ref53.com - robtex.com
ref53.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.228.6.59🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| NS | dns1.f1.com.tw ⭐ ⚠️ Not in parent delegation | ||||||
| A | 218.32.213.234🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | sp234.f1.com.tw | ||||||
| NS | dns2.f1.com.tw ⚠️ Not in parent delegation | ||||||
| A | 220.228.6.17🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| NS | ns1.icstock.com.tw ⚠️ Not in zone NS records | ||||||
| A | 218.32.213.228🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | sp228.f1.com.tw | ||||||
| NS | ns2.icstock.com.tw ⚠️ Not in zone NS records | ||||||
| A | 218.32.210.72🇹🇼 NCIC-TW218.32.210.0/24 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | sp72.f1.com.tw | ||||||
| NS | sp234.f1.com.tw ⚠️ Not in zone NS records | ||||||
| A | 218.32.213.234🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| PTR | sp234.f1.com.tw | ||||||
| MX | ref53.com ⭐ | ||||||
| A | 220.228.6.59🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| MX | www.ref53.com(14) | ||||||
| A | 220.228.6.59🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd. | ||||||
| SOA | dns1.f1.com.twohgo@ms23.hinet.net 2000-11-01 #8 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1785165467 | ||||||
MX for
ref53.com |
Subdomains
www.ref53.com |
Same first word
ref53.com |
DNS History
9 records (8 active, 1 former)
●NSns1.icstock.com.tw2026-04-01 → 2026-07-27 · 3 obs
● 2026-04-01 06:22:36
● 2026-07-27 15:22:52
●NSns2.icstock.com.tw2026-04-01 → 2026-07-27 · 3 obs
● 2026-04-01 06:22:36
● 2026-07-27 15:22:52
●NSsp234.f1.com.tw2026-04-01 → 2026-07-27 · 3 obs
● 2026-04-01 06:22:36
● 2026-07-27 15:22:52
●MXref53.com2019-12-15 → 2026-07-27 · 2 obs
● 2026-07-27 15:22:52
●MXwww.ref53.com2019-12-15 → 2026-07-27 · 2 obs
● 2026-07-27 15:22:52
●A220.228.6.592026-04-01 → 2026-07-27 · 3 obs
● 2026-04-01 06:22:36
● 2026-07-27 15:22:52
○A220.228.6.62019-12-15 → 2019-12-15 · 3 obs
○ 2026-04-01 06:22:36
○ 2026-07-27 15:22:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net... | - |
| ref53.com | ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw | - |
✅ Authoritative Response
Server:218.32.213.234
NS records: ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ref53.com (unsigned zone)
⏱️ Timing
Total: 1358ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 220.228.6.59 |
| NS | 2 | dns1.f1.com.tw, dns2.f1.com.tw |
| MX | 2 | ref53.com (pri: 10), www.ref53.com (pri: 14) |
| SOA | 1 | dns1.f1.com.tw ohgo.ms23.hinet.net |
Analysis
Hierarchy
ref53.com is a parent domain of www.ref53.com.
Mail Server Role
ref53.com acts as its own mail server.
www.ref53.com is a mail server commonly deployed alongside ref53.com.
IP Addresses
ref53.com points to a single IP number: 220.228.6.59.
Additional host names — www.us35s.com, 17lo.tv, www.love173.com and two others — share IP numbers with ref53.com.
Name Servers
Delegation for ref53.com is to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw and two others.
ref53.com shares at least some of its name servers with other domains, including channel555.com, j756.info, 080go.com and two others.
These name servers are frequently paired with the name servers ns1.icstock.com.tw, ns2.icstock.com.tw, ns1.oknet.tw and two others.
Host names pointing to a single IP address:
The hostname dns1.f1.com.tw resolves to 218.32.213.234.
The hostname dns2.f1.com.tw resolves to 220.228.6.17.
The hostname sp234.f1.com.tw resolves to 218.32.213.234.
The hostname ns1.icstock.com.tw resolves to 218.32.213.228.
The hostname ns2.icstock.com.tw resolves to 218.32.210.72.
dns1.f1.com.tw along with sp234.f1.com.tw each resolve to 218.32.213.234 IP addresses.
Mail Servers
ref53.com relies on two mail servers for delivery — ref53.com and www.ref53.com.
ref53.com directs to 220.228.6.59, as does www.ref53.com — both hostnames resolve to that one IP address.
ref53.com along with www.ref53.com each resolve to 220.228.6.59 IP addresses.