rctdm.com - robtex.com
rctdm.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.6.157🇹🇼 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. | ||||||
| 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 | rctdm.com ⭐ | ||||||
| A | 220.228.6.157🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| MX | www.rctdm.com(14) | ||||||
| A | 220.228.6.157🇹🇼 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=1774389407 | ||||||
MX for
rctdm.com |
Same first word
rctdm.com |
Similar names
DNS History
11 records (8 active, 3 former)
●NSdns1.f1.com.tw2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
●NSdns2.f1.com.tw2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
●NSns1.icstock.com.tw2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
●NSns2.icstock.com.tw2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
●NSsp234.f1.com.tw2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
○NSv1s1.xundns.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-09-16 12:40:02
○ 2026-03-24 22:06:06
○NSv1s2.xundns.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-09-16 12:40:02
○ 2026-03-24 22:06:06
●MXrctdm.com2026-02-23 → 2026-03-24 · 2 obs
● 2026-03-24 22:06:06
●MXwww.rctdm.com2026-02-23 → 2026-03-24 · 2 obs
● 2026-03-24 22:06:06
●A220.228.6.1572026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 15:06:02
● 2026-03-24 22:06:06
○A45.35.127.1992016-12-13 → 2016-12-13 · 3 obs
○ 2017-09-16 12:40:02
○ 2026-03-24 22:06:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net... | - |
| rctdm.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 rctdm.com (unsigned zone)
⏱️ Timing
Total: 1579ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.6.157 |
| NS | 2 | dns2.f1.com.tw, dns1.f1.com.tw |
| MX | 2 | rctdm.com (pri: 10), www.rctdm.com (pri: 14) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Mail Server Role
rctdm.com serves as the mail server for rctdm.com.
www.rctdm.com commonly serves as a mail server along with rctdm.com.
IP Addresses
rctdm.com points to an IP address: 220.228.6.157.
other host names include www.utav1.com, www.7555w.com, 7555w.com, d099.com and rctdn.com; they share IP numbers with rctdm.com.
Name Servers
rctdm.com is delegated to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw, ns1.icstock.com.tw and ns2.icstock.com.tw.
rctdm.com at least partially shares name servers with other domains, for instance msg888.com, pv84.com, wiwe.com.tw, 176girl.com and 5tank.com.
These name servers are commonly used with the following: ns1.oknet.tw, ns2.oknet.tw, sf243.f1.com.tw and sp76.f1.com.tw.
Host names with one IP number:
The host names map to their IPs: 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.
Host names that point to 218.32.213.234: dns1.f1.com.tw and sp234.f1.com.tw.
Mail Servers
Two mail servers handle rctdm.com: rctdm.com and www.rctdm.com.
Host names with a single IP
rctdm.com points to 220.228.6.157
www.rctdm.com points to 220.228.6.157
Host names that point to 220.228.6.157: rctdm.com and www.rctdm.com