mathdown.com - dns.ninja

mathdown.com

DNSSEC⚠️ Not signed
A2600:1f18:16e:df01::258🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:16e:df01::259🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A18.208.88.157🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
A98.84.224.111🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix
NSns1.dnsimple.com ⭐
A2620:111:8004::53🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation
A199.247.152.53🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation
NSns2.dnsimple.com
A2620:111:8005::53🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route
A199.247.153.53🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route
NSns3.dnsimple.com
A2620:111:8006::53🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation
A199.247.154.53🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation
NSns4.dnsimple.com
A2620:111:8007::53🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route
A199.247.155.53🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route
MXspool.mail.gandi.net ⭐
A2001:4b98:e00::1🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRspool.mail.gandi.net
A217.70.178.1🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net
PTRspool.mail.gandi.net
MXfb.mail.gandi.net(50)
A2001:4b98:dc4:8::215🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRspool6.mail.gandi.net
A2001:4b98:dc4:8::216🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRspool7.mail.gandi.net
A2001:4b98:dc4:8::217🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRspool8.mail.gandi.net
A217.70.178.215🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net
PTRspool6.mail.gandi.net
A217.70.178.216🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net
PTRspool7.mail.gandi.net
A217.70.178.217🇫🇷 GANDI-AS217.70.176.0/20 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net
PTRspool8.mail.gandi.net
SOAns1.dnsimple.comadmin@dnsimple.com serial=1439344531

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1784951672

Same first word

mathdown.net
mathdown.com

DNS History

24 records (10 active, 14 former)

20162017201820192020202120222023202420252026NSns1.dnsimple.comns2.dnsimple.comns3.dnsimple.comns4.dnsimple.comMXfb.mail.gandi.netspool.mail.gandi.netA18.208.88.1572600:1f18:16e:df01::2582600:1f18:16e:df01::25998.84.224.1112a05:d014:58f:6200::2582a05:d014:58f:6200::2593.227.142.23834.192.78.18634.230.145.19234.235.226.2835.157.26.13550.17.165.17152.20.119.2452.203.65.1152.5.84.25552.7.66.2154.84.62.1063.176.8.218
●NSns1.dnsimple.com2015-08-12 → 2026-07-25 · 2 obs
● 2015-08-12 07:32:44
● 2026-07-25 04:13:20
●NSns2.dnsimple.com2015-08-12 → 2026-07-25 · 2 obs
● 2015-08-12 07:32:44
● 2026-07-25 04:13:20
●NSns3.dnsimple.com2015-08-12 → 2026-07-25 · 2 obs
● 2015-08-12 07:32:44
● 2026-07-25 04:13:20
●NSns4.dnsimple.com2015-08-12 → 2026-07-25 · 2 obs
● 2015-08-12 07:32:44
● 2026-07-25 04:13:20
●MXfb.mail.gandi.net2020-03-04 → 2026-07-25 · 2 obs
● 2020-03-04 12:09:22
● 2026-07-25 04:13:20
●MXspool.mail.gandi.net2020-03-04 → 2026-07-25 · 2 obs
● 2020-03-04 12:09:22
● 2026-07-25 04:13:20
●A18.208.88.1572026-06-12 → 2026-07-25 · 9 obs
○ 2026-05-06 10:37:36
● 2026-06-12 15:59:28
○ 2026-06-18 06:03:18
○ 2026-06-18 07:38:40
● 2026-06-18 10:20:38
● 2026-06-18 11:41:54
○ 2026-06-27 08:54:32
● 2026-06-27 17:26:54
● 2026-07-25 04:13:20
●A2600:1f18:16e:df01::2582026-06-12 → 2026-07-25 · 7 obs
○ 2026-05-06 10:37:36
● 2026-06-12 15:59:28
● 2026-06-18 10:20:38
○ 2026-06-18 11:41:54
● 2026-06-27 08:54:32
○ 2026-06-28 04:34:46
● 2026-07-25 04:13:20
●A2600:1f18:16e:df01::2592026-06-12 → 2026-07-25 · 7 obs
○ 2026-05-06 10:37:36
● 2026-06-12 15:59:28
● 2026-06-18 10:20:38
○ 2026-06-18 11:41:54
● 2026-06-27 08:54:32
○ 2026-06-28 04:34:46
● 2026-07-25 04:13:20
○A2a05:d014:58f:6200::2582026-05-06 → 2026-06-28 · 8 obs
○ 2020-03-04 12:09:22
● 2026-05-06 10:37:36
○ 2026-06-12 15:59:28
○ 2026-06-18 10:20:38
● 2026-06-18 11:41:54
○ 2026-06-27 08:54:32
● 2026-06-28 04:34:46
○ 2026-07-25 04:13:20
○A2a05:d014:58f:6200::2592026-05-06 → 2026-06-28 · 8 obs
○ 2020-03-04 12:09:22
● 2026-05-06 10:37:36
○ 2026-06-12 15:59:28
○ 2026-06-18 10:20:38
● 2026-06-18 11:41:54
○ 2026-06-27 08:54:32
● 2026-06-28 04:34:46
○ 2026-07-25 04:13:20
○A3.227.142.2382020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A34.192.78.1862020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A34.230.145.1922020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A34.235.226.282020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A35.157.26.1352026-05-06 → 2026-06-27 · 10 obs
○ 2020-03-04 12:09:22
● 2026-05-06 10:37:36
○ 2026-06-12 15:59:28
● 2026-06-18 06:03:18
● 2026-06-18 07:38:40
○ 2026-06-18 10:20:38
○ 2026-06-18 11:41:54
● 2026-06-27 08:54:32
○ 2026-06-27 17:26:54
○ 2026-07-25 04:13:20
○A50.17.165.1712020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A52.20.119.242020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A52.203.65.112020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A52.5.84.2552020-03-04 → 2020-03-04 · 4 obs
○ 2017-03-18 13:22:20
● 2020-03-04 12:09:22
○ 2026-05-06 10:37:36
○ 2026-07-25 04:13:20
○A52.7.66.212015-08-12 → 2015-08-12 · 3 obs
● 2015-08-12 07:32:44
○ 2015-12-01 08:38:04
○ 2026-07-25 04:13:20
○A54.84.62.102015-12-01 → 2017-03-18 · 5 obs
○ 2015-08-12 07:32:44
● 2015-12-01 08:38:04
● 2017-03-18 13:22:20
○ 2020-03-04 12:09:22
○ 2026-07-25 04:13:20
○A63.176.8.2182026-05-06 → 2026-06-27 · 10 obs
○ 2020-03-04 12:09:22
● 2026-05-06 10:37:36
○ 2026-06-12 15:59:28
● 2026-06-18 06:03:18
● 2026-06-18 07:38:40
○ 2026-06-18 10:20:38
○ 2026-06-18 11:41:54
● 2026-06-27 08:54:32
○ 2026-06-27 17:26:54
○ 2026-07-25 04:13:20
●A98.84.224.1112026-06-12 → 2026-07-25 · 9 obs
○ 2026-05-06 10:37:36
● 2026-06-12 15:59:28
○ 2026-06-18 06:03:18
○ 2026-06-18 07:38:40
● 2026-06-18 10:20:38
● 2026-06-18 11:41:54
○ 2026-06-27 08:54:32
● 2026-06-27 17:26:54
● 2026-07-25 04:13:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
mathdown.comns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com8 records

✅ Authoritative Response

Server:199.247.155.53

NS records: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathdown.com (unsigned zone)

⏱️ Timing

Total: 254ms | Queries: -

📄 Records

TypeCountSample Data
A218.208.88.157, 98.84.224.111
AAAA22600:1f18:16e:df01::258, 2600:1f18:16e:df01::259
NS4ns1.dnsimple.com, ns2.dnsimple.com...
MX2spool.mail.gandi.net (pri: 10), fb.mail.gandi.net (pri: 50)
SOA1ns1.dnsimple.com admin.dnsimple.com

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.dnsimple.com, ns1.dnsimple.com, ns2.dnsimple.com...)

Analysis

IP Addresses

mathdown.com resolves to four IP addresses: 18.208.88.157, 98.84.224.111, 2600:1f18:16e:df01::258 and 2600:1f18:16e:df01::259.

Two other host names, along with djy.io, matter.health and sodapoptops.com, also share IP numbers with mathdown.com.

Name Servers

The NS records for mathdown.com point to four name servers: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and ns4.dnsimple.com.

mathdown.com shares at least some of its name servers with other domains, including geekspiff.com, senzaregole.com, pfefferle.co and two others.

These name servers are frequently paired with the name servers ns4.dnsimple-edge.org and ns2.dnsimple-edge.net.

The host names ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and ns4.dnsimple.com each resolve to two IP addresses: ns1.dnsimple.com resolves to 199.247.152.53 and 2620:111:8004::53; ns2.dnsimple.com resolves to 199.247.153.53 and 2620:111:8005::53; ns3.dnsimple.com resolves to 199.247.154.53 and 2620:111:8006::53; ns4.dnsimple.com resolves to 199.247.155.53 and 2620:111:8007::53.

Mail Servers

mathdown.com is served by two mail servers, fb.mail.gandi.net and spool.mail.gandi.net.

Among the domains sharing a mail server setup with mathdown.com are constance.tv, ar(0x73686974)ekt.com, gazcom.biz and two others.

DNS names with 6 IP addresses:

fb.mail.gandi.net has IP addresses 217.70.178.215, 217.70.178.216 and 217.70.178.217, plus 3 other.

Host names that have two IP addresses:

spool.mail.gandi.net has two IP addresses: 217.70.178.1 and 2001:4b98:e00::1.