sdstu.com - robtex.com
sdstu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.253.122.50🇿🇦 HKIDC-AS-AP156.253.64.0/18 AresIDC Limited | ||||||
| NS | dm1.longmingdns.com ⭐ | ||||||
| A | 218.98.111.163🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | dm2.longmingdns.com | ||||||
| A | 183.253.57.197🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.56🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1775827538 | ||||||
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=1784031657 | ||||||
Same first word
Similar names
DNS History
12 records (3 active, 9 former)
●NSdm1.longmingdns.com2026-06-25 → 2026-07-14 · 3 obs
● 2026-06-25 05:21:48
● 2026-07-14 12:27:02
●NSdm2.longmingdns.com2026-06-25 → 2026-07-14 · 3 obs
● 2026-06-25 05:21:48
● 2026-07-14 12:27:02
○NSns1.fabulous.com2015-06-16 → 2017-04-19 · 4 obs
● 2017-04-19 03:39:20
○ 2026-06-25 05:21:48
○ 2026-07-14 12:27:02
○NSns2.fabulous.com2015-06-16 → 2017-04-19 · 4 obs
● 2017-04-19 03:39:20
○ 2026-06-25 05:21:48
○ 2026-07-14 12:27:02
○MXmail.b-io.co2015-06-16 → 2017-04-19 · 4 obs
● 2017-04-19 03:39:20
○ 2026-06-25 05:21:48
○ 2026-07-14 12:27:02
●A156.253.122.502026-06-25 → 2026-07-14 · 3 obs
● 2026-06-25 05:21:48
● 2026-07-14 12:27:02
○A208.48.81.1332015-06-16 → 2016-01-18 · 4 obs
● 2016-01-18 06:34:02
○ 2016-04-12 09:35:56
○ 2026-07-14 12:27:02
○A208.48.81.1342015-06-16 → 2016-01-18 · 4 obs
● 2016-01-18 06:34:02
○ 2016-04-12 09:35:56
○ 2026-07-14 12:27:02
○A208.48.81.1792015-10-24 → 2015-10-24 · 4 obs
● 2015-10-24 20:52:38
○ 2016-01-18 06:34:02
○ 2026-07-14 12:27:02
○A64.15.205.1002015-06-16 → 2016-01-18 · 4 obs
● 2016-01-18 06:34:02
○ 2016-04-12 09:35:56
○ 2026-07-14 12:27:02
○A64.15.205.1012015-06-16 → 2016-01-18 · 4 obs
● 2016-01-18 06:34:02
○ 2016-04-12 09:35:56
○ 2026-07-14 12:27:02
○A98.124.245.242016-04-12 → 2017-04-19 · 5 obs
● 2016-04-12 09:35:56
● 2017-04-19 03:39:20
○ 2026-06-25 05:21:48
○ 2026-07-14 12:27:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| sdstu.com | dm2.longmingdns.com, dm1.longmingdns.com | 5 records |
✅ Authoritative Response
Server:1.193.216.206
NS records: dm2.longmingdns.com, dm1.longmingdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sdstu.com (unsigned zone)
⏱️ Timing
Total: 1521ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.253.122.50 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (dm2.longmingdns.com, dm2.longmingdns.com, dm2.longmingdns.com...)
Analysis
IP Addresses
sdstu.com has exactly one IP address — 156.253.122.50.
Name Servers
sdstu.com is delegated to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.
The name server configuration of sdstu.com is shared with other domains, for instance uufa.cn, dy-steel.com.cn, softmacro.cn and two others.
Host names pointing to two IP addresses:
dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
Host names resolving to a single IP address:
dm1.longmingdns.com points to 218.98.111.163.