dcsymposium.nl - robtex.com

dcsymposium.nl

DNSSEC⚠️ Not signed
A81.92.91.56🇫🇷 NAMESHIELD81.92.90.0/23 DC2-1
A185.65.58.55🇫🇷 NAMESHIELD185.65.58.0/23
NSobs.ns1.fr ⭐
A2a01:c8:200:111::46🇫🇷 NAMESHIELD2a01:c8:200::/40 DC1-1
PTRobs.ns1.fr
A2a01:c8:300:111::46🇫🇷 NAMESHIELD2a01:c8:300::/40 DC2-1
PTRobs.ns1.fr
A81.92.91.46🇫🇷 NAMESHIELD81.92.90.0/23 DC2-1
PTRobs.ns1.fr
A185.65.58.46🇫🇷 NAMESHIELD185.65.58.0/23
PTRobs.ns1.fr
NSns2.observatoiredesmarques.fr
A2a00:1630:210:3::39🇳🇱 i3Dnet2a00:1630::/32 i3D.net B.V. Rotterdam Netherlands
PTRns2.observatoiredesmarques.fr
A2a02:6ea0:c776::43🇩🇪 CDN772a02:6ea0:c700::/40 _IPv6_FRA-1
PTRns2.observatoiredesmarques.fr
A2a02:6ea0:cf2b::1🇩🇪 CDN772a02:6ea0:cf00::/40 _IPv6_FRB_1
PTRns2.observatoiredesmarques.fr
A89.222.108.240🇬🇧 CDN7789.222.108.0/24 Frankfurt
PTRns2.observatoiredesmarques.fr
A169.150.255.43🇩🇪 CDN77169.150.255.0/24 Frankfurt
PTRns2.observatoiredesmarques.fr
A188.122.87.39i3Dnet188.122.64.0/19
PTRns2.observatoiredesmarques.fr
NSns3.nameshield.net
A2001:19f0:5:353:5400:ff:fe37:618f🇺🇸 AS-VULTR2001:19f0::/38 Vultr Assigned Prefix
PTRns3.nameshield.net
A2a02:6ea0:c140::1🇺🇸 CDN772a02:6ea0:c100::/40 _IPv6_ATL-1
PTRunn-atl.cdn77.com
A2a02:6ea0:e216::1🇺🇸 CDN772a02:6ea0:e200::/40 -ASH
PTRns3.nameshield.net
A37.19.207.80🇺🇸 CDN7737.19.206.0/23 -ASH
PTRns3.nameshield.net
A45.63.17.113🇺🇸 AS-VULTR45.63.16.0/21 Vultr Assigned Prefix
PTRns3.nameshield.net
A195.181.171.194🇺🇸 CDN77195.181.171.0/24 -ATL
PTRns3.nameshield.net
SOAobs.ns1.frtechnical@nameshield.net 2026-05-21 #6

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-07-18 17:30:01 +0000 (EPOCH 1784395801)
SOAns1.dns.nldns@sidn.nl 2026-07-18 #35

Same first word

dcsymposium.com
dcsymposium.nl
dcsymposium.org

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSns2.observatoiredesmarques.frns3.nameshield.netobs.ns1.frnszero1.axc.nlnszero2.axc.nlMXfallback.axc.nlmail.dcsymposium.nlA185.65.58.5581.92.91.56159.253.0.110185.182.56.12
●NSns2.observatoiredesmarques.fr2026-06-23 → 2026-07-18 · 3 obs
○ 2017-08-28 11:04:44
● 2026-06-23 12:27:22
● 2026-07-18 18:15:18
●NSns3.nameshield.net2026-06-23 → 2026-07-18 · 3 obs
○ 2017-08-28 11:04:44
● 2026-06-23 12:27:22
● 2026-07-18 18:15:18
○NSnszero1.axc.nl2015-08-18 → 2017-08-28 · 4 obs
● 2015-08-18 06:38:26
● 2017-08-28 11:04:44
○ 2026-06-23 12:27:22
○ 2026-07-18 18:15:18
○NSnszero2.axc.nl2015-08-18 → 2017-08-28 · 4 obs
● 2015-08-18 06:38:26
● 2017-08-28 11:04:44
○ 2026-06-23 12:27:22
○ 2026-07-18 18:15:18
●NSobs.ns1.fr2026-06-23 → 2026-07-18 · 3 obs
○ 2017-08-28 11:04:44
● 2026-06-23 12:27:22
● 2026-07-18 18:15:18
○MXfallback.axc.nl2015-08-18 → 2017-08-28 · 4 obs
● 2015-08-18 06:38:26
● 2017-08-28 11:04:44
○ 2026-06-23 12:27:22
○ 2026-07-18 18:15:18
○MXmail.dcsymposium.nl2015-08-18 → 2017-08-28 · 4 obs
● 2015-08-18 06:38:26
● 2017-08-28 11:04:44
○ 2026-06-23 12:27:22
○ 2026-07-18 18:15:18
○A159.253.0.1102015-08-18 → 2016-11-28 · 4 obs
● 2015-08-18 06:38:26
● 2016-11-28 23:06:18
○ 2017-08-28 11:04:44
○ 2026-07-18 18:15:18
○A185.182.56.122017-08-28 → 2017-08-28 · 4 obs
○ 2016-11-28 23:06:18
● 2017-08-28 11:04:44
○ 2026-06-23 12:27:22
○ 2026-07-18 18:15:18
●A185.65.58.552026-06-23 → 2026-07-18 · 3 obs
○ 2017-08-28 11:04:44
● 2026-06-23 12:27:22
● 2026-07-18 18:15:18
●A81.92.91.562026-06-23 → 2026-07-18 · 3 obs
○ 2017-08-28 11:04:44
● 2026-06-23 12:27:22
● 2026-07-18 18:15:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns4.dns.nl, ns3.dns.nl-
dcsymposium.nlns2.observatoiredesmarques.fr, ns3.nameshield.net, obs.ns1.fr-

✅ Authoritative Response

Server:89.222.108.240

NS records: ns2.observatoiredesmarques.fr, ns3.nameshield.net, obs.ns1.fr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dcsymposium.nl (unsigned zone)

⏱️ Timing

Total: 2353ms | Queries: -

📄 Records

TypeCountSample Data
A2185.65.58.55, 81.92.91.56
NS3ns3.nameshield.net, ns2.observatoiredesmarques.fr...
SOA1obs.ns1.fr technical.nameshield.net

Analysis

IP Addresses

dcsymposium.nl directs to two IP numbers, 81.92.91.56 and 185.65.58.55

Among the host names that share IP numbers with dcsymposium.nl are securyspot.com, totsa.company, bispeakerconnection.com and two others.

Name Servers

Three name servers are authoritative for dcsymposium.nl: obs.ns1.fr, ns2.observatoiredesmarques.fr and ns3.nameshield.net.

dcsymposium.nl partially shares its NS delegation with several other domains, including wwwbourse.com, netposte.com, autover.ch and two others.

Host names resolving to 6 IP numbers:

ns2.observatoiredesmarques.fr carries IP addresses 89.222.108.240, 169.150.255.43 and 188.122.87.39, with 3 other addresses beyond those.

ns3.nameshield.net carries IP addresses 37.19.207.80, 45.63.17.113 and 195.181.171.194, with 3 other addresses beyond those.

Hosts pointing to four IP addresses:

obs.ns1.fr maps to the following IP addresses: 81.92.91.46, 185.65.58.46, 2a01:c8:200:111::46 and 2a01:c8:300:111::46.