prdsu.com - dns.ninja
prdsu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.131.167🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-167.ll.sparqnet.net | ||||||
| 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 | prdsu.com ⭐ | ||||||
| A | 220.228.131.167🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-167.ll.sparqnet.net | ||||||
| MX | www.prdsu.com(14) | ||||||
| A | 220.228.131.167🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-167.ll.sparqnet.net | ||||||
| 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=1786922814 | ||||||
MX for
prdsu.com |
Subdomains
www.prdsu.com |
Same first word
prdsu.com |
Similar names
DNS History
8 records (8 active, 0 former)
●NSns1.icstock.com.tw2026-02-16 → 2026-08-16 · 2 obs
● 2026-08-16 23:39:58
●NSns2.icstock.com.tw2026-02-16 → 2026-08-16 · 2 obs
● 2026-08-16 23:39:58
●MXprdsu.com2026-02-16 → 2026-08-16 · 2 obs
● 2026-08-16 23:39:58
●MXwww.prdsu.com2026-02-16 → 2026-08-16 · 2 obs
● 2026-08-16 23:39:58
●A220.228.131.1672026-02-16 → 2026-08-16 · 2 obs
● 2026-08-16 23:39:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net... | - |
| prdsu.com | ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw | - |
✅ Authoritative Response
Server:218.32.210.72
NS records: ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for prdsu.com (unsigned zone)
⏱️ Timing
Total: 1234ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.131.167 |
| NS | 2 | dns2.f1.com.tw, dns1.f1.com.tw |
| MX | 2 | prdsu.com (pri: 10), www.prdsu.com (pri: 14) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Hierarchy
prdsu.com serves as the parent of www.prdsu.com.
Mail Server Role
prdsu.com acts as its own mail server.
www.prdsu.com is often seen acting as a mail server in combination with prdsu.com.
IP Addresses
prdsu.com points to a single IP number: 220.228.131.167.
Additional host names — www.9453ff.com, www.newjiawei.com, www.sxsz22.com and two others — share IP numbers with prdsu.com.
Name Servers
Delegation for prdsu.com is to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw and two others.
prdsu.com has at least partial name server overlap with other domains, such as 54zzh.com, wife1314.com, k998u.com and two others.
These name servers are frequently paired with the name servers ns1.icstock.com.tw, ns2.icstock.com.tw, ns1.oknet.tw and two others.
Host names pointing to a single IP address:
dns1.f1.com.tw directs to 218.32.213.234.
dns2.f1.com.tw directs to 220.228.6.17.
sp234.f1.com.tw directs to 218.32.213.234.
ns1.icstock.com.tw directs to 218.32.213.228.
ns2.icstock.com.tw directs to 218.32.210.72.
Host names pointing to 218.32.213.234 IP addresses: dns1.f1.com.tw and sp234.f1.com.tw.
Mail Servers
prdsu.com uses two mail servers, prdsu.com and www.prdsu.com.
Both prdsu.com and www.prdsu.com have a single IP address, 220.228.131.167, and share it.
Host names pointing to 220.228.131.167 IP addresses: prdsu.com and www.prdsu.com.