cf6a.com - dns.ninja
cf6a.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.6.220🇹🇼 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 | cf6a.com ⭐ | ||||||
| A | 220.228.6.220🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| MX | www.cf6a.com(14) | ||||||
| A | 220.228.6.220🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| SOA | dns1.f1.com.twohgo@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.netnstld@verisign-grs.com serial=1786203444 | ||||||
MX for
cf6a.com |
Subdomains
Same first word
cf6a.com |
Similar names
DNS History
17 records (8 active, 9 former)
●NSdns1.f1.com.tw2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
○NSdns1.name-services.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
●NSdns2.f1.com.tw2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
○NSdns2.name-services.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
○NSdns3.name-services.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
○NSdns4.name-services.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
○NSdns5.name-services.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
●NSns1.icstock.com.tw2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
●NSns2.icstock.com.tw2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
●NSsp234.f1.com.tw2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
●MXcf6a.com2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
○MXmail.cf6a.com2015-10-30 → 2019-12-31 · 4 obs
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
●MXwww.cf6a.com2026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
○A220.133.149.1872015-10-30 → 2015-10-30 · 3 obs
○ 2016-01-16 14:24:10
○ 2026-08-08 15:46:14
●A220.228.6.2202026-04-03 → 2026-08-08 · 3 obs
● 2026-04-03 14:15:50
● 2026-08-08 15:46:14
○A61.216.58.12016-01-16 → 2016-04-20 · 5 obs
● 2016-01-16 14:24:10
● 2016-04-20 20:05:54
○ 2017-02-05 20:39:18
○ 2026-08-08 15:46:14
○A61.222.191.2352017-02-05 → 2019-12-31 · 5 obs
● 2017-02-05 20:39:18
● 2019-12-31 00:40:50
○ 2026-04-03 14:15:50
○ 2026-08-08 15:46:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| cf6a.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 cf6a.com (unsigned zone)
⏱️ Timing
Total: 1164ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.6.220 |
| NS | 2 | dns1.f1.com.tw, dns2.f1.com.tw |
| MX | 2 | cf6a.com (pri: 10), www.cf6a.com (pri: 14) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Hierarchy
www.cf6a.com and mail.cf6a.com each fall under cf6a.com as their parent domain.
Mail Server Role
cf6a.com handles its own mail, functioning as its own mail server.
www.cf6a.com is a mail server commonly deployed alongside cf6a.com.
IP Addresses
cf6a.com resolves to just one IP address, 220.228.6.220.
Two other host names, along with 172363.e672y.com, g5678k.com and www.aut653.com, also share IP numbers with cf6a.com.
Name Servers
cf6a.com delegates to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw and two others.
cf6a.com has at least partial name server overlap with other domains, such as meimei-176.com, ons1007.com, kk383.com and two others.
The name servers ns1.icstock.com.tw, ns2.icstock.com.tw, sf243.f1.com.tw and two others are commonly seen in use alongside these name servers.
Host names that point to one IP address:
The hostname dns1.f1.com.tw resolves to 218.32.213.234.
The hostname dns2.f1.com.tw resolves to 220.228.6.17.
The hostname sp234.f1.com.tw resolves to 218.32.213.234.
The hostname ns1.icstock.com.tw resolves to 218.32.213.228.
The hostname ns2.icstock.com.tw resolves to 218.32.210.72.
dns1.f1.com.tw along with sp234.f1.com.tw each resolve to 218.32.213.234 IP addresses.
Mail Servers
cf6a.com relies on two mail servers for delivery — cf6a.com and www.cf6a.com.
cf6a.com directs to 220.228.6.220, as does www.cf6a.com — both hostnames resolve to that one IP address.
cf6a.com along with www.cf6a.com each resolve to 220.228.6.220 IP addresses.