cei.org.tw - robtex.com
cei.org.tw
org.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=1999640651 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1.bdm.microsoftonline.com2026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
●NSns2.bdm.microsoftonline.com2026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
●NSns3.bdm.microsoftonline.com2026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
●NSns4.bdm.microsoftonline.com2026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
●MXcei-org-tw.mail.protection.outlook.com2026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
●A223.27.39.802026-02-16 → 2026-04-12 · 2 obs
● 2026-04-12 04:41:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| org.tw | a.twnic.net.tw, f.twnic.net.tw, h.twnic.net.tw, d.twnic.net.tw... | 17 records |
| cei.org.tw | ns3.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com | - |
✅ Authoritative Response
Server:13.107.236.208
NS records: ns3.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cei.org.tw (unsigned zone)
⏱️ Timing
Total: 1269ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 223.27.39.80 |
| NS | 4 | ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com... |
| MX | 1 | cei-org-tw.mail.protection.outlook.com ( |
| TXT | 2 | v=spf1 include:spf.protection.outlook.co, mscid=eO66E5tHb+uCeTS2GQkPrSuCWlVivzFj3Z |
| SOA | 1 | ns1.bdm.microsoftonline.com azuredns-hos |
📌 Glue Records Collected
Total: 17
Out-of-bailiwick: 17 (h.twnic.net.tw, g.twnic.net.tw, f.twnic.net.tw...)
Analysis
IP Addresses
cei.org.tw points to a single IP number: 223.27.39.80.
Other host names, for instance ns2.roosterlighting.com, soez.com.tw, www.kronotex.tw, ns2.charwie.com.tw and ns1.yeundeng.com share IP numbers with cei.org.tw.
Name Servers
cei.org.tw is delegated to four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.
cei.org.tw at least partially shares name servers with other domains, for instance aj-engr.com, mmfashioninc.com, speedlight.ch, faytech.com and hewer.com.
Host names with two IP numbers:
ns1.bdm.microsoftonline.com points to: 2603:1061:0:700::d0 and 13.107.236.208.
ns2.bdm.microsoftonline.com points to: 2620:1ec:8ec:700::d0 and 150.171.21.208.
ns3.bdm.microsoftonline.com points to: 2a01:111:4000:700::d0 and 204.14.183.208.
ns4.bdm.microsoftonline.com points to: 2620:1ec:bda:700::d0 and 208.84.5.208.
Mail Servers
cei.org.tw is handled by a single mail server, cei-org-tw.mail.protection.outlook.com.
The host name cei-org-tw.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.