tutorialsandcourses.com - dns.ninja
tutorialsandcourses.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 66.198.240.46🇺🇸 arborcloud66.198.240.0/24 | ||||||
| PTR | mi3-cl9-ats3.a2hosting.com | ||||||
| NS | ns1.a2hosting.com ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.a2hosting.com | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.a2hosting.com | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.a2hosting.com | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | mail.tutorialsandcourses.com ⭐ | ||||||
| A | 66.198.240.46🇺🇸 arborcloud66.198.240.0/24 | ||||||
| PTR | mi3-cl9-ats3.a2hosting.com | ||||||
| TXT | v=spf1 +a +mx +ip4:66.198.240.46 include:spf.a2hosting.com ~all | ||||||
| SOA | ns1.a2hosting.comroot@mi3-cl9-ats3.a2hosting.com 2026-09-27 #7 | ||||||
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=1791928399 | ||||||
Subdomains
mail.tutorialsandcourses.com |
Same first word
tutorialsandcourses.com |
Similar names
Previous names
Next names
DNS History
11 records (6 active, 5 former)
●NSns1.a2hosting.com2026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
●NSns2.a2hosting.com2026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
●NSns3.a2hosting.com2026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
●NSns4.a2hosting.com2026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
○NSns55.domaincontrol.com2015-06-23 → 2016-06-19 · 4 obs
● 2016-06-19 19:13:32
○ 2017-03-20 21:16:14
○ 2026-10-13 22:18:44
○NSns56.domaincontrol.com2015-06-23 → 2016-06-19 · 4 obs
● 2016-06-19 19:13:32
○ 2017-03-20 21:16:14
○ 2026-10-13 22:18:44
●MXmail.tutorialsandcourses.com2026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
○MXmailstore1.secureserver.net2015-06-23 → 2016-06-19 · 4 obs
● 2016-06-19 19:13:32
○ 2017-03-20 21:16:14
○ 2026-10-13 22:18:44
○MXsmtp.secureserver.net2015-06-23 → 2016-06-19 · 4 obs
● 2016-06-19 19:13:32
○ 2017-03-20 21:16:14
○ 2026-10-13 22:18:44
○A50.63.202.572015-06-23 → 2016-06-19 · 4 obs
● 2016-06-19 19:13:32
○ 2017-03-20 21:16:14
○ 2026-10-13 22:18:44
●A66.198.240.462026-09-27 → 2026-10-13 · 3 obs
● 2026-09-27 09:46:24
● 2026-10-13 22:18:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net... | - |
| tutorialsandcourses.com | ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com | 4 records |
✅ Authoritative Response
Server:13.248.158.180
NS records: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com, ns4.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorialsandcourses.com (unsigned zone)
⏱️ Timing
Total: 520ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 66.198.240.46 |
| NS | 4 | ns3.a2hosting.com, ns4.a2hosting.com... |
| MX | 1 | mail.tutorialsandcourses.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:66.198.240.46 include |
| SOA | 1 | ns1.a2hosting.com root.mi3-cl9-ats3.a2ho |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com...)
Analysis
Hierarchy
mail.tutorialsandcourses.com is delegated beneath tutorialsandcourses.com.
IP Addresses
tutorialsandcourses.com resolves to just one IP address, 66.198.240.46.
Two other host names, along with westcoastflies.ca, nextlevellocksmith.ca and morphoconsultores.com, also share IP numbers with tutorialsandcourses.com.
Name Servers
The NS records for tutorialsandcourses.com point to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
There is at least partial name server overlap between tutorialsandcourses.com and other domains — amigovagabundoteatro.com, sarocaplana.net, debuckfamilyfunfarm.com and two more among them.
These name servers regularly appear alongside ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com and 5 other name servers in NS record sets.
The hosts ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com all resolve to exactly one IP address each: 13.248.158.180, 75.2.118.134, 76.223.26.245 and 99.83.147.209 respectively.
Mail Servers
The sole mail server for tutorialsandcourses.com is mail.tutorialsandcourses.com.
mail.tutorialsandcourses.com resolves to 66.198.240.46 and no other IP number.