cd21.com - dns.ninja
cd21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 86.135.161.47🇬🇧 BT-UK-AS86.128.0.0/12 BT Public Internet Service | ||||||
| PTR | host86-135-161-47.range86-135.btcentralplus.com | ||||||
| NS | ns0.phase8.net ⭐ | ||||||
| A | 81.88.63.114🇮🇹 REGISTER-AS81.88.63.0/24 Register.IT S.p.A. prefix | ||||||
| PTR | ns0.phase8.net | ||||||
| NS | ns1.phase8.net | ||||||
| A | 85.233.160.68🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited | ||||||
| PTR | ns1.phase8.net | ||||||
| NS | ns2.phase8.net | ||||||
| A | 91.186.2.48🇬🇧 SIMPLYTRANSIT91.186.0.0/19 Simply Transit Ltd | ||||||
| PTR | ns2.phase8.net | ||||||
| MX | fwd0.hosts.co.uk ⭐ | ||||||
| A | 85.233.160.22🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited | ||||||
| PTR | fwd0.hosts.co.uk | ||||||
| MX | fwd1.hosts.co.uk ⭐ | ||||||
| A | 85.233.160.23🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited | ||||||
| PTR | fwd1.hosts.co.uk | ||||||
| MX | fwd2.hosts.co.uk ⭐ | ||||||
| A | 85.233.160.24🇬🇧 ISIONUK85.233.160.0/19 Namesco Limited | ||||||
| PTR | fwd2.hosts.co.uk | ||||||
| SOA | ns0.phase8.netsupport@phase8.net 2019-06-05 #2 | ||||||
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=1786244509 | ||||||
Same first word
Similar names
dc21.com |
c1d2.xyz |
d1c2.com |
12cd.com |
cd12.org |
d21c.com |
c1d2.com |
12cd.us |
cd12.com |
21cd.cn |
21dc.com.cn |
21cd.cc |
21cd.com |
dc12.org |
dc21.us |
c12d.com |
dc21.tv |
DNS History
7 records (7 active, 0 former)
●NSns0.phase8.net2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●NSns1.phase8.net2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●NSns2.phase8.net2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●MXfwd0.hosts.co.uk2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●MXfwd1.hosts.co.uk2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●MXfwd2.hosts.co.uk2015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
●A86.135.161.472015-04-03 → 2026-08-09 · 2 obs
● 2026-08-09 03:23:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cd21.com | ns0.phase8.net, ns1.phase8.net, ns2.phase8.net | - |
✅ Authoritative Response
Server:85.233.160.68
NS records: ns0.phase8.net, ns1.phase8.net, ns2.phase8.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cd21.com (unsigned zone)
⏱️ Timing
Total: 483ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 86.135.161.47 |
| NS | 3 | ns1.phase8.net, ns0.phase8.net... |
| MX | 3 | fwd2.hosts.co.uk (pri: 5), fwd0.hosts.co.uk (pri: 5)... |
| SOA | 1 | ns0.phase8.net support.phase8.net |
Analysis
IP Addresses
cd21.com directs to one IP number, which is 86.135.161.47.
There are other host names — host86-135-161-47.range86-135.btcentralplus.com among them — that share IP numbers with cd21.com.
Name Servers
DNS for cd21.com is handled by three authoritative name servers: ns0.phase8.net, ns1.phase8.net and ns2.phase8.net.
cd21.com has at least partial name server overlap with other domains, such as thaxtedandstanstedbandb.co.uk, igym.co.uk, visitarmagh.co.uk and two others.
ns0.phase8.net, ns1.phase8.net and ns2.phase8.net all have one IP address each — ns0.phase8.net directs to 81.88.63.114, ns1.phase8.net directs to 85.233.160.68 and ns2.phase8.net directs to 91.186.2.48.
Mail Servers
cd21.com has three mail servers: fwd0.hosts.co.uk, fwd1.hosts.co.uk and fwd2.hosts.co.uk.
cd21.com shares at least some of its mail servers with other domains — for example wooow.co.uk, softanyware.info, whitecompany.com and two more.
fwd0.hosts.co.uk, fwd1.hosts.co.uk and fwd2.hosts.co.uk all have one IP address each — fwd0.hosts.co.uk directs to 85.233.160.22, fwd1.hosts.co.uk directs to 85.233.160.23 and fwd2.hosts.co.uk directs to 85.233.160.24.