`po02.com`

DNSSEC	⚠️ Not signed
A	220.228.6.217^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
NS	`dns1.f1.com.tw` ⭐ ⚠️ Not in parent delegation
		A	218.32.213.234^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp234.f1.com.tw`
NS	`dns2.f1.com.tw` ⚠️ Not in parent delegation
		A	220.228.6.17^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
NS	`sf243.f1.com.tw` ⚠️ Not in zone NS records
		A	220.228.6.17^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
NS	`sp234.f1.com.tw` ⚠️ Not in zone NS records
		A	218.32.213.234^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp234.f1.com.tw`
MX	`po02.com` ⭐
		A	220.228.6.217^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
MX	`www.po02.com`⁽¹⁴⁾
		A	220.228.6.217^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
SOA	`dns1.f1.com.tw`ohgo@ms23.hinet.net 2000-11-01 #8

`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=1774400362

MX for

po02.com

Subdomains

www.po02.com

Same first word

po02.com

Similar names

02po.com

po20.com

op02.biz

20po.info

DNS History

11 records (7 active, 4 former)

●NSdns1.f1.com.tw2019-12-25 → 2026-03-25 · 3 obs

○ 2015-12-27 07:16:04
● 2019-12-25 09:27:56
● 2026-03-25 01:16:12

●NSdns2.f1.com.tw2019-12-25 → 2026-03-25 · 3 obs

○ 2015-12-27 07:16:04
● 2019-12-25 09:27:56
● 2026-03-25 01:16:12

○NSns11.bigwww.com2015-08-04 → 2015-12-27 · 4 obs

● 2015-08-04 12:11:54
● 2015-12-27 07:16:04
○ 2019-12-25 09:27:56
○ 2026-03-25 01:16:12

●NSsf243.f1.com.tw2026-03-25 → 2026-03-25 · 2 obs

○ 2019-12-25 09:27:56
● 2026-03-25 01:16:12

●NSsp234.f1.com.tw2026-03-25 → 2026-03-25 · 2 obs

○ 2019-12-25 09:27:56
● 2026-03-25 01:16:12

●MXpo02.com2019-12-25 → 2026-03-25 · 2 obs

● 2019-12-25 09:27:56
● 2026-03-25 01:16:12

●MXwww.po02.com2019-12-25 → 2026-03-25 · 2 obs

● 2019-12-25 09:27:56
● 2026-03-25 01:16:12

○A103.60.220.432015-12-27 → 2015-12-27 · 4 obs

○ 2015-09-13 23:13:46
● 2015-12-27 07:16:04
○ 2016-04-10 02:52:14
○ 2026-03-25 01:16:12

○A205.164.14.742016-04-10 → 2016-04-10 · 4 obs

○ 2015-12-27 07:16:04
● 2016-04-10 02:52:14
○ 2019-12-25 09:27:56
○ 2026-03-25 01:16:12

●A220.228.6.2172019-12-25 → 2026-03-25 · 3 obs

○ 2016-04-10 02:52:14
● 2019-12-25 09:27:56
● 2026-03-25 01:16:12

○A59.188.13.1372015-08-04 → 2015-09-13 · 4 obs

● 2015-08-04 12:11:54
● 2015-09-13 23:13:46
○ 2015-12-27 07:16:04
○ 2026-03-25 01:16:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...	-
po02.com	sf243.f1.com.tw, sp234.f1.com.tw	-

✅ Authoritative Response

Server:220.228.6.17

NS records: sf243.f1.com.tw, sp234.f1.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for po02.com (unsigned zone)

⏱️ Timing

Total: 1110ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.228.6.217`
NS	2	`dns2.f1.com.tw, dns1.f1.com.tw`
MX	2	`www.po02.com (pri: 14), po02.com (pri: 10)`
SOA	1	`dns1.f1.com.tw ohgo.ms23.hinet.net`

Analysis

Hierarchy

The parent of www.po02.com is po02.com.

Mail Server Role

po02.com serves as the mail server for po02.com.

www.po02.com is commonly used as a mail server in conjunction with po02.com.

IP Addresses

po02.com points to a single IP number: 220.228.6.217.

Other host names, for instance www.yss876.com, yss876.com, uu55k.com, www.po02.com and www.7755m.com share IP numbers with po02.com.

Name Servers

po02.com is delegated to four name servers: dns1.f1.com.tw, dns2.f1.com.tw, sf243.f1.com.tw and sp234.f1.com.tw.

po02.com shares name servers with other domains at least partially, for instance olginfo.com, uthome-327.com, hcuter.com, k413.com and caw5d.com.

these name servers are commonly paired with ns1.oknet.tw, ns2.oknet.tw, ns1.icstock.com.tw, ns2.icstock.com.tw, sf243.f1.coam.tw, ns1.h839.com, ns2.h839.com, ns1.new47.com and ns2.new47.com.

Host names with a single IP number:

The host name dns1.f1.com.tw points to 218.32.213.234.

The host name dns2.f1.com.tw points to 220.228.6.17.

The host name sf243.f1.com.tw points to 220.228.6.17.

The host name sp234.f1.com.tw points to 218.32.213.234.

Host names pointing to 218.32.213.234: dns1.f1.com.tw and sp234.f1.com.tw.

Host names pointing to 220.228.6.17: dns2.f1.com.tw and sf243.f1.com.tw.

Mail Servers

Two mail servers handle po02.com: po02.com and www.po02.com.