instructie.org - robtex.com
instructie.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a06:2ec0:1::100🇳🇱 AS-ZXCS2a06:2ec0::/32 | ||||||
| PTR | web0100.zxcs.nl | ||||||
| A | 185.104.29.46🇳🇱 AS-ZXCS185.104.29.0/24 | ||||||
| NS | ns.zxcs.nl ⭐ | ||||||
| A | 2a06:2ec0:1::10🇳🇱 AS-ZXCS2a06:2ec0::/32 | ||||||
| PTR | ns1.zxcs.nl | ||||||
| A | 185.104.28.19🇳🇱 AS-ZXCS185.104.28.0/24 | ||||||
| PTR | ns1.zxcs.nl | ||||||
| NS | ns.zxcs.be | ||||||
| A | 2a03:b0c0:3:d0::116:2001🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean | ||||||
| PTR | ns2.zxcs.nl | ||||||
| A | 46.101.179.64🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean | ||||||
| PTR | ns2.zxcs.nl | ||||||
| NS | ns.zxcs.eu | ||||||
| A | 2a03:b0c0:2:d0::57:1001🇳🇱 DIGITALOCEAN2a03:b0c0:2::/48 DigitalOcean | ||||||
| PTR | ns3.zxcs.nl | ||||||
| A | 178.62.208.8🇳🇱 DIGITALOCEAN178.62.192.0/18 DigitalOcean | ||||||
| PTR | ns3.zxcs.nl | ||||||
| MX | mail.instructie.org ⭐ | ||||||
| A | 2a06:2ec0:1::100🇳🇱 AS-ZXCS2a06:2ec0::/32 | ||||||
| PTR | web0100.zxcs.nl | ||||||
| A | 185.104.29.46🇳🇱 AS-ZXCS185.104.29.0/24 | ||||||
| PTR | web0100.zxcs.nl | ||||||
| TXT | v=spf1 a mx ip4:185.104.29.46 ip6:2a06:2ec0:1:0:0:0:0:100 include:filter-out.... | ||||||
| SOA | ns.zxcs.nlhostmaster@instructie.org 2026-07-14 #4 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784104287 | ||||||
Subdomains
mail.instructie.org |
Same first word
instructie.com |
instructie.be |
instructie.org |
DNS History
6 records (6 active, 0 former)
●MXmail.instructie.org2026-03-29 → 2026-07-15 · 2 obs
● 2026-07-15 08:54:36
●A185.104.29.462026-03-29 → 2026-07-15 · 2 obs
● 2026-07-15 08:54:36
●A2a06:2ec0:1::1002026-03-29 → 2026-07-15 · 2 obs
● 2026-07-15 08:54:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| instructie.org | ns.zxcs.eu, ns.zxcs.nl, ns.zxcs.be | - |
✅ Authoritative Response
Server:185.104.28.19
NS records: ns.zxcs.eu, ns.zxcs.nl, ns.zxcs.be
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for instructie.org (unsigned zone)
⏱️ Timing
Total: 763ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.104.29.46 |
| AAAA | 1 | 2a06:2ec0:1::100 |
| NS | 3 | ns.zxcs.eu, ns.zxcs.nl... |
| MX | 1 | mail.instructie.org (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:185.104.29.46 ip6:2a06:2 |
| SOA | 1 | ns.zxcs.nl hostmaster.instructie.org |
Analysis
Hierarchy
The domain mail.instructie.org falls under the parent instructie.org.
IP Addresses
instructie.org has two IP addresses: 185.104.29.46 and 2a06:2ec0:1::100
rijschool-troy.nl, redloveappel.eu, heezen-mode.nl plus two other host names have IP numbers in common with instructie.org.
Name Servers
instructie.org is served by three name servers: ns.zxcs.be, ns.zxcs.eu and ns.zxcs.nl.
At least some of instructie.org's name servers are shared with other domains, for example omorfi.nl, nmng.nl, fatmakoserkaya.nl and two more.
It is common for these name servers to be used in conjunction with the name servers ns1.zxcs.nl, ns2.zxcs.nl and ns3.zxcs.nl.
The hostnames ns.zxcs.be, ns.zxcs.eu and ns.zxcs.nl each direct to two IP addresses — ns.zxcs.be to 46.101.179.64 and 2a03:b0c0:3:d0::116:2001, ns.zxcs.eu to 178.62.208.8 and 2a03:b0c0:2:d0::57:1001, and ns.zxcs.nl to 185.104.28.19 and 2a06:2ec0:1::10.
Mail Servers
instructie.org uses one mail server — mail.instructie.org.
mail.instructie.org directs to two IP numbers, 185.104.29.46 and 2a06:2ec0:1::100.