costuan.com - robtex.com
costuan.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.181.34.215🇺🇸 HKCICL-AS-AP38.181.34.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1714226173 | ||||||
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=1784499687 | ||||||
Same first word
costuan.com |
Similar names
DNS History
13 records (5 active, 8 former)
○NSdns10.hichina.com2019-05-12 → 2019-05-12 · 4 obs
● 2019-05-12 11:11:20
○ 2026-06-14 03:51:52
○ 2026-07-19 22:51:34
○NSdns9.hichina.com2017-06-22 → 2019-05-12 · 5 obs
● 2017-06-22 16:36:46
● 2019-05-12 11:11:20
○ 2026-06-14 03:51:52
○ 2026-07-19 22:51:34
○NSf1g1ns1.dnspod.net2015-07-13 → 2016-04-02 · 4 obs
● 2016-04-02 23:12:02
○ 2016-08-12 17:11:12
○ 2026-07-19 22:51:34
○NSf1g1ns2.dnspod.net2015-07-13 → 2016-04-02 · 4 obs
● 2016-04-02 23:12:02
○ 2016-08-12 17:11:12
○ 2026-07-19 22:51:34
●NSns1.judns.com2026-06-14 → 2026-07-19 · 3 obs
● 2026-06-14 03:51:52
● 2026-07-19 22:51:34
●NSns1.julydns.com2026-06-14 → 2026-07-19 · 3 obs
● 2026-06-14 03:51:52
● 2026-07-19 22:51:34
●NSns2.judns.com2026-06-14 → 2026-07-19 · 3 obs
● 2026-06-14 03:51:52
● 2026-07-19 22:51:34
●NSns2.julydns.com2026-06-14 → 2026-07-19 · 3 obs
● 2026-06-14 03:51:52
● 2026-07-19 22:51:34
○MXmxn.mxhichina.com2017-06-22 → 2019-05-12 · 4 obs
● 2019-05-12 11:11:20
○ 2026-06-14 03:51:52
○ 2026-07-19 22:51:34
○MXmxw.mxhichina.com2017-06-22 → 2019-05-12 · 4 obs
● 2019-05-12 11:11:20
○ 2026-06-14 03:51:52
○ 2026-07-19 22:51:34
○A106.15.226.652019-05-12 → 2019-05-12 · 4 obs
● 2019-05-12 11:11:20
○ 2026-06-14 03:51:52
○ 2026-07-19 22:51:34
○A203.171.227.352015-07-13 → 2016-04-02 · 4 obs
● 2016-04-02 23:12:02
○ 2016-08-12 17:11:12
○ 2026-07-19 22:51:34
●A38.181.34.2152026-06-14 → 2026-07-19 · 3 obs
● 2026-06-14 03:51:52
● 2026-07-19 22:51:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net... | - |
| costuan.com | ns1.judns.com, ns2.judns.com | 2 records |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for costuan.com (unsigned zone)
⏱️ Timing
Total: 416ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.181.34.215 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)
Analysis
IP Addresses
costuan.com directs to one IP number, which is 38.181.34.215.
Name Servers
The domain costuan.com is delegated to these four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
At least some of costuan.com's name servers are shared with other domains, for example jinjtz.com, zhongtoujunhe.com, boringairdrop.com and two more.
These name servers tend to be deployed in combination with the name servers ns1.onclouddns.com and ns2.onclouddns.com.
Each of ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com has a single IP address — ns1.judns.com and ns2.judns.com direct to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com direct to 162.159.48.223.
These two host names — ns1.judns.com and ns2.judns.com — each point to 162.159.27.251 IP addresses.
These two host names — ns1.julydns.com and ns2.julydns.com — each point to 162.159.48.223 IP addresses.