ref53.com - dns.ninja

`ref53.com`

DNSSEC	⚠️ Not signed
A	220.228.6.59^{🇹🇼 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	`ns1.icstock.com.tw` ⚠️ Not in zone NS records
		A	218.32.213.228^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp228.f1.com.tw`
NS	`ns2.icstock.com.tw` ⚠️ Not in zone NS records
		A	218.32.210.72^{🇹🇼 NCIC-TW218.32.210.0/24 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp72.f1.com.tw`
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	`ref53.com` ⭐
		A	220.228.6.59^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
MX	`www.ref53.com`⁽¹⁴⁾
		A	220.228.6.59^{🇹🇼 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=1785311797

MX for

ref53.com

Subdomains

www.ref53.com

Same first word

ref53.com

DNS History

9 records (8 active, 1 former)

●NSdns1.f1.com.tw2019-12-15 → 2026-07-29 · 2 obs

● 2019-12-15 12:14:16
● 2026-07-29 08:18:14

●NSdns2.f1.com.tw2019-12-15 → 2026-07-29 · 2 obs

● 2019-12-15 12:14:16
● 2026-07-29 08:18:14

●NSns1.icstock.com.tw2026-04-01 → 2026-07-29 · 3 obs

○ 2019-12-15 12:14:16
● 2026-04-01 06:22:36
● 2026-07-29 08:18:14

●NSns2.icstock.com.tw2026-04-01 → 2026-07-29 · 3 obs

○ 2019-12-15 12:14:16
● 2026-04-01 06:22:36
● 2026-07-29 08:18:14

●NSsp234.f1.com.tw2026-04-01 → 2026-07-29 · 3 obs

○ 2019-12-15 12:14:16
● 2026-04-01 06:22:36
● 2026-07-29 08:18:14

●MXref53.com2019-12-15 → 2026-07-29 · 2 obs

● 2019-12-15 12:14:16
● 2026-07-29 08:18:14

●MXwww.ref53.com2019-12-15 → 2026-07-29 · 2 obs

● 2019-12-15 12:14:16
● 2026-07-29 08:18:14

●A220.228.6.592026-04-01 → 2026-07-29 · 3 obs

○ 2019-12-15 12:14:16
● 2026-04-01 06:22:36
● 2026-07-29 08:18:14

○A220.228.6.62019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 12:14:16
○ 2026-04-01 06:22:36
○ 2026-07-29 08:18:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net...	-
ref53.com	ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw	-

✅ Authoritative Response

Server:218.32.213.228

NS records: ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ref53.com (unsigned zone)

⏱️ Timing

Total: 1578ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.228.6.59`
NS	2	`dns1.f1.com.tw, dns2.f1.com.tw`
MX	2	`www.ref53.com (pri: 14), ref53.com (pri: 10)`
SOA	1	`dns1.f1.com.tw ohgo.ms23.hinet.net`

Analysis

Hierarchy

www.ref53.com is delegated beneath ref53.com.

Mail Server Role

The MX record for ref53.com points back to ref53.com — it is its own mail server.

www.ref53.com frequently appears as a mail server alongside ref53.com.

IP Addresses

ref53.com directs to one IP number, which is 220.228.6.59.

Among the host names that share IP numbers with ref53.com are www.us35s.com, 17lo.tv, www.love173.com and two others.

Name Servers

The authoritative name servers for ref53.com are dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw and two others.

There is at least partial name server overlap between ref53.com and other domains — channel555.com, j756.info, 080go.com and two more among them.

These name servers are routinely co-deployed with the name servers ns1.icstock.com.tw, ns2.icstock.com.tw, ns1.oknet.tw and two others.

Hosts that resolve to one IP address:

dns1.f1.com.tw points to 218.32.213.234.

dns2.f1.com.tw points to 220.228.6.17.

sp234.f1.com.tw points to 218.32.213.234.

ns1.icstock.com.tw points to 218.32.213.228.

ns2.icstock.com.tw points to 218.32.210.72.

dns1.f1.com.tw and sp234.f1.com.tw are host names that each point to 218.32.213.234 IP addresses.

Mail Servers

ref53.com is handled by two mail servers: ref53.com and www.ref53.com.

ref53.com and www.ref53.com both resolve to the same single IP address: 220.228.6.59.

ref53.com and www.ref53.com are host names that each point to 220.228.6.59 IP addresses.