tutorialschool.com - dns.ninja
tutorialschool.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.148.248.143🇺🇸 EIG-29873207.148.248.0/24 | ||||||
| NS | ns.buydomains.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
| NS | this-domain-for-sale.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
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=1785005857 | ||||||
Subdomains
Same first word
tutorialschool.org |
tutorialschool.com |
DNS History
7 records (3 active, 4 former)
●NSns.buydomains.com2026-02-16 → 2026-07-25 · 3 obs
● 2026-02-16 04:32:42
● 2026-07-25 19:08:18
○NSns.tutorialschool.com2015-06-22 → 2017-02-07 · 4 obs
● 2017-02-07 11:32:34
○ 2026-02-16 04:32:42
○ 2026-07-25 19:08:18
●NSthis-domain-for-sale.com2026-02-16 → 2026-07-25 · 3 obs
● 2026-02-16 04:32:42
● 2026-07-25 19:08:18
○MXmail.tutorialschool.com2015-06-22 → 2026-02-17 · 4 obs
● 2026-02-17 01:41:06
○ 2026-02-17 09:38:18
○ 2026-07-25 19:08:18
○A184.105.154.1172015-06-22 → 2017-02-07 · 4 obs
● 2017-02-07 11:32:34
○ 2020-02-12 08:44:10
○ 2026-07-25 19:08:18
○A198.57.247.1932020-02-12 → 2020-02-12 · 4 obs
● 2020-02-12 08:44:10
○ 2026-02-16 04:32:42
○ 2026-07-25 19:08:18
●A207.148.248.1432026-02-16 → 2026-07-25 · 6 obs
● 2026-02-16 04:32:42
● 2026-03-14 10:49:02
○ 2026-03-17 02:46:50
● 2026-05-14 15:31:10
● 2026-07-25 19:08:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| tutorialschool.com | ns.buydomains.com, this-domain-for-sale.com | 2 records |
✅ Authoritative Response
Server:52.20.26.87
NS records: ns.buydomains.com, this-domain-for-sale.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorialschool.com (unsigned zone)
⏱️ Timing
Total: 110ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.148.248.143 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)
Analysis
Hierarchy
tutorialschool.com is the parent domain of www.tutorialschool.com, mail.tutorialschool.com and ns.tutorialschool.com.
IP Addresses
tutorialschool.com has exactly one IP address — 207.148.248.143.
bill.tdcenergy.com, media.cookingsoups.com, hostmaster.npkids.com plus two other host names have IP numbers in common with tutorialschool.com.
Name Servers
tutorialschool.com has two authoritative name servers — this-domain-for-sale.com and ns.buydomains.com.
The name server configuration of tutorialschool.com is shared with other domains, for instance dataprotection.net, asqa.net, eicnet.com and two others.
The name servers for tutorialschool.com overlap at least partially with those of other domains — for example biodieselgenerators.com.
this-domain-for-sale.com and ns.buydomains.com each point to one IP address — 52.20.26.87.
The host names this-domain-for-sale.com and ns.buydomains.com both resolve to 52.20.26.87 IP addresses.