understood.systems - dns.ninja

understood.systems

DNSSEC⚠️ Not signed
A217.70.184.38🇫🇷 GANDI-AS217.70.184.0/24 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net
PTRwebredir.vip.gandi.net
NSa.dns.gandi.net
A2604:3400:abca::1🇺🇸 GANDI-LIVEDNS2604:3400:abca::/48 A-DNS
PTRa.dns.gandi.net
A173.246.98.1🇺🇸 GANDI-LIVEDNS173.246.98.0/24 A-DNS
PTRa.dns.gandi.net
NSb.dns.gandi.net
A2001:4b98:abcb::1🇫🇷 GANDI-LIVEDNS2001:4b98:abcb::/48 B-DNS
PTRb.dns.gandi.net
A213.167.229.1🇫🇷 GANDI-LIVEDNS213.167.229.0/24 B-DNS
PTRb.dns.gandi.net
NSc.dns.gandi.net
A2604:3400:abcc::1🇺🇸 GANDI-LIVEDNS2604:3400:abcc::/48 c.dns.gandi.net
PTRc.dns.gandi.net
A217.70.179.1🇫🇷 GANDI-LIVEDNS217.70.179.0/24 C-DNS
PTRc.dns.gandi.net
MXin1-smtp.messagingengine.com
A103.168.172.216🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ?all
SOAa.dns.gandi.nethostmaster@gandi.net serial=1720970667

systems

DNSSEC🔒 Signed (DS record present)
NSv0n0.nic.systems
NSv0n1.nic.systems
NSv0n2.nic.systems
NSv0n3.nic.systems
NSv2n0.nic.systems
NSv2n1.nic.systems
SOAv0n0.nic.systemshostmaster@donuts.email serial=1786111586

Same first word

Similar names

DNS History

8 records (6 active, 2 former)

20162017201820192020202120222023202420252026NSa.dns.gandi.netb.dns.gandi.netc.dns.gandi.netMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comfb.mail.gandi.netspool.mail.gandi.netA217.70.184.38
NSa.dns.gandi.net2015-08-18 → 2026-08-07 · 2 obs
● 2015-08-18 07:08:42
● 2026-08-07 14:41:38
NSb.dns.gandi.net2015-08-18 → 2026-08-07 · 2 obs
● 2015-08-18 07:08:42
● 2026-08-07 14:41:38
NSc.dns.gandi.net2015-08-18 → 2026-08-07 · 2 obs
● 2015-08-18 07:08:42
● 2026-08-07 14:41:38
MXfb.mail.gandi.net2015-08-18 → 2016-04-06 · 4 obs
● 2015-08-18 07:08:42
● 2016-04-06 22:13:00
○ 2016-11-26 19:27:56
○ 2026-08-07 14:41:38
MXin1-smtp.messagingengine.com2016-11-26 → 2026-08-07 · 3 obs
○ 2016-04-06 22:13:00
● 2016-11-26 19:27:56
● 2026-08-07 14:41:38
MXin2-smtp.messagingengine.com2016-11-26 → 2026-08-07 · 3 obs
○ 2016-04-06 22:13:00
● 2016-11-26 19:27:56
● 2026-08-07 14:41:38
MXspool.mail.gandi.net2015-08-18 → 2016-04-06 · 4 obs
● 2015-08-18 07:08:42
● 2016-04-06 22:13:00
○ 2016-11-26 19:27:56
○ 2026-08-07 14:41:38
A217.70.184.382015-08-18 → 2026-08-07 · 2 obs
● 2015-08-18 07:08:42
● 2026-08-07 14:41:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
systemsv0n0.nic.systems, v0n2.nic.systems, v2n0.nic.systems, v0n1.nic.systems...12 records
understood.systemsc.dns.gandi.net, b.dns.gandi.net, a.dns.gandi.net-

✅ Authoritative Response

Server:173.246.98.1

NS records: c.dns.gandi.net, b.dns.gandi.net, a.dns.gandi.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for understood.systems (unsigned zone)

⏱️ Timing

Total: 697ms | Queries: -

📄 Records

TypeCountSample Data
A1217.70.184.38
NS3b.dns.gandi.net, c.dns.gandi.net...
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ?
SOA1a.dns.gandi.net hostmaster.gandi.net

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.systems, v0n0.nic.systems, v0n2.nic.systems...)

Analysis

IP Addresses

understood.systems has exactly one IP address — 217.70.184.38.

teleroute.lt, lmit.be, opploansmyoffer.com plus two other host names have IP numbers in common with understood.systems.

Name Servers

DNS for understood.systems is handled by three authoritative name servers: a.dns.gandi.net, b.dns.gandi.net and c.dns.gandi.net.

understood.systems partially shares its NS delegation with several other domains, including hotel-picblanc-alpes.com, sopheno.info, avimus.com and two others.

These name servers often co-occur with the name servers ns6.gandi.net.

Three hostnames — a.dns.gandi.net, b.dns.gandi.net and c.dns.gandi.net — each have two IP addresses: a.dns.gandi.net has 173.246.98.1 and 2604:3400:abca::1, b.dns.gandi.net has 213.167.229.1 and 2001:4b98:abcb::1, and c.dns.gandi.net has 217.70.179.1 and 2604:3400:abcc::1.

Mail Servers

understood.systems uses two mail servers, in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

The mail server setup of understood.systems matches that of other domains such as pskx.net, becausebirds.com, mailproxy2.echora.org and two others.

understood.systems partially shares its mail servers with other domains, nateoneil.com and ns.desk.nl being examples.

Hosts with 8 IP addresses each:

in1-smtp.messagingengine.com has IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, plus 5 other.

Host names with four IP addresses:

in2-smtp.messagingengine.com maps to the following IP addresses: 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.