mathmod.org - dns.ninja

mathmod.org

DNSSEC⚠️ Not signed
A93.180.9.85🇷🇺 MSU93.180.0.0/18 Lomonosov Moscow State University Vorobjovy Gory, Moscow, Russia
PTRstep.srcc.msu.ru
NSns3.rcc.msu.ru ⭐
A93.180.9.9🇷🇺 MSU93.180.0.0/18 Lomonosov Moscow State University Vorobjovy Gory, Moscow, Russia
PTRns3.srcc.msu.ru
NSns4-l2.nic.ru
A91.217.20.20🇷🇺 RU-CENTER91.217.20.0/24
PTRns4-l2.nic.ru
NSns8-l2.nic.ru
A91.217.21.20🇷🇺 RU-CENTER-AS91.217.21.0/24 RU-CENTER
PTRns8-l2.nic.ru
MXmail.rcc.msu.ru ⭐
A93.180.9.4🇷🇺 MSU93.180.0.0/18 Lomonosov Moscow State University Vorobjovy Gory, Moscow, Russia
PTRmail.rcc.msu.ru
TXTv=spf1 redirect=rcc.msu.ru
SOAns3.rcc.msu.ruadmin@rcc.msu.ru 2025-05-30 #0

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=1783243284

Same first word

mathmod.org
mathmod.netlify.app
mathmod.at
mathmod.ru
mathmod.com

Similar names

hmtmoda.com
hmtmoda.com.vn
modmath.com

DNS History

17 records (5 active, 12 former)

200920112013201520172019202120232025NSns3.rcc.msu.runs4-l2.nic.runs8-l2.nic.runs1.linode.comns2.linode.comns3.linode.comns4.linode.comns5.linode.comMXmail.rcc.msu.rumail.mathmod.orgA93.180.9.85139.162.191.240172.104.247.5178.79.133.1352a01:7e00::f03c:91ff:fe89:99622a01:7e01::f03c:91ff:fe16:29ef2a01:7e01::f03c:91ff:fe86:e105
○NSns1.linode.com2015-07-31 → 2019-01-05 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
○NSns2.linode.com2015-07-31 → 2019-01-05 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
○NSns3.linode.com2015-07-31 → 2019-01-05 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
●NSns3.rcc.msu.ru2026-07-05 → 2026-07-05 · 3 obs
○ 2019-01-05 01:29:28
● 2026-07-05 04:00:14
● 2026-07-05 09:57:54
●NSns4-l2.nic.ru2026-07-05 → 2026-07-05 · 3 obs
○ 2019-01-05 01:29:28
● 2026-07-05 04:00:14
● 2026-07-05 09:57:54
○NSns4.linode.com2015-07-31 → 2019-01-05 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
○NSns5.linode.com2015-07-31 → 2019-01-05 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
●NSns8-l2.nic.ru2026-07-05 → 2026-07-05 · 3 obs
○ 2019-01-05 01:29:28
● 2026-07-05 04:00:14
● 2026-07-05 09:57:54
○MXmail.mathmod.org2016-03-04 → 2019-01-05 · 4 obs
● 2016-03-04 08:20:22
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
●MXmail.rcc.msu.ru2026-07-05 → 2026-07-05 · 3 obs
○ 2019-01-05 01:29:28
● 2026-07-05 04:00:14
● 2026-07-05 09:57:54
○A139.162.191.2402017-02-08 → 2017-02-08 · 4 obs
○ 2016-06-09 14:03:12
● 2017-02-08 01:03:30
○ 2019-01-05 01:29:28
○ 2026-07-05 09:57:54
○A172.104.247.52019-01-05 → 2019-01-05 · 4 obs
○ 2017-02-08 01:03:30
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
○A178.79.133.1352015-07-31 → 2016-06-09 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2016-06-09 14:03:12
○ 2017-02-08 01:03:30
○ 2026-07-05 09:57:54
○A2a01:7e00::f03c:91ff:fe89:99622015-07-31 → 2016-06-09 · 7 obs
○ 2008-12-24 17:13:54
● 2015-07-31 21:30:00
○ 2015-11-26 04:08:32
● 2016-03-04 08:20:22
● 2016-06-09 14:03:12
○ 2017-02-08 01:03:30
○ 2026-07-05 09:57:54
○A2a01:7e01::f03c:91ff:fe16:29ef2017-02-08 → 2017-02-08 · 4 obs
○ 2016-06-09 14:03:12
● 2017-02-08 01:03:30
○ 2019-01-05 01:29:28
○ 2026-07-05 09:57:54
○A2a01:7e01::f03c:91ff:fe86:e1052019-01-05 → 2019-01-05 · 4 obs
○ 2017-02-08 01:03:30
● 2019-01-05 01:29:28
○ 2026-07-05 04:00:14
○ 2026-07-05 09:57:54
●A93.180.9.852026-07-05 → 2026-07-05 · 3 obs
○ 2019-01-05 01:29:28
● 2026-07-05 04:00:14
● 2026-07-05 09:57:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
mathmod.orgns3.rcc.msu.ru, ns4-l2.nic.ru, ns8-l2.nic.ru-

✅ Authoritative Response

Server:91.217.21.20

NS records: ns3.rcc.msu.ru, ns4-l2.nic.ru, ns8-l2.nic.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathmod.org (unsigned zone)

⏱️ Timing

Total: 1369ms | Queries: -

📄 Records

TypeCountSample Data
A193.180.9.85
NS3ns3.rcc.msu.ru, ns4-l2.nic.ru...
MX1mail.rcc.msu.ru (pri: 5)
TXT1v=spf1 redirect=rcc.msu.ru
SOA1ns3.rcc.msu.ru admin.rcc.msu.ru

Analysis

IP Addresses

mathmod.org directs to one IP number, which is 93.180.9.85.

There are other host names — step.srcc.msu.ru among them — that share IP numbers with mathmod.org.

Name Servers

DNS for mathmod.org is handled by three authoritative name servers: ns4-l2.nic.ru, ns8-l2.nic.ru and ns3.rcc.msu.ru.

mathmod.org partially shares its NS delegation with several other domains, including bbmf.ru, ainros.ru, unsafe.ru and two others.

The name servers ns3-l2.nic.ru, ns4-cloud.nic.ru, ns8-cloud.nic.ru and ns3.nic.ru are often found in use alongside these name servers.

ns4-l2.nic.ru, ns8-l2.nic.ru and ns3.rcc.msu.ru all have one IP address each — ns4-l2.nic.ru directs to 91.217.20.20, ns8-l2.nic.ru directs to 91.217.21.20 and ns3.rcc.msu.ru directs to 93.180.9.9.

Mail Servers

mathmod.org routes its mail through a single mail server, mail.rcc.msu.ru.

mathmod.org has the same mail server arrangement as a number of other domains, for example algowiki-project.org, srcc.msu.ru, guru.ru and two more.

mail.rcc.msu.ru has exactly one IP number: 93.180.9.4.