b173b.com - robtex.com
b173b.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.131.168🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-168.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 | b173b.com ⭐ | ||||||
| A | 220.228.131.168🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-168.ll.sparqnet.net | ||||||
| MX | www.b173b.com(14) | ||||||
| A | 220.228.131.168🇹🇼 NCIC-TW220.228.131.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | ll-220-228-131-168.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=1777119562 | ||||||
MX for
b173b.com |
Subdomains
www.b173b.com |
Same first word
b173b.com |
Similar names
DNS History
8 records (8 active, 0 former)
●NSns1.icstock.com.tw2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-25 12:43:54
●NSns2.icstock.com.tw2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-25 12:43:54
●MXb173b.com2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-25 12:43:54
●MXwww.b173b.com2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-25 12:43:54
●A220.228.131.1682026-04-07 → 2026-04-25 · 2 obs
● 2026-04-25 12:43:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| b173b.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 b173b.com (unsigned zone)
⏱️ Timing
Total: 1538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.131.168 |
| NS | 2 | dns2.f1.com.tw, dns1.f1.com.tw |
| MX | 2 | b173b.com (pri: 10), www.b173b.com (pri: 14) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Hierarchy
The parent of www.b173b.com is b173b.com.
Mail Server Role
b173b.com serves as a mail server for b173b.com.
www.b173b.com serves as a mail server, commonly paired with b173b.com.
IP Addresses
b173b.com points to a single IP: 220.228.131.168.
Other host names, for instance e7g5.com, www.rctdk.com, show99a.com, www.b173b.com and www.9453dd.com share IP numbers with b173b.com.
Name Servers
b173b.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.
b173b.com partially shares name servers with other domains; examples include av-room.com, x274.com, 383-chat.com, u607.com and 96-meimei.com.
These name servers are commonly used with ns1.oknet.tw, ns2.oknet.tw and sf243.f1.com.tw.
Host names pointing to 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
b173b.com is handled by two mail servers: b173b.com and www.b173b.com.
Host names with one IP number
Host name b173b.com points to 220.228.131.168
Host name www.b173b.com points to 220.228.131.168
Host names that point to 220.228.131.168: b173b.com and www.b173b.com