roundcubesolutions.com - robtex.com

roundcubesolutions.com

DNSSEC🔒 Signed (DS record present)
NSns11.kpn.net ⭐
A2a02:a47f:ac:1::1153🇳🇱 KPN2a02:a400::/25 B.V.
PTRns11.kpn.net
PTRns1.widexs.net
PTRns01.is.nl
PTRns1.widexs.nl
A213.75.63.33🇳🇱 PT213.75.0.0/17 PIADDR
PTRns11.kpn.net
PTRns1.widexs.net
PTRns01.is.nl
PTRns1.widexs.nl
NSns1.kpn.net
A2a02:a47f:ac:1::153🇳🇱 KPN2a02:a400::/25 B.V.
PTRns1.kpn.net
A194.151.228.10🇩🇪 KPN194.151.224.0/19 B.V.
PTRns1.kpn.net
TXTv=spf1 -all
SOAns1.kpn.netzonemaster@kpn.com 2026-04-09 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1776113752

Same first word

roundcubesolutions.com

DNS History

3 records (2 active, 1 former)

20162017201820192020202120222023202420252026NSns1.kpn.netns11.kpn.netns2.kpn.net
●NSns1.kpn.net2015-10-19 → 2026-04-13 · 2 obs
● 2015-10-19 03:25:42
● 2026-04-13 21:15:38
●NSns11.kpn.net2026-02-20 → 2026-04-13 · 3 obs
○ 2018-06-09 07:54:08
● 2026-02-20 14:20:58
● 2026-04-13 21:15:38
○NSns2.kpn.net2015-10-19 → 2018-06-09 · 4 obs
● 2015-10-19 03:25:42
● 2018-06-09 07:54:08
○ 2026-02-20 14:20:58
○ 2026-04-13 21:15:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
roundcubesolutions.comns1.kpn.net, ns11.kpn.net-

✅ Authoritative Response

Server:213.75.63.33

NS records: ns1.kpn.net, ns11.kpn.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 563ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.kpn.net, ns11.kpn.net
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns1.kpn.net zonemaster.kpn.com

Analysis

Name Servers

roundcubesolutions.com's delegation is to two name servers ns11.kpn.net and ns1.kpn.net.

roundcubesolutions.com shares the same name server configuration as other domains, such as cloudandrestore.info, bloem2b.demon.nl, jbfh.demon.nl, waaksaam.com and allisp.net.

roundcubesolutions.com shares name servers with other domains to at least some extent, for instance zegen-ict.nl and 218.136.82.in-addr.arpa.

Host names with two IP numbers: ns11.kpn.net points to 2a02:a47f:ac:1::1153 and 213.75.63.33; ns1.kpn.net points to 2a02:a47f:ac:1::153 and 194.151.228.10