www.java.com.tw - dns.ninja
www.java.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.6.21🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
java.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.6.21🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| NS | dns1.f1.com.tw ⭐ | ||||||
| NS | dns2.f1.com.tw | ||||||
| MX | java.com.tw ⭐ | ||||||
| MX | www.java.com.tw(14) | ||||||
| SOA | dns1.f1.com.twohgo@ms23.hinet.net 2000-11-01 #8 | ||||||
MX for
Same first word
DNS History
5 records (1 active, 4 former)
●A220.228.6.212026-04-18 → 2026-07-23 · 3 obs
○ 2026-04-13 02:17:02
● 2026-04-18 16:47:22
● 2026-07-23 23:34:32
● 2026-04-18 16:47:22
● 2026-07-23 23:34:32
○A220.228.6.422017-08-07 → 2018-01-23 · 5 obs
○ 2016-12-17 08:28:40
● 2017-08-07 04:00:22
● 2018-01-23 21:34:42
○ 2026-03-27 15:09:16
○ 2026-07-23 23:34:32
● 2017-08-07 04:00:22
● 2018-01-23 21:34:42
○ 2026-03-27 15:09:16
○ 2026-07-23 23:34:32
○A220.228.6.592015-10-25 → 2026-04-13 · 9 obs
○ 2015-10-07 15:24:26
● 2015-10-25 10:08:40
● 2016-12-17 08:28:40
○ 2017-08-07 04:00:22
○ 2018-01-23 21:34:42
● 2026-03-27 15:09:16
● 2026-04-13 02:17:02
○ 2026-04-18 16:47:22
○ 2026-07-23 23:34:32
● 2015-10-25 10:08:40
● 2016-12-17 08:28:40
○ 2017-08-07 04:00:22
○ 2018-01-23 21:34:42
● 2026-03-27 15:09:16
● 2026-04-13 02:17:02
○ 2026-04-18 16:47:22
○ 2026-07-23 23:34:32
○A220.228.6.802015-10-07 → 2015-10-07 · 4 obs
○ 2015-09-20 21:34:58
● 2015-10-07 15:24:26
○ 2015-10-25 10:08:40
○ 2026-07-23 23:34:32
● 2015-10-07 15:24:26
○ 2015-10-25 10:08:40
○ 2026-07-23 23:34:32
○A61.66.228.472015-07-25 → 2015-09-20 · 4 obs
● 2015-07-25 17:25:56
● 2015-09-20 21:34:58
○ 2015-10-07 15:24:26
○ 2026-07-23 23:34:32
● 2015-09-20 21:34:58
○ 2015-10-07 15:24:26
○ 2026-07-23 23:34:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | 16 records |
| java.com.tw | dns2.f1.com.tw, dns1.f1.com.tw | 2 records |
✅ Authoritative Response
Server:218.32.213.234
NS records: dns2.f1.com.tw, dns1.f1.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for java.com.tw (unsigned zone)
⏱️ Timing
Total: 1309ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.6.21 |
📌 Glue Records Collected
Total: 18
In-bailiwick: 14 (a.dns.tw, b.dns.tw, c.dns.tw...)
Out-of-bailiwick: 4 (anytld.apnic.net, anytld.apnic.net, dns2.f1.com.tw...)
Analysis
Mail Server Role
java.com.tw uses www.java.com.tw as a mail server.
As mail servers, java.com.tw and www.java.com.tw are regularly found together.
IP Addresses
www.java.com.tw resolves to one IP address: 220.228.6.21.
www.4awt.com, www.avoeo.com, talking-room.info and two other host names share IP numbers with www.java.com.tw.