simuworks.cn - robtex.com
simuworks.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 127.0.0.1 | ||||||
| NS | ns1.exp.4cun.com ⚠️ Not in zone NS records | ||||||
| A | 60.190.243.160🇨🇳 CT-HangZhou-IDC60.190.243.0/24 Chinanet-HangZhou-IDC | ||||||
| NS | ns2.exp.4cun.com ⚠️ Not in zone NS records | ||||||
| A | 60.190.243.160🇨🇳 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 | 🔒 Signed (DS record present) | ||||||
| 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=2034586674 | ||||||
rank #17813 in the tld
Same first word
simuworks.com |
simuworks.cn |
Similar names
DNS History
8 records (4 active, 4 former)
●NSns1.exp.4cun.com2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 19:45:20
● 2026-03-25 19:45:22
○NSns1.judns.com2026-02-18 → 2026-02-18 · 3 obs
○ 2026-03-25 19:45:20
○ 2026-03-25 19:45:22
○NSns1.julydns.com2026-02-18 → 2026-02-18 · 3 obs
○ 2026-03-25 19:45:20
○ 2026-03-25 19:45:22
●NSns2.exp.4cun.com2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 19:45:20
● 2026-03-25 19:45:22
○NSns2.judns.com2026-02-18 → 2026-02-18 · 3 obs
○ 2026-03-25 19:45:20
○ 2026-03-25 19:45:22
○NSns2.julydns.com2026-02-18 → 2026-02-18 · 3 obs
○ 2026-03-25 19:45:20
○ 2026-03-25 19:45:22
●MXmail.happyisp.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 19:45:22
●A127.0.0.12026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 19:45:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| simuworks.cn | ns1.exp.4cun.com, ns2.exp.4cun.com | - |
✅ Authoritative Response
Server:60.190.243.160
NS records: ns1.exp.4cun.com, ns2.exp.4cun.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 4114ms | 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
IP Addresses
simuworks.cn points to a single IP address: 127.0.0.1.
Other host names such as updates-denied.kolo.net, 69.12.91.58.static.quadranet.com, 161.129.66.231.static.quadranet.com, wiki.wikaba.com and 13.4.2.85.dynamic.wline.res.cust.swisscom.ch share IPs with simuworks.cn.
Name Servers
Two name servers ns1.exp.4cun.com and ns2.exp.4cun.com handle the delegation for simuworks.cn.
simuworks.cn shares the same name server setup as other domains, for example xhdbzsboa.com, ruosite.com.cn, shindoctor.com, icefactory.cn and dgzhuoyi88.com.
simuworks.cn at least partially shares name servers with other domains, for example ww555.cn, vo4f.cn, ycxtt.com, aikingzer.cn and u8858.cn.
these name servers commonly pair with ns3.exp.4cun.com, ns4.exp.4cun.com, ns5.exp.4cun.com and ns6.exp.4cun.com.
Host names with a single IP:
ns1.exp.4cun.com points to 60.190.243.160.
ns2.exp.4cun.com points to 60.190.243.160.
Host names pointing to 60.190.243.160: ns1.exp.4cun.com and ns2.exp.4cun.com.
Mail Servers
The mail.happyisp.com mail server handles simuworks.cn.
simuworks.cn shares the same mail server setup as other domains, including burdonhighschoolraggil.com, xlgc.com.cn, kubai.cn, chengfen.cn and sxtt.cn.
mail.happyisp.com points to two IP numbers: 5.161.49.68 and 137.184.158.105.