`mathinfinity.com`

DNSSEC	⚠️ Not signed
NS	`mpmserver.mpmmath.com.tw` ⭐
		A	59.125.126.105^{🇹🇼 HiNet59.125.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`59-125-126-105.hinet-ip.hinet.net`
NS	`dns3.doubleplusenglish.com` ⚠️ Not in zone NS records
NS	`dns4.doubleplusenglish.com` ⚠️ Not in zone NS records
NS	`nt.mpmmath.com.tw` ⚠️ Not in parent delegation
MX	`mail.mathinfinity.com` ⭐
		A	59.125.163.212^{🇹🇼 HiNet59.125.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`59-125-163-212.hinet-ip.hinet.net`
SOA	`mpmserver.mpmmath.com.tw`root@mpmmath.com.tw 2009-09-24 #7

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1777233861

Subdomains

mail.mathinfinity.com

Same first word

mathinfinity.com

mathinfinity.net.ru

DNS History

5 records (5 active, 0 former)

●NSdns3.doubleplusenglish.com2026-03-06 → 2026-04-26 · 3 obs

○ 2015-05-13 11:45:54
● 2026-03-06 14:14:46
● 2026-04-26 20:12:12

●NSdns4.doubleplusenglish.com2026-03-06 → 2026-04-26 · 3 obs

○ 2015-05-13 11:45:54
● 2026-03-06 14:14:46
● 2026-04-26 20:12:12

●NSmpmserver.mpmmath.com.tw2015-05-13 → 2026-04-26 · 2 obs

● 2015-05-13 11:45:54
● 2026-04-26 20:12:12

●NSnt.mpmmath.com.tw2015-05-13 → 2026-04-26 · 2 obs

● 2015-05-13 11:45:54
● 2026-04-26 20:12:12

●MXmail.mathinfinity.com2015-05-13 → 2026-04-26 · 2 obs

● 2015-05-13 11:45:54
● 2026-04-26 20:12:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net...	-
mathinfinity.com	dns3.doubleplusenglish.com, dns4.doubleplusenglish.com	2 records

✅ Authoritative Response

Server:59.125.126.100

NS records: dns3.doubleplusenglish.com, dns4.doubleplusenglish.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathinfinity.com (unsigned zone)

⏱️ Timing

Total: 553ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	1	`nt.mpmmath.com.tw`
MX	1	`mail.mathinfinity.com (pri: 10)`
SOA	1	`mpmserver.mpmmath.com.tw root.mpmmath.co`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns3.doubleplusenglish.com, dns4.doubleplusenglish.com)

Analysis

Hierarchy

mail.mathinfinity.com is a child of mathinfinity.com.

Name Servers

mathinfinity.com delegates to four name servers: dns3.doubleplusenglish.com, dns4.doubleplusenglish.com, mpmserver.mpmmath.com.tw and nt.mpmmath.com.tw.

mathinfinity.com at least partially shares name servers with other domains, including mi-pmi.com, mi-kmi.com, mpmmath.com, 21mi.com and doubleplusenglish.com.

These name servers are commonly used together with the name servers dns1.mpmmath.com, dns2.mpmmath.com, dns2.21mi.com and dns.21mi.com.

Host names with a single IP number: The host name mpmserver.mpmmath.com.tw points to 59.125.126.105.

Mail Servers

A single mail server handles mathinfinity.com, mail.mathinfinity.com.

Host name mail.mathinfinity.com resolves to a single IP: 59.125.163.212.

mathinfinity.com - robtex.com