sinacom.cn - robtex.com
sinacom.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 127.0.0.1 | ||||||
| NS | dns1.dnbiz.com ⚠️ Not in zone NS records | ||||||
| A | 60.190.243.163🇨🇳 CT-HangZhou-IDC60.190.243.0/24 Chinanet-HangZhou-IDC | ||||||
| NS | dns2.dnbiz.com ⚠️ Not in zone NS records | ||||||
| A | 60.190.243.163🇨🇳 CT-HangZhou-IDC60.190.243.0/24 Chinanet-HangZhou-IDC | ||||||
| MX | mail.happyisp.com ⭐ | ||||||
| A | 5.161.49.68🇺🇸 HETZNER-CLOUD2-AS5.161.49.0/24 | ||||||
| PTR | mail.happyisp.com | ||||||
| A | 137.184.158.105🇺🇸 DIGITALOCEAN137.184.144.0/20 DigitalOcean | ||||||
| PTR | mail.happyisp.com | ||||||
| TXT | v=spf1 ip6:fd0d:d741:e183::/48 -all | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034546407 | ||||||
Previously NS for
sinacom.cn |
Subdomains
www.sinacom.cn |
Same first word
Similar names
DNS History
13 records (4 active, 9 former)
●NSdns1.dnbiz.com2026-02-16 → 2026-03-20 · 3 obs
● 2026-02-16 08:03:28
● 2026-03-20 20:52:20
●NSdns2.dnbiz.com2026-02-16 → 2026-03-20 · 3 obs
● 2026-02-16 08:03:28
● 2026-03-20 20:52:20
○NSns1.dnbiz.com2020-01-21 → 2026-02-16 · 4 obs
● 2026-02-16 08:03:28
○ 2026-02-21 08:21:14
○ 2026-03-20 20:52:20
○NSns2.dnbiz.com2020-01-21 → 2026-02-16 · 4 obs
● 2026-02-16 08:03:28
○ 2026-02-21 08:21:14
○ 2026-03-20 20:52:20
○NSsinacom.cn2020-01-21 → 2026-02-16 · 4 obs
● 2026-02-16 08:03:28
○ 2026-02-21 08:21:14
○ 2026-03-20 20:52:20
●MXmail.happyisp.com2026-02-16 → 2026-03-20 · 3 obs
● 2026-02-16 08:03:28
● 2026-03-20 20:52:20
○MXmail.skrimple.com2015-07-10 → 2026-02-16 · 4 obs
● 2026-02-16 08:03:28
○ 2026-02-21 08:21:14
○ 2026-03-20 20:52:20
○A103.51.144.812017-03-18 → 2026-02-16 · 5 obs
● 2017-03-18 20:03:16
● 2026-02-16 08:03:28
○ 2026-02-21 08:21:14
○ 2026-03-20 20:52:20
●A127.0.0.12026-02-21 → 2026-03-20 · 3 obs
● 2026-02-21 19:28:22
● 2026-03-20 20:52:20
○A167.88.180.1212026-02-16 → 2026-02-21 · 5 obs
● 2026-02-16 08:03:28
● 2026-02-21 08:21:14
○ 2026-02-21 19:28:22
○ 2026-03-20 20:52:20
○A198.12.15.2442015-07-10 → 2015-07-10 · 3 obs
○ 2015-10-03 11:03:12
○ 2026-03-20 20:52:20
○A23.27.192.1142015-10-03 → 2015-10-03 · 4 obs
● 2015-10-03 11:03:12
○ 2015-12-15 08:54:44
○ 2026-03-20 20:52:20
○A65.19.157.2352015-12-15 → 2016-03-28 · 5 obs
● 2015-12-15 08:54:44
● 2016-03-28 13:17:54
○ 2017-03-18 20:03:16
○ 2026-03-20 20:52:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| sinacom.cn | dns1.dnbiz.com, dns2.dnbiz.com | - |
✅ Authoritative Response
Server: 60.190.243.163
NS records: dns1.dnbiz.com, dns2.dnbiz.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sinacom.cn (unsigned zone)
⏱️ Timing
Total: 1642ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 127.0.0.1 |
| MX | 1 | mail.happyisp.com (pri: 1) |
| TXT | 1 | v=spf1 ip6:fd0d:d741:e183::/48 -all |
Analysis
Hierarchy
The parent of www.sinacom.cn is sinacom.cn.
IP Addresses
sinacom.cn points to a single IP: 127.0.0.1.
Other host names, for instance 1.lapianyi.sinaapp.com, 114.44.static.quadranet.com, 94.133.20.static.quadranet.com, 67.132.static.quadranet.com and undefined.www.eu share IP numbers with sinacom.cn.
Name Servers
Two name servers dns1.dnbiz.com and dns2.dnbiz.com handle delegation for sinacom.cn.
sinacom.cn uses the same name server setup as other domains, for example fko.cn, 888it.com, dap.cn, verygame.cn and ssht.cn.
sinacom.cn partially shares name servers with other domains; examples include hengyu.com, qiuyan.com, baibaohe.com, fztv.com and hongkai.com.
These name servers commonly accompany dns3.dnbiz.com, dns4.dnbiz.com, dns5.dnbiz.com and dns6.dnbiz.com.
Host names with one IP number
Host name dns1.dnbiz.com points to 60.190.243.163
Host name dns2.dnbiz.com points to 60.190.243.163
Host names that point to 60.190.243.163: dns1.dnbiz.com and dns2.dnbiz.com
Mail Servers
sinacom.cn is handled by a single mail server, mail.happyisp.com.
sinacom.cn has the same mail server setup as other domains, including yavuz.eu, yzwh.cn, fenli.com.cn, alziad.com and 6057.cn.
Host mail.happyisp.com resolves to two IPs: 5.161.49.68 and 137.184.158.105.