isp.com.tw - dns.ninja
isp.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 143.95.237.56🇺🇸 EIGI143.95.224.0/19 NF DALLAS Route Object | ||||||
| PTR | ip-143-95-237-56.iplocal | ||||||
| NS | ns1.webserversystems.com ⭐ | ||||||
| A | 162.214.130.211🇺🇸 EIGI162.214.0.0/15 Unified Layer | ||||||
| PTR | 162-214-130-211.unifiedlayer.com | ||||||
| NS | ns2.webserversystems.com | ||||||
| A | 162.214.129.91🇺🇸 EIGI162.214.0.0/15 Unified Layer | ||||||
| PTR | 162-214-129-91.unifiedlayer.com | ||||||
| MX | isp.com.tw ⭐ | ||||||
| A | 143.95.237.56🇺🇸 EIGI143.95.224.0/19 NF DALLAS Route Object | ||||||
| PTR | ip-143-95-237-56.iplocal | ||||||
| SOA | ns1.webserversystems.comroot@localhost.localdomain 2021-12-06 #2 | ||||||
com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.twnic.net.tw ⭐ | ||||||
| NS | anytld.apnic.net | ||||||
| NS | b.twnic.net.tw | ||||||
| NS | c.twnic.net.tw | ||||||
| NS | d.twnic.net.tw | ||||||
| NS | e.twnic.net.tw | ||||||
| NS | f.twnic.net.tw | ||||||
| NS | g.twnic.net.tw | ||||||
| NS | h.dns.tw | ||||||
| NS | h.twnic.net.tw | ||||||
| SOA | a.twnic.net.twsnw@twnic.net.tw serial=2006389621 | ||||||
MX for
isp.com.tw |
Subdomains
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
○NSns1-wedmore.webserversystems.com2015-08-09 → 2016-05-27 · 4 obs
● 2016-05-27 02:54:06
○ 2016-07-19 04:16:32
○ 2026-08-06 07:14:08
○NSns1.isp.com.tw2015-08-09 → 2016-05-27 · 4 obs
● 2016-05-27 02:54:06
○ 2016-07-19 04:16:32
○ 2026-08-06 07:14:08
●NSns1.webserversystems.com2016-07-19 → 2026-08-06 · 3 obs
● 2016-07-19 04:16:32
● 2026-08-06 07:14:08
○NSns2-wedmore.webserversystems.com2015-08-09 → 2016-05-27 · 4 obs
● 2016-05-27 02:54:06
○ 2016-07-19 04:16:32
○ 2026-08-06 07:14:08
●NSns2.webserversystems.com2016-07-19 → 2026-08-06 · 3 obs
● 2016-07-19 04:16:32
● 2026-08-06 07:14:08
●MXisp.com.tw2015-08-09 → 2026-08-06 · 5 obs
● 2026-05-03 21:47:36
○ 2026-05-07 20:45:46
● 2026-05-11 03:58:48
● 2026-08-06 07:14:08
●A143.95.237.562016-07-19 → 2026-08-06 · 6 obs
● 2016-07-19 04:16:32
● 2026-05-03 21:47:36
○ 2026-05-07 20:45:46
● 2026-05-11 03:58:48
● 2026-08-06 07:14:08
○A174.120.172.1622015-08-09 → 2016-05-27 · 4 obs
● 2016-05-27 02:54:06
○ 2016-07-19 04:16:32
○ 2026-08-06 07:14:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com.tw | g.twnic.net.tw, c.twnic.net.tw, b.twnic.net.tw, h.twnic.net.tw... | - |
| isp.com.tw | ns1.webserversystems.com, ns2.webserversystems.com | - |
✅ Authoritative Response
Server:162.214.130.211
NS records: ns1.webserversystems.com, ns2.webserversystems.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for com.tw (unsigned zone)
⏱️ Timing
Total: 552ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 143.95.237.56 |
| NS | 2 | ns2.webserversystems.com, ns1.webserversystems.com |
| MX | 1 | isp.com.tw (pri: 0) |
| SOA | 1 | ns1.webserversystems.com root.localhost. |
Analysis
Hierarchy
ns1.isp.com.tw and ns2.isp.com.tw each fall under isp.com.tw as their parent domain.
Mail Server Role
isp.com.tw handles its own mail, functioning as its own mail server.
IP Addresses
isp.com.tw resolves to just one IP address, 143.95.237.56.
Two other host names, along with hsiaoi.com.au, ns1.gm3s.com.mx and lsia.com.au, also share IP numbers with isp.com.tw.
Name Servers
The NS records for isp.com.tw delegate to ns1.webserversystems.com and ns2.webserversystems.com.
isp.com.tw shares its NS records with other domains, for example chitla.com, eastfinancial.com, sxor.com and two others.
There is at least partial name server overlap between isp.com.tw and other domains — superbowlhost.com, skinartgallery.net, essentialmultimedia.ca and two more among them.
The name servers ns1.site5.com, ns2.site5.com, ns3.startindex.com and two others are commonly seen in use alongside these name servers.
ns1.webserversystems.com → 162.214.130.211 and ns2.webserversystems.com → 162.214.129.91: one IP number per host name.
Mail Servers
isp.com.tw is served by just one mail server: isp.com.tw.
isp.com.tw resolves to 143.95.237.56 and no other IP number.