rctdn.com - robtex.com
rctdn.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. | ||||||
| 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 | rctdn.com ⭐ | ||||||
| A | 220.228.6.157🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| MX | www.rctdn.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=1774394827 | ||||||
MX for
rctdn.com |
Same first word
rctdn.com |
Similar names
DNS History
8 records (8 active, 0 former)
●NSns1.icstock.com.tw2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 23:35:48
●NSns2.icstock.com.tw2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 23:35:48
●MXrctdn.com2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 23:35:48
●MXwww.rctdn.com2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 23:35:48
●A220.228.6.1572026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 23:35:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| rctdn.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 rctdn.com (unsigned zone)
⏱️ Timing
Total: 1235ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.6.157 |
| NS | 2 | dns1.f1.com.tw, dns2.f1.com.tw |
| MX | 2 | www.rctdn.com (pri: 14), rctdn.com (pri: 10) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Mail Server Role
rctdn.com serves as the mail server for rctdn.com.
www.rctdn.com is commonly used as a mail server alongside rctdn.com.
IP Addresses
rctdn.com resolves to one IP number: 220.228.6.157.
Other host names, for instance d099.com, jin1s.com, okka.fun, bndvh.com and utav1.com share IP numbers with rctdn.com.
Name Servers
rctdn.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.
rctdn.com at least partially shares name servers with other domains, including rtg603.com, po02.com, s429.com, x351.com and ye56m.com.
These name servers are commonly used with ns1.oknet.tw, ns2.oknet.tw and sf243.f1.com.tw.
Host names with one 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 sp234.f1.com.tw points to: 218.32.213.234.
The host name ns1.icstock.com.tw points to: 218.32.213.228.
The host name 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
rctdn.com is handled by two mail servers: rctdn.com and www.rctdn.com.
Host names with a single IP number:
The host name rctdn.com points to 220.228.6.157.
The host name www.rctdn.com points to 220.228.6.157.
Host names pointing to 220.228.6.157: rctdn.com and www.rctdn.com.