openonline.nl - robtex.com

openonline.nl

DNSSEC🔒 Signed (DS record present)
A5.157.87.204🇳🇱 CLDIN-NL5.157.80.0/21
PTRredirect.yourhosting.nl
NSns3.firstfind.nl ⭐
A2a01:b940:1057::53🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING
PTRns3.firstfind.nl
A5.157.86.222🇳🇱 CLDIN-NL5.157.80.0/21
PTRns3.firstfind.nl
NSns4.firstfind.nl
A2a01:b940:1057::54🇳🇱 CLDIN-NL2a01:b940::/29 YOURHOSTING
A5.157.87.222🇳🇱 CLDIN-NL5.157.80.0/21
PTRns4.firstfind.nl
NSns5.firstfind.net
A2a03:b0c0:2:d0::1183:f001🇳🇱 DIGITALOCEAN2a03:b0c0:2::/48 DigitalOcean
PTRns5.firstfind.net
A178.128.248.2🇳🇱 DIGITALOCEAN178.128.240.0/20 DigitalOcean
PTRns5.firstfind.net
MXserver40.firstfind.nl ⭐
A5.157.84.149🇳🇱 CLDIN-NL5.157.80.0/21
PTRserver40.firstfind.nl
SOAns3.firstfind.nlhostmaster@firstfind.nl 2020-04-17 #0

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-07-25 02:00:01 +0000 (EPOCH 1784944801)
SOAns1.dns.nldns@sidn.nl 2026-07-25 #4

Same first word

openonline.edu.cn
openonline.pl
openonline.org
openonline.ca
openonline.com
openonline.co.kr
openonline.co.uk
openonline.com.cn
openonline.cn
openonline.uk
openonline.nl
openonline.net

Similar names

onlineopen.com

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSns3.firstfind.nlns4.firstfind.nlns5.firstfind.netns3.tobeonline.nlns4.tobeonline.nlMXserver40.firstfind.nlmail.openonline.nlmail.server3.tobeonline.nlA5.157.87.20494.124.95.1094.124.95.5
●NSns3.firstfind.nl2026-06-11 → 2026-07-25 · 3 obs
○ 2017-04-10 13:06:12
● 2026-06-11 08:43:26
● 2026-07-25 02:57:34
○NSns3.tobeonline.nl2015-07-16 → 2017-04-10 · 4 obs
● 2015-07-16 08:34:52
● 2017-04-10 13:06:12
○ 2026-06-11 08:43:26
○ 2026-07-25 02:57:34
●NSns4.firstfind.nl2026-06-11 → 2026-07-25 · 3 obs
○ 2017-04-10 13:06:12
● 2026-06-11 08:43:26
● 2026-07-25 02:57:34
○NSns4.tobeonline.nl2015-07-16 → 2017-04-10 · 4 obs
● 2015-07-16 08:34:52
● 2017-04-10 13:06:12
○ 2026-06-11 08:43:26
○ 2026-07-25 02:57:34
●NSns5.firstfind.net2026-06-11 → 2026-07-25 · 3 obs
○ 2017-04-10 13:06:12
● 2026-06-11 08:43:26
● 2026-07-25 02:57:34
○MXmail.openonline.nl2017-04-10 → 2017-04-10 · 4 obs
○ 2016-09-13 18:25:48
● 2017-04-10 13:06:12
○ 2026-06-11 08:43:26
○ 2026-07-25 02:57:34
○MXmail.server3.tobeonline.nl2015-07-16 → 2016-09-13 · 4 obs
● 2015-07-16 08:34:52
● 2016-09-13 18:25:48
○ 2017-04-10 13:06:12
○ 2026-07-25 02:57:34
●MXserver40.firstfind.nl2026-06-11 → 2026-07-25 · 15 obs
○ 2017-04-10 13:06:12
● 2026-06-11 08:43:26
● 2026-06-11 15:06:40
○ 2026-06-13 21:07:38
● 2026-06-22 22:08:12
○ 2026-06-25 09:45:50
● 2026-06-26 14:08:20
○ 2026-06-27 10:51:32
● 2026-07-04 09:53:14
○ 2026-07-04 20:51:26
● 2026-07-08 00:03:34
○ 2026-07-09 02:42:30
● 2026-07-17 09:00:44
○ 2026-07-22 07:46:04
● 2026-07-25 02:57:34
●A5.157.87.2042026-06-11 → 2026-07-25 · 15 obs
○ 2017-04-10 13:06:12
● 2026-06-11 08:43:26
● 2026-06-11 15:06:40
○ 2026-06-13 21:07:38
● 2026-06-22 22:08:12
○ 2026-06-25 09:45:50
● 2026-06-26 14:08:20
○ 2026-06-27 10:51:32
● 2026-07-04 09:53:14
○ 2026-07-04 20:51:26
● 2026-07-08 00:03:34
○ 2026-07-09 02:42:30
● 2026-07-17 09:00:44
○ 2026-07-22 07:46:04
● 2026-07-25 02:57:34
○A94.124.95.102015-07-16 → 2016-09-13 · 4 obs
● 2015-07-16 08:34:52
● 2016-09-13 18:25:48
○ 2017-04-10 13:06:12
○ 2026-07-25 02:57:34
○A94.124.95.52017-04-10 → 2017-04-10 · 4 obs
○ 2016-09-13 18:25:48
● 2017-04-10 13:06:12
○ 2026-06-11 08:43:26
○ 2026-07-25 02:57:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
openonline.nlns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net-

✅ Authoritative Response

Server:5.157.87.222

NS records: ns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 579ms | Queries: -

📄 Records

TypeCountSample Data
A15.157.87.204
NS3ns3.firstfind.nl, ns5.firstfind.net...
MX1server40.firstfind.nl (pri: 10)
SOA1ns3.firstfind.nl hostmaster.firstfind.nl

Analysis

IP Addresses

openonline.nl has exactly one IP address — 5.157.87.204.

katoomba.eu, zonneschermwinkel.nl, xanic.nl plus two other host names have IP numbers in common with openonline.nl.

Name Servers

openonline.nl is delegated to three name servers: ns5.firstfind.net, ns3.firstfind.nl and ns4.firstfind.nl.

openonline.nl partially shares its NS delegation with several other domains, including log-out.nl, roneekels.nl, hekoprojecten.nl and two others.

ns5.firstfind.net, ns3.firstfind.nl and ns4.firstfind.nl each resolve to two IP addresses: ns5.firstfind.net resolves to 178.128.248.2 and 2a03:b0c0:2:d0::1183:f001; ns3.firstfind.nl resolves to 5.157.86.222 and 2a01:b940:1057::53; ns4.firstfind.nl resolves to 5.157.87.222 and 2a01:b940:1057::54.

Mail Servers

openonline.nl uses one mail server — server40.firstfind.nl.

The mail server setup of openonline.nl matches that of other domains such as crealanta.com, tanzo.ch, bupble.com and two others.

At least some of the mail servers used by openonline.nl are shared with other domains: idmk.nl, leosteijn.nl, circleoftrust.amsterdam and two others among them.

The mail servers mx1.firstfind.nl and mx2.firstfind.nl regularly co-occur with these mail servers.

server40.firstfind.nl resolves to a single IP number: 5.157.84.149.