io520.com - dns.ninja

`io520.com`

DNSSEC	⚠️ Not signed
A	60.199.193.248^{🇹🇼 TFN-NET60.199.193.0/24 Taiwan Fixed Network}
		PTR	`60-199-193-248.static.tfn.net.tw`
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	`io520.com` ⭐
		A	60.199.193.248^{🇹🇼 TFN-NET60.199.193.0/24 Taiwan Fixed Network}
			PTR	`60-199-193-248.static.tfn.net.tw`
MX	`www.io520.com`⁽¹⁴⁾
		A	60.199.193.248^{🇹🇼 TFN-NET60.199.193.0/24 Taiwan Fixed Network}
			PTR	`60-199-193-248.static.tfn.net.tw`
SOA	`dns1.f1.com.tw`ohgo@ms23.hinet.net 2000-11-01 #9

`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=1785444297

MX for

io520.com

Subdomains

www.io520.com

Same first word

io520.com

DNS History

10 records (8 active, 2 former)

●NSdns1.f1.com.tw2015-06-08 → 2026-07-30 · 2 obs

● 2015-06-08 22:10:58
● 2026-07-30 21:03:26

●NSdns2.f1.com.tw2015-06-08 → 2026-07-30 · 2 obs

● 2015-06-08 22:10:58
● 2026-07-30 21:03:26

●NSns1.icstock.com.tw2026-02-23 → 2026-07-30 · 3 obs

○ 2015-06-08 22:10:58
● 2026-02-23 20:33:32
● 2026-07-30 21:03:26

●NSns2.icstock.com.tw2026-02-23 → 2026-07-30 · 3 obs

○ 2015-06-08 22:10:58
● 2026-02-23 20:33:32
● 2026-07-30 21:03:26

●NSsp234.f1.com.tw2026-02-23 → 2026-07-30 · 3 obs

○ 2015-06-08 22:10:58
● 2026-02-23 20:33:32
● 2026-07-30 21:03:26

●MXio520.com2015-06-08 → 2026-07-30 · 2 obs

● 2015-06-08 22:10:58
● 2026-07-30 21:03:26

●MXwww.io520.com2015-06-08 → 2026-07-30 · 2 obs

● 2015-06-08 22:10:58
● 2026-07-30 21:03:26

○A220.229.238.262015-06-08 → 2016-08-09 · 4 obs

● 2015-06-08 22:10:58
● 2016-08-09 02:15:02
○ 2017-03-23 22:09:10
○ 2026-07-30 21:03:26

○A60.199.193.2032017-03-23 → 2017-03-23 · 4 obs

○ 2016-08-09 02:15:02
● 2017-03-23 22:09:10
○ 2026-02-23 20:33:32
○ 2026-07-30 21:03:26

●A60.199.193.2482026-02-23 → 2026-07-30 · 3 obs

○ 2017-03-23 22:09:10
● 2026-02-23 20:33:32
● 2026-07-30 21:03:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
io520.com	ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw	-

✅ Authoritative Response

Server:218.32.213.234

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for io520.com (unsigned zone)

⏱️ Timing

Total: 1389ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`60.199.193.248`
NS	2	`dns1.f1.com.tw, dns2.f1.com.tw`
MX	2	`io520.com (pri: 10), www.io520.com (pri: 14)`
SOA	1	`dns1.f1.com.tw ohgo.ms23.hinet.net`

Analysis

Hierarchy

www.io520.com is a subdomain of io520.com.

Mail Server Role

io520.com handles its own mail, functioning as its own mail server.

www.io520.com routinely functions as a mail server together with io520.com.

IP Addresses

io520.com resolves to just one IP address, 60.199.193.248.

Two other host names, along with www.jubeeb.com, 88dgo.com and ry37u.com, also share IP numbers with io520.com.

Name Servers

io520.com delegates to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw and two others.

The name servers of io520.com overlap at least partially with those of other domains — among them bb-145.com, av235.com, hwe0.com and two more.

These name servers commonly appear in delegations together with ns1.icstock.com.tw, ns2.icstock.com.tw, ns1.oknet.tw and 4 other.

Host names that point to one IP address:

dns1.f1.com.tw resolves to the IP address 218.32.213.234.

dns2.f1.com.tw resolves to the IP address 220.228.6.17.

sp234.f1.com.tw resolves to the IP address 218.32.213.234.

ns1.icstock.com.tw resolves to the IP address 218.32.213.228.

ns2.icstock.com.tw resolves to the IP address 218.32.210.72.

dns1.f1.com.tw and sp234.f1.com.tw each have 218.32.213.234 IP addresses.

Mail Servers

io520.com delegates mail to two mail servers, namely io520.com and www.io520.com.

Each of io520.com and www.io520.com points to exactly one IP address: 60.199.193.248.

io520.com and www.io520.com each have 60.199.193.248 IP addresses.