hotmath.org - dns.ninja

hotmath.org

DNSSEC⚠️ Not signed
A104.168.133.45🇺🇸 HOSTWINDS-1104.168.128.0/17 MNT-HL-29 route 104.168.128.000/17 AS54290
PTRhwsrv-163747.hostwindsdns.com
NSns1.vultr.com ⭐ ⚠️ Not in zone NS records
A2001:19f0:ccc::1🇺🇸 AS-VULTR2001:19f0:ccc::/48 DNS1
A2001:19f0:ccd::1🇺🇸 AS-VULTR2001:19f0:ccd::/48 Vultr Assigned Prefix
PTRns1.vultr.com
A173.199.96.96🇺🇸 AS-VULTR173.199.96.0/24 Vultr Assigned Prefix
NSns2.vultr.com ⚠️ Not in zone NS records
A2001:19f0:ccc::2🇺🇸 AS-VULTR2001:19f0:ccc::/48 DNS1
A2001:19f0:ccd::2🇺🇸 AS-VULTR2001:19f0:ccd::/48 Vultr Assigned Prefix
PTRns2.vultr.com
A173.199.96.97🇺🇸 AS-VULTR173.199.96.0/24 Vultr Assigned Prefix
MXsmtp.hotmath.org ⭐
A104.168.133.45🇺🇸 HOSTWINDS-1104.168.128.0/17 MNT-HL-29 route 104.168.128.000/17 AS54290
PTRhwsrv-163747.hostwindsdns.com
SOAns1.vultr.comdnsadm@choopa.com serial=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=1782568419
WOT: SAFE (61/100)

Previously MX for

www.hotmath.org

Subdomains

www.hotmath.org
smtp.hotmath.org

Same first word

hotmath.us
hotmath.com
hotmath.org
hotmath.net

DNS History

16 records (4 active, 12 former)

2017201820192020202120222023202420252026NSns1.vultr.comns2.vultr.comcash.ns.cloudflare.comns21.cloudns.netpns21.cloudns.netsk.s5.ans1.ns122.ztomy.comsk.s5.ans2.ns122.ztomy.comsofia.ns.cloudflare.comMXsmtp.hotmath.orgA104.168.133.45104.21.20.53142.44.186.53172.67.191.202208.91.197.442606:4700:3037::6815:14352606:4700:3037::ac43:bfca
○NScash.ns.cloudflare.com2026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10
●NSns1.vultr.com2026-04-24 → 2026-06-27 · 3 obs
○ 2026-04-06 17:58:14
● 2026-04-24 18:16:30
● 2026-06-27 14:07:10
●NSns2.vultr.com2026-04-24 → 2026-06-27 · 3 obs
○ 2026-04-06 17:58:14
● 2026-04-24 18:16:30
● 2026-06-27 14:07:10
○NSns21.cloudns.net2018-09-07 → 2018-09-07 · 4 obs
○ 2016-04-04 19:34:30
● 2018-09-07 23:13:22
○ 2026-02-15 12:51:44
○ 2026-06-27 14:07:10
○NSpns21.cloudns.net2018-09-07 → 2018-09-07 · 4 obs
○ 2016-04-04 19:34:30
● 2018-09-07 23:13:22
○ 2026-02-15 12:51:44
○ 2026-06-27 14:07:10
○NSsk.s5.ans1.ns122.ztomy.com2016-04-04 → 2016-04-04 · 3 obs
● 2016-04-04 19:34:30
○ 2018-09-07 23:13:22
○ 2026-06-27 14:07:10
○NSsk.s5.ans2.ns122.ztomy.com2016-04-04 → 2016-04-04 · 3 obs
● 2016-04-04 19:34:30
○ 2018-09-07 23:13:22
○ 2026-06-27 14:07:10
○NSsofia.ns.cloudflare.com2026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10
●MXsmtp.hotmath.org2026-04-24 → 2026-06-27 · 2 obs
● 2026-04-24 18:16:30
● 2026-06-27 14:07:10
●A104.168.133.452026-04-24 → 2026-06-27 · 3 obs
○ 2026-04-06 17:58:14
● 2026-04-24 18:16:30
● 2026-06-27 14:07:10
○A104.21.20.532026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10
○A142.44.186.532018-09-07 → 2018-09-07 · 4 obs
○ 2016-04-04 19:34:30
● 2018-09-07 23:13:22
○ 2026-02-15 12:51:44
○ 2026-06-27 14:07:10
○A172.67.191.2022026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10
○A208.91.197.442016-04-04 → 2016-04-04 · 3 obs
● 2016-04-04 19:34:30
○ 2018-09-07 23:13:22
○ 2026-06-27 14:07:10
○A2606:4700:3037::6815:14352026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10
○A2606:4700:3037::ac43:bfca2026-02-15 → 2026-04-06 · 5 obs
○ 2018-09-07 23:13:22
● 2026-02-15 12:51:44
● 2026-04-06 17:58:14
○ 2026-04-24 18:16:30
○ 2026-06-27 14:07:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
hotmath.orgns1.vultr.com, ns2.vultr.com-

✅ Authoritative Response

Server:173.199.96.97

NS records: ns1.vultr.com, ns2.vultr.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hotmath.org (unsigned zone)

⏱️ Timing

Total: 280ms | Queries: -

📄 Records

TypeCountSample Data
A1104.168.133.45
MX1smtp.hotmath.org (pri: 10)
SOA1ns1.vultr.com dnsadm.choopa.com

Analysis

Hierarchy

www.hotmath.org and smtp.hotmath.org are both subdomains of hotmath.org.

IP Addresses

hotmath.org resolves to one IP address: 104.168.133.45.

samlernet.dk, mail1.jewelrymoonlight.com, rsgoldsite.nl and two other host names share IP numbers with hotmath.org.

Name Servers

DNS delegation for hotmath.org points to two name servers: ns1.vultr.com and ns2.vultr.com.

hotmath.org uses the same name servers as several other domains — among them seidlerlaw.com, unyfa.org, lci-lineberger.com and two more.

hotmath.org shares at least some of its name servers with other domains, including pred-ed.com, artificialturfmaintenance.net, itzrealty.com and two others.

These name servers are frequently paired with the name servers ns1.wpdns.host, ns2.wpdns.host and ns3.wpdns.host.

ns1.vultr.com and ns2.vultr.com each resolve to three IP addresses. ns1.vultr.com resolves to 173.199.96.96, 2001:19f0:ccc::1 and 2001:19f0:ccd::1. ns2.vultr.com resolves to 173.199.96.97, 2001:19f0:ccc::2 and 2001:19f0:ccd::2.

Mail Servers

Mail for hotmath.org is handled by a single mail server, smtp.hotmath.org.

smtp.hotmath.org has exactly one IP number: 104.168.133.45.