cdh.com.tw - robtex.com
cdh.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | vdns2.seed.net.tw ⭐ | ||||||
| A | 61.20.46.204🇹🇼 FET-TW61.20.0.0/16 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan | ||||||
| PTR | vdns2.seed.net.tw | ||||||
| NS | vdns1.seed.net.tw | ||||||
| A | 61.20.46.203🇹🇼 FET-TW61.20.0.0/16 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan | ||||||
| PTR | vdns1.seed.net.tw | ||||||
| MX | mailfilter.cdh.com.tw ⭐ | ||||||
| A | 210.71.187.212🇹🇼 HiNet210.71.128.0/17 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | mailfilter.hibox.hinet.net | ||||||
| TXT | v=spf1 include:hibox.hinet.net ~all | ||||||
| SOA | vdns2.seed.net.twsysop@vdns2.seed.net.tw 2023-07-26 #14 | ||||||
com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.twnic.net.tw ⭐ ⚠️ Not in parent delegation | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | c.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | d.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | e.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | f.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | g.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | h.dns.tw ⚠️ Not in parent delegation | ||||||
| NS | h.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| SOA | a.twnic.net.twsnw@twnic.net.tw serial=2006334365 | ||||||
WOT: SAFE (58/100)
Subdomains
www.cdh.com.tw |
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSvdns1.seed.net.tw2018-05-17 → 2026-03-21 · 2 obs
● 2026-03-21 09:41:38
●NSvdns2.seed.net.tw2018-05-17 → 2026-03-21 · 2 obs
● 2026-03-21 09:41:38
●MXmailfilter.cdh.com.tw2018-05-17 → 2026-03-21 · 2 obs
● 2026-03-21 09:41:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| cdh.com.tw | vdns1.seed.net.tw, vdns2.seed.net.tw | - |
✅ Authoritative Response
Server: 61.20.46.203
NS records: vdns1.seed.net.tw, vdns2.seed.net.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdh.com.tw (unsigned zone)
⏱️ Timing
Total: 2169ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | vdns2.seed.net.tw, vdns1.seed.net.tw |
| MX | 1 | mailfilter.cdh.com.tw (pri: 5) |
| TXT | 1 | v=spf1 include:hibox.hinet.net ~all |
| SOA | 1 | vdns2.seed.net.tw sysop.vdns2.seed.net.t |
Analysis
Hierarchy
www.cdh.com.tw has cdh.com.tw as its parent.
Name Servers
Two name servers vdns1.seed.net.tw and vdns2.seed.net.tw are delegated to cdh.com.tw.
cdh.com.tw uses the same name server configuration as other domains, such as ftsice.com.tw, chiens.com.tw, flukecal.com.tw, everspringchem.com.tw and drm.tw.
cdh.com.tw at least partially shares name servers with other domains such as miyake-design.com.tw, flyo.tw, catleg.tw, cepheus.com.tw and hegii.com.tw.
These name servers are commonly used with vdns3.seed.net.tw and vdns4.seed.net.tw.
Host names with a single IP address:
vdns1.seed.net.tw points to 61.20.46.203
vdns2.seed.net.tw points to 61.20.46.204
Mail Servers
cdh.com.tw is handled by a single mail server, mailfilter.cdh.com.tw.
mailfilter.cdh.com.tw points to one IP number: 210.71.187.212.