contract21.com - robtex.com
contract21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 168.76.103.142🇿🇦 ASLINE-AS-AP168.76.96.0/20 Proxy-registered route object | ||||||
| NS | ns1.julydns.com ⭐ | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| NS | ns2.julydns.com | ||||||
| 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=1752319494 | ||||||
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=1774680622 | ||||||
Subdomains
www.contract21.com |
Same first word
contract21.com |
DNS History
9 records (3 active, 6 former)
○NSdns1.ibercom.com2015-05-20 → 2017-04-20 · 4 obs
● 2017-04-20 17:48:22
○ 2026-02-24 06:55:30
○ 2026-03-28 07:02:14
○NSdns2.ibercom.com2015-05-20 → 2017-04-20 · 4 obs
● 2017-04-20 17:48:22
○ 2026-02-24 06:55:30
○ 2026-03-28 07:02:14
●NSns1.julydns.com2026-02-24 → 2026-03-28 · 3 obs
● 2026-02-24 06:55:30
● 2026-03-28 07:02:14
●NSns2.julydns.com2026-02-24 → 2026-03-28 · 3 obs
● 2026-02-24 06:55:30
● 2026-03-28 07:02:14
○MXsmtp.contract21.com2015-05-20 → 2017-04-20 · 4 obs
● 2017-04-20 17:48:22
○ 2026-02-24 06:55:30
○ 2026-03-28 07:02:14
●A168.76.103.1422026-02-24 → 2026-03-28 · 3 obs
● 2026-02-24 06:55:30
● 2026-03-28 07:02:14
○A212.166.74.162015-05-20 → 2015-10-29 · 4 obs
● 2015-10-29 05:53:32
○ 2016-01-26 21:25:06
○ 2026-03-28 07:02:14
○A212.166.74.2402017-04-20 → 2017-04-20 · 4 obs
● 2017-04-20 17:48:22
○ 2026-02-24 06:55:30
○ 2026-03-28 07:02:14
○A213.195.69.442016-01-26 → 2016-09-29 · 5 obs
● 2016-01-26 21:25:06
● 2016-09-29 07:36:56
○ 2017-04-20 17:48:22
○ 2026-03-28 07:02:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net... | - |
| contract21.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server:47.97.51.45
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for contract21.com (unsigned zone)
⏱️ Timing
Total: 510ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 168.76.103.142 |
| 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.julydns.com, ns2.julydns.com)
Analysis
Hierarchy
The parent of www.contract21.com is contract21.com.
IP Addresses
contract21.com points to a single IP: 168.76.103.142.
Other host names such as www.contract21.com and 51gongjijin.com share IP numbers with contract21.com.
Name Servers
Two name servers ns1.julydns.com and ns2.julydns.com handle delegation for contract21.com.
contract21.com uses the same name server setup as other domains, for example ldqxwxpay.com, haotiandp.com, sltjzb.com, nhqidong.com and xindaocm.com.
contract21.com partially shares name servers with other domains; examples include skylinecollection.cn, caactt.com, hsgkdwyy.com, zj-furun.com and gmkj2017.com.
These name servers are often used with the name servers ns1.judns.com and ns2.judns.com.
Host names with one IP number: The host name ns1.julydns.com points to 47.97.51.45 and the host name ns2.julydns.com points to 162.159.48.223.