topmath.org - dns.ninja

`topmath.org`

DNSSEC	⚠️ Not signed
A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
		PTR	`bc6.dnsonic.com`
NS	`ns9.dnsonic.com` ⭐ ⚠️ Not in parent delegation
		A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`bc6.dnsonic.com`
NS	`ns10.dnsonic.com` ⚠️ Not in parent delegation
		A	2001:b030:816a:ff74::1^{🇹🇼 HiNet2001:b030:8000::/36}
			PTR	`2001-b030-816a-ff74-0000-0000-0000-0001.hinet-ip6.hinet.net`
		A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`bc6.dnsonic.com`
NS	`ns5.dnsonic.com` ⚠️ Not in zone NS records
		A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`bc6.dnsonic.com`
NS	`ns6.dnsonic.com` ⚠️ Not in zone NS records
		A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`bc6.dnsonic.com`
MX	`topmath.org` ⭐
		A	211.21.6.130^{🇹🇼 HiNet211.21.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`bc6.dnsonic.com`
TXT	`v=spf1 ip4:211.21.6.130 ip4:211.21.6.131 +a +mx +ip4:211.23.95.247 +ip4:211.2...`
SOA	`ns9.dnsonic.com`notice@potia.net 2026-06-28 #1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785608065

MX for

topmath.org

Subdomains

www.topmath.org

Same first word

topmath.com

topmath.info

topmath.org

topmath.ir

topmath.ca

topmath.de

Similar names

potmath.com

mathopt.de

mathtop.com

matphot.com

mattohp.jp

optmath.com

mathopt.org

tomphat.com.au

mathtop.com.cn

thompat.de

mathopt.com

photmat.eu

mattohp.com

mathpot.com

pamtoth.com

DNS History

20 records (6 active, 14 former)

○NSdns1.name-services.com2015-05-31 → 2017-03-31 · 4 obs

● 2015-05-31 22:09:38
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○NSdns2.name-services.com2015-05-31 → 2017-03-31 · 4 obs

● 2015-05-31 22:09:38
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○NSdns3.name-services.com2015-05-31 → 2017-03-31 · 4 obs

● 2015-05-31 22:09:38
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○NSdns4.name-services.com2015-05-31 → 2017-03-31 · 4 obs

● 2015-05-31 22:09:38
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○NSdns5.name-services.com2015-05-31 → 2017-03-31 · 4 obs

● 2015-05-31 22:09:38
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

●NSns10.dnsonic.com2026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

●NSns5.dnsonic.com2026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

●NSns6.dnsonic.com2026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

●NSns9.dnsonic.com2026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

○MXalt1.aspmx.l.google.com2015-10-21 → 2017-03-31 · 4 obs

● 2015-10-21 03:18:22
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○MXalt2.aspmx.l.google.com2015-10-21 → 2017-03-31 · 4 obs

● 2015-10-21 03:18:22
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○MXalt3.aspmx.l.google.com2015-10-21 → 2017-03-31 · 4 obs

● 2015-10-21 03:18:22
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○MXalt4.aspmx.l.google.com2015-10-21 → 2017-03-31 · 4 obs

● 2015-10-21 03:18:22
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○MXaspmx.l.google.com2015-10-21 → 2017-03-31 · 4 obs

● 2015-10-21 03:18:22
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

●MXtopmath.org2026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

○A2001:b030:816a:ff74::12026-03-14 → 2026-04-27 · 5 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-04-27 18:51:50
○ 2026-05-13 10:04:10
○ 2026-08-01 18:56:14

○A210.242.86.1952017-03-31 → 2017-03-31 · 4 obs

○ 2016-04-24 06:50:02
● 2017-03-31 13:55:24
○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

●A211.21.6.1302026-03-14 → 2026-08-01 · 3 obs

○ 2017-03-31 13:55:24
● 2026-03-14 03:28:04
● 2026-08-01 18:56:14

○A211.21.6.1332026-03-14 → 2026-08-01 · 2 obs

○ 2026-03-14 03:28:04
○ 2026-08-01 18:56:14

○A211.72.206.32015-05-31 → 2016-04-24 · 4 obs

● 2015-05-31 22:09:38
● 2016-04-24 06:50:02
○ 2017-03-31 13:55:24
○ 2026-08-01 18:56:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
topmath.org	ns5.dnsonic.com, ns6.dnsonic.com	-

✅ Authoritative Response

Server:211.21.6.130

NS records: ns5.dnsonic.com, ns6.dnsonic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for topmath.org (unsigned zone)

⏱️ Timing

Total: 684ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`211.21.6.130`
NS	2	`ns9.dnsonic.com, ns10.dnsonic.com`
MX	1	`topmath.org (pri: 0)`
TXT	1	`v=spf1 ip4:211.21.6.130 ip4:211.21.6.131`
SOA	1	`ns9.dnsonic.com notice.potia.net`

Analysis

Hierarchy

topmath.org is the parent zone for www.topmath.org.

Mail Server Role

topmath.org acts as its own mail server.

IP Addresses

topmath.org points to a single IP number: 211.21.6.130.

Additional host names — makerall.com, fonton.com, yiton.com.tw and two others — share IP numbers with topmath.org.

Name Servers

topmath.org has four authoritative name servers: ns10.dnsonic.com, ns5.dnsonic.com, ns6.dnsonic.com and ns9.dnsonic.com.

topmath.org partially shares its NS delegation with several other domains, including derfang.com.tw, feng-group.com.tw, antenfishing.com.tw and two others.

The name servers ns7.dnsonic.com, ns8.dnsonic.com, ns3.dnsonic.com and ns4.dnsonic.com are often found in use alongside these name servers.

Host names with two IP numbers:

ns10.dnsonic.com has two IP addresses: 211.21.6.130 and 2001:b030:816a:ff74::1.

Host names pointing to a single IP address:

ns5.dnsonic.com directs to 211.21.6.130.

ns6.dnsonic.com directs to 211.21.6.130.

ns9.dnsonic.com directs to 211.21.6.130.

The host names ns10.dnsonic.com, ns5.dnsonic.com, ns6.dnsonic.com and ns9.dnsonic.com all point to 211.21.6.130.

Mail Servers

topmath.org has a single mail server: topmath.org itself.

topmath.org has exactly one IP number: 211.21.6.130.