jointoffice.cn - robtex.com
jointoffice.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.247.90.36🇧🇷 GNET-AS9294156.247.80.0/20 | ||||||
| NS | a1.share-dns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b1.share-dns.net ⚠️ Not in parent delegation | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1748609429 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034663320 | ||||||
Subdomains
Same first word
jointoffice.cn |
DNS History
12 records (5 active, 7 former)
●NSa.share-dns.com2026-02-17 → 2026-04-12 · 3 obs
● 2026-02-17 04:39:36
● 2026-04-12 18:11:02
●NSa1.share-dns.com2026-02-17 → 2026-04-12 · 3 obs
● 2026-02-17 04:39:36
● 2026-04-12 18:11:02
●NSb.share-dns.net2026-02-17 → 2026-04-12 · 3 obs
● 2026-02-17 04:39:36
● 2026-04-12 18:11:02
●NSb1.share-dns.net2026-02-17 → 2026-04-12 · 3 obs
● 2026-02-17 04:39:36
● 2026-04-12 18:11:02
○NSns1.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○NSns2.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○NSns3.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○NSns4.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○NSns5.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○NSns6.myhostadmin.net2015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
○A121.42.80.332015-06-07 → 2017-09-11 · 4 obs
● 2017-09-11 20:19:18
○ 2026-02-17 04:39:36
○ 2026-04-12 18:11:02
●A156.247.90.362026-02-17 → 2026-04-12 · 3 obs
● 2026-02-17 04:39:36
● 2026-04-12 18:11:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| jointoffice.cn | a1.share-dns.com, b1.share-dns.net | - |
✅ Authoritative Response
Server:172.64.53.25
NS records: a1.share-dns.com, b1.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jointoffice.cn (unsigned zone)
⏱️ Timing
Total: 1289ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.247.90.36 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
Analysis
Hierarchy
jointoffice.cn is a parent of m.jointoffice.cn, www.jointoffice.cn and share.jointoffice.cn.
IP Addresses
jointoffice.cn points to a single IP number: 156.247.90.36.
Other host names, for instance www.share.jointoffice.cn, share.jointoffice.cn, www.www.share.jointoffice.cn, read.share.jointoffice.cn and m.jointoffice.cn share IP numbers with jointoffice.cn.
Name Servers
jointoffice.cn is delegated to four name servers: a1.share-dns.com, a.share-dns.com, b1.share-dns.net and b.share-dns.net.
jointoffice.cn at least partially shares name servers with other domains, for instance ptblb.com, iqcqg.com, npxqwj.com, helloyuhu.com and clc7700.com.
These name servers are commonly used together with the name servers a11.share-dns.com, b11.share-dns.net, a10.share-dns.com, b10.share-dns.net, a4.share-dns.com, b4.share-dns.net, a9.share-dns.com, b9.share-dns.net, a2.share-dns.com and b2.share-dns.net.
Host names pointing to 172.64.53.25: a1.share-dns.com and a.share-dns.com.
Host names pointing to 172.64.52.239: b1.share-dns.net and b.share-dns.net.