`ciscolearning.us`

DNSSEC	⚠️ Not signed
A	203.27.227.220^{🇦🇺 Amazon203.27.227.0/24 Arq Group Enterprise Pty Ltd Level 10, 505 Little Collins Street}
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns2.markmonitor.com` ⚠️ Not in parent delegation
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns4.markmonitor.com` ⚠️ Not in parent delegation
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
NS	`ns5.markmonitor.com` ⚠️ Not in parent delegation
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
NS	`ns6.markmonitor.com` ⚠️ Not in parent delegation
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com` ⚠️ Not in parent delegation
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2019-01-18 #1

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1775273791

Same first word

ciscolearning.us

ciscolearning.info

DNS History

12 records (8 active, 4 former)

○NSa4.nstld.com2015-08-22 → 2017-03-15 · 4 obs

● 2015-08-22 17:11:06
● 2017-03-15 19:30:06
○ 2019-12-22 20:39:18
○ 2026-04-04 04:13:46

○NSf4.nstld.com2015-08-22 → 2017-03-15 · 4 obs

● 2015-08-22 17:11:06
● 2017-03-15 19:30:06
○ 2019-12-22 20:39:18
○ 2026-04-04 04:13:46

○NSg4.nstld.com2015-08-22 → 2017-03-15 · 4 obs

● 2015-08-22 17:11:06
● 2017-03-15 19:30:06
○ 2019-12-22 20:39:18
○ 2026-04-04 04:13:46

○NSl4.nstld.com2015-08-22 → 2017-03-15 · 4 obs

● 2015-08-22 17:11:06
● 2017-03-15 19:30:06
○ 2019-12-22 20:39:18
○ 2026-04-04 04:13:46

●NSns1.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns2.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns3.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns4.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns5.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns6.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●NSns7.markmonitor.com2019-12-22 → 2026-04-04 · 3 obs

○ 2017-03-15 19:30:06
● 2019-12-22 20:39:18
● 2026-04-04 04:13:46

●A203.27.227.2202015-08-22 → 2026-04-04 · 2 obs

● 2015-08-22 17:11:06
● 2026-04-04 04:13:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
ciscolearning.us	ns3.markmonitor.com, ns1.markmonitor.com	-

✅ Authoritative Response

Server:149.112.160.1

NS records: ns3.markmonitor.com, ns1.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ciscolearning.us (unsigned zone)

⏱️ Timing

Total: 646ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.27.227.220`
NS	7	`ns3.markmonitor.com, ns6.markmonitor.com...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

Analysis

IP Addresses

ciscolearning.us points to IP number 203.27.227.220.

For instance, other host names mybankatlantic.info, cnpnet.net, bbtstudentvisagoldcard.info, cnpnet.fr and relaystarpartner.org share IP numbers with ciscolearning.us.

Name Servers

ciscolearning.us is delegated to seven name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

ciscolearning.us shares name servers with other domains at least partially, for example trepezi.com, ebay.video, toshiba-europe.de, smschannel.org and everythinggirlstore.net.

Host names with two IP numbers:

ns1.markmonitor.com points to 2620:10a:80a8::1 and 149.112.160.1.

ns2.markmonitor.com points to 2001:67c:10b8::1 and 176.97.158.1.

ns3.markmonitor.com points to 2620:10a:80a9::1 and 149.112.161.1.

ns4.markmonitor.com points to 2001:67c:1bc::1 and 192.174.68.1.

ns5.markmonitor.com points to 2620:10a:80a8::2 and 149.112.160.2.

ns6.markmonitor.com points to 2001:67c:10b8::3 and 176.97.158.3.

ns7.markmonitor.com points to 2620:10a:80a9::2 and 149.112.161.2.

ciscolearning.us - robtex.com