sci.com.tw - dns.ninja
sci.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | service.sci.com.tw ⭐ | ||||||
| NS | vns2.hinet.net ⚠️ Not in zone NS records | ||||||
| A | 2001:b000:180:80d:203:74:116:212🇹🇼 HiNet2001:b000:100::/40 | ||||||
| PTR | vns2.hinet.net | ||||||
| A | 203.74.116.212🇹🇼 HiNet203.74.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | vns2.hinet.net | ||||||
| SOA | service.sci.com.twroot@service.sci.com.tw serial=53 | ||||||
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=2006391139 | ||||||
WOT: SAFE (58/100)
Subdomains
exchange.sci.com.tw |
Same first word
Similar names
DNS History
6 records (2 active, 4 former)
●NSservice.sci.com.tw2015-07-23 → 2026-08-11 · 2 obs
● 2026-08-11 20:55:36
●NSvns2.hinet.net2026-02-24 → 2026-08-11 · 3 obs
● 2026-02-24 04:54:24
● 2026-08-11 20:55:36
○MXmailgw.sci.com.tw2026-03-14 → 2026-07-09 · 12 obs
● 2026-03-14 10:44:32
● 2026-03-28 12:23:04
○ 2026-03-31 00:02:30
○ 2026-05-05 16:36:20
● 2026-05-07 00:03:24
○ 2026-05-13 08:28:00
○ 2026-06-08 04:51:06
● 2026-06-18 21:35:12
○ 2026-07-08 03:28:38
● 2026-07-09 15:35:18
○ 2026-08-11 20:55:36
○MXservice.sci.com.tw2015-07-23 → 2018-09-10 · 4 obs
● 2018-09-10 20:37:28
○ 2026-02-24 04:54:24
○ 2026-08-11 20:55:36
○A136.243.105.1102026-07-08 → 2026-07-08 · 3 obs
● 2026-07-08 03:28:38
○ 2026-08-11 20:55:36
○A34.138.222.2082026-03-28 → 2026-06-18 · 12 obs
○ 2026-03-14 10:44:32
● 2026-03-28 12:23:04
● 2026-03-31 00:02:30
○ 2026-04-08 01:51:44
● 2026-05-05 16:36:20
○ 2026-05-07 00:03:24
● 2026-05-13 08:28:00
○ 2026-06-08 04:51:06
● 2026-06-18 21:35:12
○ 2026-07-08 03:28:38
○ 2026-08-11 20:55:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| sci.com.tw | vns2.hinet.net, service.sci.com.tw | 1 record |
✅ Authoritative Response
Server:125.227.103.3
NS records: vns2.hinet.net, service.sci.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sci.com.tw (unsigned zone)
⏱️ Timing
Total: 2507ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 1 | mailgw.sci.com.tw (pri: 10) |
| TXT | 4 | google-site-verification=BgOK6hb9-lvmc9H, google-site-verification=zo3HvPLWaaW3Qza... |
| SOA | 1 | service.sci.com.tw root.service.sci.com. |
📌 Glue Records Collected
Total: 1
In-bailiwick: 1 (service.sci.com.tw)
Analysis
Hierarchy
exchange.sci.com.tw is delegated beneath sci.com.tw.
Name Servers
DNS delegation for sci.com.tw points to two name servers: vns2.hinet.net and service.sci.com.tw.
There is at least partial name server overlap between sci.com.tw and other domains — 226.229.61.in-addr.arpa, 216.219.61.in-addr.arpa, 217.95.168.in-addr.arpa and two more among them.
These name servers are routinely deployed together with the name servers vns1.hinet.net.
Host names pointing to two IP addresses:
vns2.hinet.net has two IP addresses: 203.74.116.212 and 2001:b000:180:80d:203:74:116:212.