notebook.school - robtex.com
notebook.school
school
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.school ⭐ | ||||||
| NS | v0n1.nic.school | ||||||
| NS | v0n2.nic.school | ||||||
| NS | v0n3.nic.school | ||||||
| NS | v2n0.nic.school | ||||||
| NS | v2n1.nic.school | ||||||
| SOA | v0n0.nic.schoolhostmaster@donuts.email serial=1772411974 | ||||||
Subdomains
www.notebook.school |
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns-cloud-a1.googledomains.com2019-12-20 → 2026-03-02 · 2 obs
● 2026-03-02 01:57:10
●NSns-cloud-a2.googledomains.com2019-12-20 → 2026-03-02 · 2 obs
● 2026-03-02 01:57:10
●NSns-cloud-a3.googledomains.com2019-12-20 → 2026-03-02 · 2 obs
● 2026-03-02 01:57:10
●NSns-cloud-a4.googledomains.com2019-12-20 → 2026-03-02 · 2 obs
● 2026-03-02 01:57:10
●MXnotebook-school.mail.protection.outlook.com2019-12-20 → 2026-03-02 · 2 obs
● 2026-03-02 01:57:10
●A139.84.141.742026-03-02 → 2026-03-02 · 3 obs
● 2026-03-02 00:47:08
● 2026-03-02 01:57:10
○A34.95.108.1842019-12-20 → 2019-12-20 · 3 obs
○ 2026-03-02 00:47:08
○ 2026-03-02 01:57:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| school | v2n1.nic.school, v2n0.nic.school, v0n3.nic.school, v0n0.nic.school... | 12 records |
| notebook.school | ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a1.googledomains.com, ns-cloud-a4.googledomains.com | - |
✅ Authoritative Response
Server: 216.239.36.106
NS records: ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a1.googledomains.com, ns-cloud-a4.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 499ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.84.141.74 |
| NS | 4 | ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com... |
| MX | 1 | notebook-school.mail.protection.outlook. |
| TXT | 2 | google-site-verification=XCOUin7BjgSvmwB, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns-cloud-a1.googledomains.com cloud-dns- |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v2n1.nic.school, v2n0.nic.school, v0n3.nic.school...)
Analysis
Hierarchy
notebook.school is a parent of www.notebook.school.
IP Addresses
notebook.school points to a single IP number: 139.84.141.74.
Other host names such as wpdev-edujournal.tempurl.host and anrc.org.sg share IP numbers with notebook.school.
Name Servers
notebook.school is delegated to four name servers: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com.
notebook.school at least partially shares name servers with other domains, for instance tamilewis.com, visitstoried.com, taillonmedia.com, harrisonn.com and atom-trade.com.
Host names with two IP numbers:
ns-cloud-a1.googledomains.com points to: 2001:4860:4802:32::6a and 216.239.32.106.
ns-cloud-a2.googledomains.com points to: 2001:4860:4802:34::6a and 216.239.34.106.
ns-cloud-a3.googledomains.com points to: 2001:4860:4802:36::6a and 216.239.36.106.
ns-cloud-a4.googledomains.com points to: 2001:4860:4802:38::6a and 216.239.38.106.
Mail Servers
notebook.school is handled by a single mail server, notebook-school.mail.protection.outlook.com.
notebook-school.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:cc2c::, 2a01:111:f403:cc2c::1, 2a01:111:f403:cc2d::, 2a01:111:f403:cc2d::1, 52.101.144.0, 52.101.144.3, 52.101.145.0 and 52.101.145.2.