coaching.tw - robtex.com
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coaching.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.254.17.23🇹🇼 YUANJHEN-TW | ||||||
| PTR | re34.cx901.com | ||||||
| NS | ns49.cx901.com ⭐ | ||||||
| A | 43.254.17.21🇹🇼 YUANJHEN-TW | ||||||
| PTR | 43-254-17-21.static.ip.net.tw | ||||||
| NS | ns50.cx901.com | ||||||
| A | 43.254.17.22🇹🇼 YUANJHEN-TW | ||||||
| PTR | 43-254-17-22.static.ip.net.tw | ||||||
| MX | coaching.tw ⭐ | ||||||
| A | 43.254.17.23🇹🇼 YUANJHEN-TW | ||||||
| PTR | re34.cx901.com | ||||||
| TXT | v=spf1 ip4:43.254.17.20 include:_spf.eee.tw ip4:43.254.17.251 +a +mx ~all | ||||||
| SOA | ns49.cx901.comalovea1113@gmail.com 2026-01-01 #1 | ||||||
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 serial=2010988498 | ||||||
MX for
coaching.tw |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSdns.twmail.org2015-08-12 → 2017-01-27 · 4 obs
● 2017-01-27 18:16:14
○ 2026-02-18 05:54:36
○ 2026-02-18 13:07:10
○NSdns2.twmail.org2015-08-12 → 2017-01-27 · 4 obs
● 2017-01-27 18:16:14
○ 2026-02-18 05:54:36
○ 2026-02-18 13:07:10
●NSns49.cx901.com2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 05:54:36
● 2026-02-18 13:07:10
●NSns50.cx901.com2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 05:54:36
● 2026-02-18 13:07:10
●MXcoaching.tw2026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 05:54:36
● 2026-02-18 13:07:10
○MXntvirus.url.com.tw2015-08-12 → 2017-01-27 · 4 obs
● 2017-01-27 18:16:14
○ 2026-02-18 05:54:36
○ 2026-02-18 13:07:10
○MXntvirus2.url.com.tw2015-08-12 → 2017-01-27 · 4 obs
● 2017-01-27 18:16:14
○ 2026-02-18 05:54:36
○ 2026-02-18 13:07:10
○A210.59.228.1672015-08-12 → 2017-01-27 · 4 obs
● 2017-01-27 18:16:14
○ 2026-02-18 05:54:36
○ 2026-02-18 13:07:10
●A43.254.17.232026-02-18 → 2026-02-18 · 3 obs
● 2026-02-18 05:54:36
● 2026-02-18 13:07:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | e.dns.tw, f.dns.tw, g.dns.tw, h.dns.tw... | 16 records |
| coaching.tw | ns50.cx901.com, ns49.cx901.com | - |
✅ Authoritative Response
Server: 43.254.17.21
NS records: ns50.cx901.com, ns49.cx901.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coaching.tw (unsigned zone)
⏱️ Timing
Total: 1754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.254.17.23 |
| NS | 2 | ns50.cx901.com, ns49.cx901.com |
| MX | 1 | coaching.tw (pri: 0) |
| TXT | 1 | v=spf1 ip4:43.254.17.20 include:_spf.eee |
| SOA | 1 | ns49.cx901.com alovea1113.gmail.com |
📌 Glue Records Collected
Total: 16
In-bailiwick: 14 (h.dns.tw, g.dns.tw, f.dns.tw...)
Out-of-bailiwick: 2 (anytld.apnic.net, anytld.apnic.net)
AI analysis
For coaching.tw, the mail server is coaching.tw.
coaching.tw resolves to one IP number: 43.254.17.23.
other host names including aesolution.com.tw, taiwanreecos.com, compacelectric.com, pests.com.tw and taishow.com.tw share IP numbers with coaching.tw.
coaching.tw is delegated to two name servers ns49.cx901.com and ns50.cx901.com.
coaching.tw shares the same name server setup as other domains, for instance s88.com.tw, apure.tw, temples.tw, mutech.com.tw and huanglong.com.tw.
Host names with one IP number:
ns49.cx901.com points to 43.254.17.21
ns50.cx901.com points to 43.254.17.22
coaching.tw is served by a single mail server, coaching.tw.
coaching.tw resolves to IP 43.254.17.23.