duikcollege.com - robtex.com
duikcollege.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 85.158.203.116🇳🇱 CYSO-AS85.158.200.0/21 Cyso Hosting B.V. Block | ||||||
| PTR | free.cyso.net | ||||||
| NS | ns0.transip.net ⭐ | ||||||
| A | 2a01:7c8:dddd:195::195🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | ns0.transip.net | ||||||
| A | 195.135.195.195🇮🇹 TRANSIP-AS195.135.195.0/24 TransIP B.V. | ||||||
| PTR | ns0.transip.net | ||||||
| NS | ns1.transip.nl | ||||||
| A | 2a01:7c8:7000:195::195🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | ns1.transip.nl | ||||||
| A | 195.8.195.195🇳🇱 TRANSIP-AS195.8.195.0/24 TransIP B.V. | ||||||
| PTR | ns1.transip.nl | ||||||
| NS | ns2.transip.eu | ||||||
| A | 2a01:7c8:f:c1f::195🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | ns2.transip.eu | ||||||
| A | 37.97.199.195🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands | ||||||
| PTR | ns2.transip.eu | ||||||
| MX | duikcollege.com ⭐ 🔒 | ||||||
| A | 85.158.203.116🇳🇱 CYSO-AS85.158.200.0/21 Cyso Hosting B.V. Block | ||||||
| PTR | free.cyso.net | ||||||
| SOA | ns0.transip.nethostmaster@transip.nl 2021-09-06 #1 | ||||||
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=1776110072 | ||||||
MX for
duikcollege.com |
Previously MX for
mail.duikcollege.com |
Subdomains
mail.duikcollege.com |
Same first word
duikcollege.com |
DNS History
5 records (5 active, 0 former)
●NSns0.transip.net2015-07-13 → 2026-04-13 · 2 obs
● 2026-04-13 20:15:36
●NSns1.transip.nl2015-07-13 → 2026-04-13 · 2 obs
● 2026-04-13 20:15:36
●NSns2.transip.eu2015-07-13 → 2026-04-13 · 2 obs
● 2026-04-13 20:15:36
●MXduikcollege.com2015-07-13 → 2026-04-13 · 2 obs
● 2026-04-13 20:15:36
●A85.158.203.1162015-07-13 → 2026-04-13 · 2 obs
● 2026-04-13 20:15:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| duikcollege.com | ns1.transip.nl, ns0.transip.net, ns2.transip.eu | - |
✅ Authoritative Response
Server:37.97.199.195
NS records: ns1.transip.nl, ns0.transip.net, ns2.transip.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1099ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.158.203.116 |
| NS | 3 | ns1.transip.nl, ns2.transip.eu... |
| MX | 1 | duikcollege.com (pri: 10) |
| SOA | 1 | ns0.transip.net hostmaster.transip.nl |
Analysis
Hierarchy
duikcollege.com is a parent of mail.duikcollege.com.
Mail Server Role
duikcollege.com serves as the mail server for duikcollege.com.
IP Addresses
duikcollege.com points to a single IP number: 85.158.203.116.
Other host names, for instance start2dive.eu, share IP numbers with duikcollege.com.
Name Servers
The delegation for duikcollege.com is handled by three name servers: ns2.transip.eu, ns0.transip.net and ns1.transip.nl.
duikcollege.com at least partially shares name servers with other domains, for instance christelijkestudent.nl, forgirlsonly.be, chiralix.com, livewall.co.uk and sgariboldi.nl.
Two IP numbers per host:
ns2.transip.eu points to 2a01:7c8:f:c1f::195 and 37.97.199.195.
ns0.transip.net points to 2a01:7c8:dddd:195::195 and 195.135.195.195.
ns1.transip.nl points to 2a01:7c8:7000:195::195 and 195.8.195.195.
Mail Servers
A single mail server handles duikcollege.com.
duikcollege.com points to a single IP: 85.158.203.116.