u583.cn - robtex.com
u583.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=2034583575 | ||||||
Same first word
u583.cn |
Similar names
DNS History
7 records (4 active, 3 former)
○NSf1g1ns1.dnspod.net2016-09-15 → 2016-09-15 · 3 obs
○ 2017-05-27 22:48:06
○ 2026-03-25 01:26:52
○NSf1g1ns2.dnspod.net2016-09-15 → 2016-09-15 · 3 obs
○ 2017-05-27 22:48:06
○ 2026-03-25 01:26:52
●NSns1.exp.4cun.com2026-03-15 → 2026-03-25 · 3 obs
● 2026-03-15 12:53:58
● 2026-03-25 01:26:52
●NSns2.exp.4cun.com2026-03-15 → 2026-03-25 · 3 obs
● 2026-03-15 12:53:58
● 2026-03-25 01:26:52
●MXmail.happyisp.com2026-03-15 → 2026-03-25 · 2 obs
● 2026-03-25 01:26:52
○A104.237.68.2532016-09-15 → 2016-09-15 · 3 obs
○ 2017-05-27 22:48:06
○ 2026-03-25 01:26:52
●A127.0.0.12026-03-15 → 2026-03-25 · 3 obs
● 2026-03-15 12:53:58
● 2026-03-25 01:26:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, e.dns.cn, a.dns.cn, b.dns.cn... | - |
| u583.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
⚠️ Insecure (no DNSSEC)
No DS record for u583.cn (unsigned zone)
⏱️ Timing
Total: 4830ms | 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
u583.cn points to IP number 127.0.0.1.
For instance, other host names mail.infidel.fr, wald.host.sk, 44.110.static.quadranet.com, 44.98.227.static.quadranet.com and baulasten.com share IP numbers with u583.cn.
Name Servers
u583.cn is delegated to two name servers: ns1.exp.4cun.com and ns2.exp.4cun.com.
u583.cn uses the same name server setup as other domains such as eostatic.com, lmxv.cn, ekqkqf.cn, campingessentials101.com and whgbbs.com.
u583.cn shares name servers with other domains at least partially, for example pftxsc.com, 11xuc9.com, hefeiip.cn, liangyingok.cn and wynncash.com.
These name servers are commonly used with ns3.exp.4cun.com, ns4.exp.4cun.com and ns5.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
u583.cn is handled by a single mail server, mail.happyisp.com.
u583.cn shares the same mail server setup as other domains, for instance chanshen.cn, izsj.com, tiejian.cn, yourprepaidcardbalance.com and qjad.com.
mail.happyisp.com resolves to two IPs: 5.161.49.68 and 137.184.158.105.