sfb.com.tw - robtex.com
sfb.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ta29.potia.com ⚠️ Not in zone NS records | ||||||
| A | 61.221.12.11🇹🇼 HiNet61.221.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | bear.potia.net | ||||||
| NS | ta30.potia.com ⚠️ Not in zone NS records | ||||||
| A | 61.221.12.12🇹🇼 HiNet61.221.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | ns12.potia.com | ||||||
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=2006380920 | ||||||
Previously NS for
sfb.com.tw |
Previously MX for
sfb.com.tw |
Same first word
Similar names
DNS History
9 records (2 active, 7 former)
○NSdns1.lifeshow.com.tw2015-07-14 → 2016-04-04 · 4 obs
● 2016-04-04 13:58:30
○ 2016-06-07 13:51:52
○ 2026-07-11 14:37:58
○NSdns2.lifeshow.com.tw2015-07-14 → 2016-04-04 · 4 obs
● 2016-04-04 13:58:30
○ 2016-06-07 13:51:52
○ 2026-07-11 14:37:58
○NSsfb.com.tw2015-07-14 → 2016-04-04 · 4 obs
● 2016-04-04 13:58:30
○ 2016-06-07 13:51:52
○ 2026-07-11 14:37:58
●NSta29.potia.com2016-06-07 → 2026-07-11 · 3 obs
● 2016-06-07 13:51:52
● 2026-07-11 14:37:58
●NSta30.potia.com2016-06-07 → 2026-07-11 · 3 obs
● 2016-06-07 13:51:52
● 2026-07-11 14:37:58
○MXsfb.com.tw2015-07-14 → 2020-02-12 · 4 obs
● 2020-02-12 09:10:44
○ 2026-07-07 16:04:08
○ 2026-07-11 14:37:58
○A139.175.160.2382015-07-14 → 2016-04-04 · 4 obs
● 2016-04-04 13:58:30
○ 2016-06-07 13:51:52
○ 2026-07-11 14:37:58
○A210.242.143.302016-06-07 → 2016-06-07 · 4 obs
● 2016-06-07 13:51:52
○ 2017-01-26 20:51:58
○ 2026-07-11 14:37:58
○A61.221.12.122017-01-26 → 2020-02-12 · 5 obs
● 2017-01-26 20:51:58
● 2020-02-12 09:10:44
○ 2026-07-07 16:04:08
○ 2026-07-11 14:37:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | b.dns.tw, a.dns.tw, d.dns.tw, h.dns.tw... | - |
| com.tw | b.twnic.net.tw, d.twnic.net.tw, anytld.apnic.net, h.twnic.net.tw... | 17 records |
| sfb.com.tw | ta30.potia.com, ta29.potia.com | - |
✅ Authoritative Response
Server:61.221.12.11
NS records: ta30.potia.com, ta29.potia.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfb.com.tw (unsigned zone)
⏱️ Timing
Total: 2925ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 17
Out-of-bailiwick: 17 (h.twnic.net.tw, g.twnic.net.tw, f.twnic.net.tw...)
Analysis
Name Servers
DNS delegation for sfb.com.tw points to two name servers: ta29.potia.com and ta30.potia.com.
sfb.com.tw uses the same name servers as other domains, for example 108.tw and ppeeooppllee.com.
At least some of sfb.com.tw's name servers are shared with other domains, for example powtea.com, lucys.com.tw, kunpec.com.tw and two more.
These name servers tend to be deployed in combination with the name servers ns1.potia.com and ns2.potia.com.
Each of ta29.potia.com and ta30.potia.com has one IP address: ta29.potia.com uses 61.221.12.11 and ta30.potia.com uses 61.221.12.12.