a123.tw - robtex.com
a123.tw
tw
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.tw ⭐ | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.dns.tw | ||||||
| NS | c.dns.tw | ||||||
| NS | d.dns.tw | ||||||
| NS | e.dns.tw | ||||||
| NS | f.dns.tw | ||||||
| NS | g.dns.tw | ||||||
| NS | h.dns.tw | ||||||
| SOA | a.dns.twsnw@twnic.net.tw 2011-05-15 #69 | ||||||
Same first word
a123.de |
a123.com |
a123.ca |
a123.myftp.biz |
a123.store |
a123.xyz |
a123.tw |
a123.co.jp |
a123.cn |
a123.nl |
a123.it |
a123.net |
a123.cam |
a123.ee |
a123.dk |
a123.pl |
a123.ddnsking.com |
a123.co.kr |
a123.in |
a123.pro |
Similar names
DNS History
6 records (5 active, 1 former)
●NSdns.twmail.org2018-05-08 → 2026-08-16 · 2 obs
● 2026-08-16 07:10:14
●NSdns2.twmail.org2018-05-08 → 2026-08-16 · 2 obs
● 2026-08-16 07:10:14
●MXntvirus.url.com.tw2018-05-08 → 2026-08-16 · 2 obs
● 2026-08-16 07:10:14
●MXntvirus2.url.com.tw2018-05-08 → 2026-08-16 · 2 obs
● 2026-08-16 07:10:14
○A210.59.228.2372018-05-08 → 2018-05-08 · 3 obs
○ 2026-05-18 12:37:32
○ 2026-08-16 07:10:14
●A211.72.206.102026-05-18 → 2026-08-16 · 3 obs
● 2026-05-18 12:37:32
● 2026-08-16 07:10:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| a123.tw | dns2.twmail.org, dns.twmail.org | - |
✅ Authoritative Response
Server:211.72.204.250
NS records: dns2.twmail.org, dns.twmail.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a123.tw (unsigned zone)
⏱️ Timing
Total: 1558ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.72.206.10 |
| NS | 2 | dns.twmail.org, dns2.twmail.org |
| MX | 2 | ntvirus2.url.com.tw (pri: 10), ntvirus.url.com.tw (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:210.59.228.0/24 ip4:210. |
| SOA | 1 | dns.twmail.org admin.corp.url.com.tw |
Analysis
IP Addresses
a123.tw directs to one IP number, which is 211.72.206.10.
Among the host names that share IP numbers with a123.tw are kris.tw, grammy-lighting.com.tw, www.sdmodel.com.tw and two others.
Name Servers
DNS delegation for a123.tw points to two name servers: dns2.twmail.org and dns.twmail.org.
a123.tw has the same name server delegation as a number of other domains, such as sonping.url.tw, hualientour.com.tw, skygenint.com and two more.
There is an overlap in name servers between a123.tw and other domains, for example ch168.com.tw, ebtec.com.tw and yusantire.com.tw
dns2.twmail.org directs to 211.72.204.250 and 2001:b034:201:400:211:72:204:250. dns.twmail.org directs to 210.59.228.119 and 2001:b034:1:800:210:59:228:119. Each host name carries two IP addresses.
Mail Servers
The MX records for a123.tw point to two mail servers: ntvirus2.url.com.tw and ntvirus.url.com.tw.
a123.tw has the same mail server arrangement as a number of other domains, for example alldala.com, littledaemon.idv.tw, formosahappiness.org and two more.
The mail servers for a123.tw overlap at least partially with those of other domains, including kayaker.org.tw and gtec.com.tw.
Each of the hosts ntvirus2.url.com.tw and ntvirus.url.com.tw points to four IP numbers: ntvirus2.url.com.tw directs to 210.59.228.117, 210.59.228.172, 210.59.228.173 and 210.59.228.178 and ntvirus.url.com.tw points to 210.59.228.117, 210.59.228.172, 210.59.228.173 and 210.59.228.178.
Host names pointing to 210.59.228.117 IP addresses: ntvirus2.url.com.tw and ntvirus.url.com.tw.
Host names pointing to 210.59.228.172 IP addresses: ntvirus2.url.com.tw and ntvirus.url.com.tw.
Host names pointing to 210.59.228.173 IP addresses: ntvirus2.url.com.tw and ntvirus.url.com.tw.
Host names pointing to 210.59.228.178 IP addresses: ntvirus2.url.com.tw and ntvirus.url.com.tw.