u-online.org - robtex.com

u-online.org

DNSSEC🔒 Signed (DS record present)
A81.169.246.139🇩🇪 STRATO81.169.128.0/17 AG
PTRwww.u-online.org
NSns1.thednscompany.com ⭐
A2a02:cc9:0:63::233🇳🇱 LEASEWEB-NL-AMS-012a02:cc9::/32
PTRns1.thednscompany.com
A185.145.63.233🇳🇱 LEASEWEB-NL-AMS-01185.145.60.0/22
PTRns1.thednscompany.com
NSns2.thednscompany.com
A2001:1af8:4700:a112:13::50🇳🇱 LEASEWEB-NL-AMS-012001:1af8::/32 NL-LEASEWEB-20040408 Leaseweb
PTRns2.thednscompany.com
A37.48.115.145🇳🇱 LEASEWEB-NL-AMS-0137.48.64.0/18 LEASEWEB
PTRns2.thednscompany.com
NSns3.thednscompany.com
A2a01:7c8:aab5:5b3::1🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network
PTRns3.thednscompany.com
A149.210.192.124🇳🇱 TRANSIP-AS149.210.128.0/17 TransIP BV Amsterdam, The Netherlands
PTRns3.thednscompany.com
SOAns1.thednscompany.comns1@thednscompany.com 2023-04-10 #1

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1776154687

Subdomains

hosted-by.u-online.org
mail.u-online.org
www.u-online.org

Same first word

u-online.ru
u-online.nl
u-online.org
u-online.com

Similar names

le-union.com
elon-inu.com

DNS History

18 records (4 active, 14 former)

20162017201820192020202120222023202420252026NSns1.thednscompany.comns2.thednscompany.comns3.thednscompany.comdns1.name-services.comdns2.name-services.comdns3.name-services.comdns4.name-services.comdns5.name-services.comsns1.4u-dns.comsns2.4u-dns.comMXeforwardct.name-services.comeforwardct2.name-services.comeforwardct3.name-services.commail.u-online.orgA81.169.246.13985.214.156.24698.124.198.198.124.199.1
○NSdns1.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○NSdns2.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○NSdns3.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○NSdns4.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○NSdns5.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
●NSns1.thednscompany.com2026-04-12 → 2026-04-14 · 3 obs
○ 2017-03-31 00:29:06
● 2026-04-12 16:16:32
● 2026-04-14 08:33:36
●NSns2.thednscompany.com2026-04-12 → 2026-04-14 · 3 obs
○ 2017-03-31 00:29:06
● 2026-04-12 16:16:32
● 2026-04-14 08:33:36
●NSns3.thednscompany.com2026-04-12 → 2026-04-14 · 3 obs
○ 2017-03-31 00:29:06
● 2026-04-12 16:16:32
● 2026-04-14 08:33:36
○NSsns1.4u-dns.com2015-12-12 → 2017-03-31 · 5 obs
○ 2015-08-06 02:36:00
● 2015-12-12 06:06:36
● 2017-03-31 00:29:06
○ 2026-04-12 16:16:32
○ 2026-04-14 08:33:36
○NSsns2.4u-dns.com2015-12-12 → 2017-03-31 · 5 obs
○ 2015-08-06 02:36:00
● 2015-12-12 06:06:36
● 2017-03-31 00:29:06
○ 2026-04-12 16:16:32
○ 2026-04-14 08:33:36
○MXeforwardct.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○MXeforwardct2.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○MXeforwardct3.name-services.com2015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○MXmail.u-online.org2015-12-12 → 2017-03-31 · 5 obs
○ 2015-08-06 02:36:00
● 2015-12-12 06:06:36
● 2017-03-31 00:29:06
○ 2026-04-12 16:16:32
○ 2026-04-14 08:33:36
●A81.169.246.1392026-04-12 → 2026-04-14 · 3 obs
○ 2017-03-31 00:29:06
● 2026-04-12 16:16:32
● 2026-04-14 08:33:36
○A85.214.156.2462015-12-12 → 2017-03-31 · 5 obs
○ 2015-08-06 02:36:00
● 2015-12-12 06:06:36
● 2017-03-31 00:29:06
○ 2026-04-12 16:16:32
○ 2026-04-14 08:33:36
○A98.124.198.12015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2015-12-12 06:06:36
○ 2026-04-14 08:33:36
○A98.124.199.12015-08-06 → 2015-08-06 · 3 obs
● 2015-08-06 02:36:00
○ 2026-04-12 16:16:32
○ 2026-04-14 08:33:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org-
u-online.orgns3.thednscompany.com, ns1.thednscompany.com, ns2.thednscompany.com-

✅ Authoritative Response

Server:37.48.115.145

NS records: ns3.thednscompany.com, ns1.thednscompany.com, ns2.thednscompany.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 828ms | Queries: -

📄 Records

TypeCountSample Data
A181.169.246.139
NS3ns2.thednscompany.com, ns3.thednscompany.com...
SOA1ns1.thednscompany.com ns1.thednscompany.

Analysis

Hierarchy

u-online.org is a parent of hosted-by.u-online.org, mail.u-online.org and www.u-online.org.

IP Addresses

u-online.org points to a single IP: 81.169.246.139.

Other host names, for instance www.u-online.org, organisatiebureaus.nl, hosted-by.u-online.org, mail.organisatiebureaus.nl and mail.u-online.org share IP numbers with u-online.org.

Name Servers

u-online.org is delegated to three name servers: ns1.thednscompany.com, ns2.thednscompany.com and ns3.thednscompany.com.

u-online.org partially shares name servers with other domains; examples include returnmenow.com, yoohcan.com, adesk.nl, pocketreader.nl and strafcassatie.eu.

Host names with two IP numbers:

ns1.thednscompany.com points to 2a02:cc9:0:63::233 and 185.145.63.233.

ns2.thednscompany.com points to 2001:1af8:4700:a112:13::50 and 37.48.115.145.

ns3.thednscompany.com points to 2a01:7c8:aab5:5b3::1 and 149.210.192.124.