`joint-approach.com`

DNSSEC	⚠️ Not signed
A	211.72.215.59^{🇹🇼 HiNet211.72.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
		PTR	`hippo.potia.net`
NS	`a1.potia.com` ⭐
		A	211.72.215.59^{🇹🇼 HiNet211.72.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`hippo.potia.net`
NS	`a2.potia.com`
		A	2001:b030:816a:ff6e::2^{🇹🇼 HiNet2001:b030:8000::/36}
			PTR	`2001-b030-816a-ff6e-0000-0000-0000-0002.hinet-ip6.hinet.net`
		A	2001:b030:8266:ff16::100^{🇹🇼 HiNet2001:b030:8000::/36}
			PTR	`2001-b030-8266-ff16-0000-0000-0000-0100.hinet-ip6.hinet.net`
		A	211.72.215.59^{🇹🇼 HiNet211.72.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`hippo.potia.net`
MX	`joint-approach.com` ⭐
		A	211.72.215.59^{🇹🇼 HiNet211.72.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`hippo.potia.net`
TXT	`v=spf1 +a +mx +ip4:211.72.215.59 ~all`
SOA	`a1.potia.com`kevinsu@hotmail.com.tw 2026-03-31 #4

`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=1774962352

MX for

joint-approach.com

Same first word

joint-approach.com

DNS History

9 records (4 active, 5 former)

●NSa1.potia.com2026-03-18 → 2026-03-31 · 3 obs

○ 2015-10-19 05:53:12
● 2026-03-18 00:48:44
● 2026-03-31 13:27:20

●NSa2.potia.com2026-03-18 → 2026-03-31 · 3 obs

○ 2015-10-19 05:53:12
● 2026-03-18 00:48:44
● 2026-03-31 13:27:20

○NSns10.1and1.co.uk2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 19:24:44
○ 2015-10-19 05:53:12
○ 2026-03-31 13:27:20

○NSns9.1and1.co.uk2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 19:24:44
○ 2015-10-19 05:53:12
○ 2026-03-31 13:27:20

●MXjoint-approach.com2026-03-18 → 2026-03-31 · 3 obs

○ 2015-10-19 05:53:12
● 2026-03-18 00:48:44
● 2026-03-31 13:27:20

○MXmx00.schlund.de2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 19:24:44
○ 2015-10-19 05:53:12
○ 2026-03-31 13:27:20

○MXmx01.schlund.de2008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 19:24:44
○ 2015-10-19 05:53:12
○ 2026-03-31 13:27:20

●A211.72.215.592026-03-18 → 2026-03-31 · 3 obs

○ 2015-10-19 05:53:12
● 2026-03-18 00:48:44
● 2026-03-31 13:27:20

○A82.165.117.632008-03-19 → 2008-03-19 · 3 obs

● 2008-03-19 19:24:44
○ 2015-10-19 05:53:12
○ 2026-03-31 13:27:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
joint-approach.com	a1.potia.com, a2.potia.com	3 records

✅ Authoritative Response

Server:211.72.215.59

NS records: a1.potia.com, a2.potia.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for joint-approach.com (unsigned zone)

⏱️ Timing

Total: 859ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`211.72.215.59`
NS	2	`a1.potia.com, a2.potia.com`
MX	1	`joint-approach.com (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:211.72.215.59 ~all`
SOA	1	`a1.potia.com kevinsu.hotmail.com.tw`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (a1.potia.com, a2.potia.com, a2.potia.com)

Analysis

Mail Server Role

The mail server for joint-approach.com is joint-approach.com.

IP Addresses

joint-approach.com maps to IP address 211.72.215.59.

Other host names, for instance slln.net, fstcorp.com, tpea.org.tw, omdhome.com and sccolor.com.tw share IP numbers with joint-approach.com.

Name Servers

Two name servers a1.potia.com and a2.potia.com are delegated to joint-approach.com.

joint-approach.com uses the same name server configuration as other domains, such as dglongyou.com, wahaha.tw, mbha.org.tw, fluorez.com.tw and everestpharm.com.

joint-approach.com shares name servers with other domains at least partially, for instance shinmao.com.tw and feinstr.com.

Host names with three IPs:

a2.potia.com points to 2001:b030:816a:ff6e::2, 2001:b030:8266:ff16::100 and 211.72.215.59.

Host names with a single IP:

a1.potia.com points to 211.72.215.59.

Names pointing to 211.72.215.59: a2.potia.com and a1.potia.com.

Mail Servers

One mail server serves joint-approach.com.

joint-approach.com points to one IP number: 211.72.215.59.

joint-approach.com - robtex.com