combine21.com - robtex.com
combine21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 61.220.20.91🇹🇼 HiNet61.220.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | combine21.com | ||||||
| NS | ens1.net-chinese.com.tw ⭐ | ||||||
| A | 104.199.131.53🇹🇼 Google104.199.128.0/20 | ||||||
| PTR | 53.131.199.104.bc.googleusercontent.com | ||||||
| NS | ens2.net-chinese.com.tw | ||||||
| A | 104.199.229.182🇹🇼 Google104.199.224.0/20 | ||||||
| PTR | 182.229.199.104.bc.googleusercontent.com | ||||||
| MX | mx.combine21.com ⭐ | ||||||
| A | 61.220.20.91🇹🇼 HiNet61.220.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | combine21.com | ||||||
| MX | mail.combine21.com(20) | ||||||
| A | 61.220.20.91🇹🇼 HiNet61.220.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | combine21.com | ||||||
| TXT | v=spf1 mx a:mail.combine21.com -all | ||||||
| SOA | ens1.net-chinese.com.twabuse@digiage.com.tw serial=1184147500 | ||||||
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=1776108237 | ||||||
PTR for
Subdomains
Same first word
combine21.com |
DNS History
6 records (5 active, 1 former)
●NSens1.net-chinese.com.tw2015-06-04 → 2026-04-13 · 2 obs
● 2026-04-13 19:48:40
●NSens2.net-chinese.com.tw2015-06-04 → 2026-04-13 · 2 obs
● 2026-04-13 19:48:40
●MXmail.combine21.com2015-06-04 → 2026-04-13 · 2 obs
● 2026-04-13 19:48:40
●MXmx.combine21.com2026-04-13 → 2026-04-13 · 3 obs
● 2026-04-13 19:48:38
● 2026-04-13 19:48:40
○A175.98.113.502015-06-04 → 2019-03-22 · 4 obs
● 2019-03-22 06:11:06
○ 2026-04-13 19:48:38
○ 2026-04-13 19:48:40
●A61.220.20.912026-04-13 → 2026-04-13 · 3 obs
● 2026-04-13 19:48:38
● 2026-04-13 19:48:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net... | - |
| combine21.com | ens1.net-chinese.com.tw, ens2.net-chinese.com.tw | - |
✅ Authoritative Response
Server:104.199.229.182
NS records: ens1.net-chinese.com.tw, ens2.net-chinese.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for combine21.com (unsigned zone)
⏱️ Timing
Total: 907ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 61.220.20.91 |
| NS | 2 | ens1.net-chinese.com.tw, ens2.net-chinese.com.tw |
| MX | 2 | mail.combine21.com (pri: 20), mx.combine21.com (pri: 10) |
| TXT | 1 | v=spf1 mx a:mail.combine21.com -all |
| SOA | 1 | ens1.net-chinese.com.tw abuse.digiage.co |
Analysis
Hierarchy
combine21.com is a parent of mx.combine21.com and mail.combine21.com.
IP Addresses
combine21.com points to a single IP number: 61.220.20.91.
Other host names such as mx.combine21.com and mail.combine21.com share IP numbers with combine21.com.
Name Servers
Delegation for combine21.com rests with two name servers, ens1.net-chinese.com.tw and ens2.net-chinese.com.tw.
combine21.com shares the same name server setup as other domains, including net-chinese.at, bonitaus.com, agavio.com, sml-tj.com and tokyodrug.com.
Host names with one IP number: ens1.net-chinese.com.tw points to 104.199.131.53; ens2.net-chinese.com.tw points to 104.199.229.182.
Mail Servers
combine21.com is handled by two mail servers: mail.combine21.com and mx.combine21.com.
Host names sharing a single IP:
mail.combine21.com points to 61.220.20.91
mx.combine21.com points to 61.220.20.91
Host names that point to 61.220.20.91: mail.combine21.com and mx.combine21.com