schooltool.nl - robtex.com
schooltool.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-08-16 19:30:01 +0000 (EPOCH 1786908601) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-08-16 #39 | ||||||
Previously MX for
schooltool.nl |
Subdomains
mail.schooltool.nl |
Same first word
schooltool.eu |
schooltool.de |
schooltool.org |
schooltool.com |
schooltool.info |
schooltool.us |
schooltool.be |
schooltool.nl |
schooltool.ch |
schooltool.net |
schooltool.site |
Similar names
DNS History
10 records (6 active, 4 former)
●NSchristina.neostrada.nl2026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
●NSlisa.neostrada.nl2026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
○NSns15.e-ns.nl2015-08-15 → 2016-12-24 · 4 obs
● 2016-12-24 00:31:22
○ 2026-05-07 05:12:16
○ 2026-08-16 20:57:52
○NSns16.e-ns.nl2015-08-15 → 2016-12-24 · 4 obs
● 2016-12-24 00:31:22
○ 2026-05-07 05:12:16
○ 2026-08-16 20:57:52
●NSsandra.neostrada.nl2026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
●MXmail.schooltool.nl2026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
○MXschooltool.nl2015-08-15 → 2016-12-24 · 4 obs
● 2016-12-24 00:31:22
○ 2026-05-07 05:12:16
○ 2026-08-16 20:57:52
●A2a02:40c0:1:2:7:0:d:ecaf2026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
●A31.186.169.412026-05-07 → 2026-08-16 · 3 obs
● 2026-05-07 05:12:16
● 2026-08-16 20:57:52
○A77.222.86.122015-08-15 → 2016-12-24 · 4 obs
● 2016-12-24 00:31:22
○ 2026-05-07 05:12:16
○ 2026-08-16 20:57:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| schooltool.nl | lisa.neostrada.nl, sandra.neostrada.nl, christina.neostrada.nl | 6 records |
✅ Authoritative Response
Server:66.228.38.167
NS records: lisa.neostrada.nl, sandra.neostrada.nl, christina.neostrada.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 236ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.186.169.41 |
| AAAA | 1 | 2a02:40c0:1:2:7:0:d:ecaf |
| NS | 3 | lisa.neostrada.nl, christina.neostrada.nl... |
| MX | 1 | mail.schooltool.nl (pri: 10) |
| TXT | 2 | 2d283d9340855932a80a2e95eb55874b52091ed6, v=spf1 a mx include:spf.totaalholding.nl |
| SOA | 1 | sandra.neostrada.nl hostmaster.neostrada |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (lisa.neostrada.nl, lisa.neostrada.nl, sandra.neostrada.nl...)
Analysis
Hierarchy
schooltool.nl serves as the parent of mail.schooltool.nl.
IP Addresses
schooltool.nl directs to two IP numbers, 31.186.169.41 and 2a02:40c0:1:2:7:0:d:ecaf
Among the host names that share IP numbers with schooltool.nl are crunchbar.nl, camagra.eu, mickerslunchroom.nl and two others.
Name Servers
schooltool.nl is served by three name servers: christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl.
schooltool.nl has at least partial name server overlap with other domains, such as finenco.nl, budoshop.be, vua-ams.nl and two others.
These name servers tend to appear together with the name servers drie.dnssrv.nl, een.dnssrv.nl and twee.dnssrv.nl.
The hostnames christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl each direct to two IP addresses — christina.neostrada.nl to 172.104.143.74 and 2a01:7e01::f03c:91ff:fee9:95bd, lisa.neostrada.nl to 66.228.38.167 and 2600:3c03::f03c:91ff:fe0a:b97, and sandra.neostrada.nl to 31.25.98.57 and 2a05:1500:702:0:1c00:3eff:fe00:35.
Mail Servers
schooltool.nl routes its mail through a single mail server, mail.schooltool.nl.
mail.schooltool.nl has two IP addresses: 185.94.230.73 and 2a00:f10:13f:0:1c00:acff:fe00:136.