code-21.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`code-21.com`

DNSSEC	⚠️ Not signed
NS	`ns.rackspace.com` ⭐
		A	69.20.95.4^{🇺🇸 RACKSPACE-DFW69.20.95.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218}
			PTR	`ns.rackspace.com`
NS	`dns1.stabletransit.com`
		A	69.20.95.4^{🇺🇸 RACKSPACE-DFW69.20.95.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218}
			PTR	`ns.rackspace.com`
NS	`dns2.stabletransit.com`
		A	65.61.188.4^{🇺🇸 RACKSPACE-LON65.61.188.0/24 Rackspace, 5000 Walzem Road, San Antonio, TX 78218}
			PTR	`ns2.rackspace.com`
MX	`code21-com01b.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc31::^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy2pr01cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:cc31::1^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy8pr01cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc31::3^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy2pr01cu00503.inbound.protection.outlook.com`
		A	2a01:111:f403:cc33::^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-meupr01cu00200.inbound.protection.outlook.com`
		A	52.101.149.0^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy2pr01cu00300.inbound.protection.outlook.com`
		A	52.101.149.1^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy8pr01cu00101.inbound.protection.outlook.com`
		A	52.101.149.9^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy2pr01cu00501.inbound.protection.outlook.com`
		A	52.101.151.0^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-meupr01cu00200.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms64350433`
SOA	`ns.rackspace.com`geoffreyj@code21.com.au serial=1588328022

`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.net`nstld@verisign-grs.com serial=1787316804

Same first word

code-21.com

Similar names

code-12.com

deco-21.de

Previous names

Next names

DNS History

9 records (4 active, 5 former)

●NSdns1.stabletransit.com2015-07-05 → 2026-08-21 · 2 obs

● 2015-07-05 11:44:12
● 2026-08-21 13:12:52

●NSdns2.stabletransit.com2015-07-05 → 2026-08-21 · 2 obs

● 2015-07-05 11:44:12
● 2026-08-21 13:12:52

●NSns.rackspace.com2015-07-05 → 2026-08-21 · 2 obs

● 2015-07-05 11:44:12
● 2026-08-21 13:12:52

○MXalt1.aspmx.l.google.com2015-07-05 → 2015-11-11 · 4 obs

● 2015-07-05 11:44:12
● 2015-11-11 12:24:54
○ 2016-02-09 06:50:00
○ 2026-08-21 13:12:52

○MXalt2.aspmx.l.google.com2015-07-05 → 2015-11-11 · 4 obs

● 2015-07-05 11:44:12
● 2015-11-11 12:24:54
○ 2016-02-09 06:50:00
○ 2026-08-21 13:12:52

○MXaspmx.l.google.com2015-07-05 → 2015-11-11 · 4 obs

● 2015-07-05 11:44:12
● 2015-11-11 12:24:54
○ 2016-02-09 06:50:00
○ 2026-08-21 13:12:52

○MXaspmx2.googlemail.com2015-07-05 → 2015-11-11 · 4 obs

● 2015-07-05 11:44:12
● 2015-11-11 12:24:54
○ 2016-02-09 06:50:00
○ 2026-08-21 13:12:52

○MXaspmx3.googlemail.com2015-07-05 → 2015-11-11 · 4 obs

● 2015-07-05 11:44:12
● 2015-11-11 12:24:54
○ 2016-02-09 06:50:00
○ 2026-08-21 13:12:52

●MXcode21-com01b.mail.protection.outlook.com2016-02-09 → 2026-08-21 · 3 obs

○ 2015-11-11 12:24:54
● 2016-02-09 06:50:00
● 2026-08-21 13:12:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
code-21.com	dns1.stabletransit.com, dns2.stabletransit.com	2 records

✅ Authoritative Response

Server:65.61.188.4

NS records: dns1.stabletransit.com, dns2.stabletransit.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for code-21.com (unsigned zone)

⏱️ Timing

Total: 351ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns1.stabletransit.com, dns2.stabletransit.com`
MX	1	`code21-com01b.mail.protection.outlook.co`
TXT	2	`MS=ms64350433, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns.rackspace.com geoffreyj.code21.com.au`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.stabletransit.com, dns2.stabletransit.com)

Analysis

Name Servers

code-21.com has three name servers — ns.rackspace.com, dns1.stabletransit.com and dns2.stabletransit.com.

The name servers of code-21.com overlap at least partially with those of other domains — among them abbotscrossmedicalpractice.co.uk, allthat.com, gerberaisrael.com and two more.

These name servers commonly appear alongside the name servers ns2.rackspace.com and dns.stabletransit.com.

Three hostnames, each with one IP address: ns.rackspace.com → 69.20.95.4, dns1.stabletransit.com → 69.20.95.4 and dns2.stabletransit.com → 65.61.188.4.

The host names ns.rackspace.com and dns1.stabletransit.com both resolve to 69.20.95.4 IP addresses.

Mail Servers

code-21.com routes its mail through a single mail server, code21-com01b.mail.protection.outlook.com.

code21-com01b.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.149.0, 52.101.149.1 and 52.101.149.9, along with 5 other.