21cuc.org - robtex.com
21cuc.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.242.140.107🇺🇸 POWERLINE-HK156.242.128.0/19 Proxy-registered route object | ||||||
| NS | a.share-dns.com ⭐ | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net | ||||||
| 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=1767429072 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1774609685 | ||||||
Same first word
21cuc.org |
Similar names
DNS History
9 records (3 active, 6 former)
●NSa.share-dns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 11:42:30
●NSb.share-dns.net2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 11:42:30
○NSf1g1ns1.dnspod.net2015-12-03 → 2016-06-30 · 4 obs
● 2016-06-30 18:56:10
○ 2017-02-14 16:06:48
○ 2026-03-27 11:42:30
○NSf1g1ns2.dnspod.net2015-12-03 → 2016-06-30 · 4 obs
● 2016-06-30 18:56:10
○ 2017-02-14 16:06:48
○ 2026-03-27 11:42:30
○NSjuming.dnsdun.com2020-02-15 → 2020-02-15 · 3 obs
● 2020-02-15 00:19:08
○ 2026-03-27 11:42:30
○NSjuming.dnsdun.net2020-02-15 → 2020-02-15 · 3 obs
● 2020-02-15 00:19:08
○ 2026-03-27 11:42:30
●A156.242.140.1072026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 11:42:30
○A222.186.58.2502016-03-03 → 2016-06-30 · 4 obs
● 2016-06-30 18:56:10
○ 2017-02-14 16:06:48
○ 2026-03-27 11:42:30
○A45.203.103.1172020-02-15 → 2020-02-15 · 3 obs
● 2020-02-15 00:19:08
○ 2026-03-27 11:42:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| 21cuc.org | a.share-dns.com, b.share-dns.net | - |
✅ Authoritative Response
Server:172.64.52.239
NS records: a.share-dns.com, b.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21cuc.org (unsigned zone)
⏱️ Timing
Total: 324ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.242.140.107 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
Analysis
IP Addresses
21cuc.org points to IP number: 156.242.140.107.
Name Servers
21cuc.org is delegated to two name servers: a.share-dns.com and b.share-dns.net.
21cuc.org shares the same name server setup as shidaowuliu.com, linju001.com, 930228.com, joco-construction.com and scbsl.com.
21cuc.org at least partially shares name servers with other domains, for instance motorcyclegearexpress.com, shjho.com, hobbycredit.com, med-ke.com and sena10g.cn.
These name servers are commonly used alongside a1.share-dns.com, b1.share-dns.net, a10.share-dns.com, b10.share-dns.net, a7.share-dns.com, b7.share-dns.net, a9.share-dns.com, b9.share-dns.net, a12.share-dns.com and b12.share-dns.net.
Host names with a single IP:
a.share-dns.com points to 172.64.53.25.
b.share-dns.net points to 172.64.52.239.