||||||
| A | 66.43.48.20🇨🇦 NETELLIGENT66.43.48.0/24 SiteSell Inc route advertisement | ||||||
| PTR | ns2.sitesell.com | ||||||
| MX | webmail1.sitebuildit.com ⭐ | ||||||
| A | 66.43.51.5🇨🇦 NETELLIGENT66.43.51.0/24 | ||||||
| PTR | webmail1.sitebuildit.com | ||||||
| TXT | v=spf1 include:_spf-client-servers.sitesellmail.com ?all | ||||||
| SOA | ns1.sitesell.comhostmaster@sitesell.com 2024-01-19 #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=1775051957 | ||||||
Same first word
courses-free.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.sitesell.com2015-07-23 → 2026-04-01 · 2 obs
● 2026-04-01 14:18:08
●NSns2.sitesell.com2015-07-23 → 2026-04-01 · 2 obs
● 2026-04-01 14:18:08
●MXwebmail1.sitebuildit.com2015-07-23 → 2026-04-01 · 2 obs
● 2026-04-01 14:18:08
●A173.247.218.482026-03-11 → 2026-04-01 · 3 obs
● 2026-03-11 20:10:02
● 2026-04-01 14:18:08
○A66.43.50.302015-07-23 → 2017-04-08 · 4 obs
● 2017-04-08 23:03:00
○ 2026-03-11 20:10:02
○ 2026-04-01 14:18:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| courses-free.com | ns1.sitesell.com, ns2.sitesell.com | 2 records |
✅ Authoritative Response
Server:66.43.48.20
NS records: ns1.sitesell.com, ns2.sitesell.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courses-free.com (unsigned zone)
⏱️ Timing
Total: 88ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 173.247.218.48 |
| NS | 2 | ns1.sitesell.com, ns2.sitesell.com |
| MX | 1 | webmail1.sitebuildit.com (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-client-servers.sites |
| SOA | 1 | ns1.sitesell.com hostmaster.sitesell.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.sitesell.com, ns2.sitesell.com)
Analysis
IP Addresses
courses-free.com points to a single IP number: 173.247.218.48.
Other host names, for instance familyfuncartoons.com, tvcinemaapp.com, www.creative-writing-ideas-and-activities.com, www.maltesemaniac.com and creative-writing-ideas-and-activities.com share IP numbers with courses-free.com.
Name Servers
Delegation for courses-free.com rests with two name servers, ns1.sitesell.com and ns2.sitesell.com.
courses-free.com shares the same name server setup as other domains, including maltainfoguide.com, solar-energy-for-home.com, all-about-forensic-psychology.com, child-bible-lessons.com and debt-elimination-program-reviews.com.
Host names with one IP number: ns1.sitesell.com points to 66.43.48.19; ns2.sitesell.com points to 66.43.48.20.
Mail Servers
courses-free.com is handled by a single mail server, webmail1.sitebuildit.com.
courses-free.com uses the same mail server configuration as other domains, such as karenmblack.com, holidays-and-observances.com, humor-funny.com, soupsage.com and dietmoderators.com.
courses-free.com shares mail servers with other domains, at least partially, for instance beautifulpacificnorthwest.com and all-concrete-cement.com.
webmail1.sitebuildit.com points to a single IP: 66.43.51.5.