learningco.com - dns.ninja

`learningco.com`

DNSSEC	⚠️ Not signed
A	34.233.207.170^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
		PTR	`ec2-34-233-207-170.compute-1.amazonaws.com`
A	44.197.255.113^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
A	54.226.10.143^{🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix}
NS	`ns-19.awsdns-02.com` ⭐
		A	2600:9000:5300:1300::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-19.awsdns-02.com`
		A	205.251.192.19^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-19.awsdns-02.com`
NS	`ns-1097.awsdns-09.org`
		A	2600:9000:5304:4900::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1097.awsdns-09.org`
		A	205.251.196.73^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1097.awsdns-09.org`
NS	`ns-1869.awsdns-41.co.uk`
		A	2600:9000:5307:4d00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1869.awsdns-41.co.uk`
		A	205.251.199.77^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1869.awsdns-41.co.uk`
NS	`ns-830.awsdns-39.net`
		A	2600:9000:5303:3e00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-830.awsdns-39.net`
		A	205.251.195.62^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-830.awsdns-39.net`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`MS=ms95211825`
TXT	`ciscocidomainverification=43410baefb9905552cef65fddcc52b34c0322876ff391007c0e...`
TXT	`google-site-verification=9xAnKLlO-n0fb9ivg6304GUrAOYJzqF00f9NzD0YqwU`
TXT	`google-site-verification=y-T5fCrnGirzCAySnqE6nPRt8Y1tKCJnbc9CfuKKjjw`
SOA	`ns-19.awsdns-02.com`awsdns-hostmaster@amazon.com serial=1

`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=1782079280

Subdomains

www.learningco.com

Same first word

learningco.com

Similar names

DNS History

50 records (9 active, 41 former)

●NSns-1097.awsdns-09.org2026-02-15 → 2026-06-21 · 3 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-06-21 22:27:10

●NSns-1869.awsdns-41.co.uk2026-02-15 → 2026-06-21 · 3 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-06-21 22:27:10

●NSns-19.awsdns-02.com2026-02-15 → 2026-06-21 · 3 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-06-21 22:27:10

●NSns-830.awsdns-39.net2026-02-15 → 2026-06-21 · 3 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-06-21 22:27:10

○NSns1.hmco.com2015-08-10 → 2016-01-27 · 4 obs

● 2015-08-10 15:58:10
● 2016-01-27 06:36:52
○ 2016-01-29 10:23:04
○ 2026-06-21 22:27:10

○NSns5.hmco.com2015-08-10 → 2017-10-13 · 4 obs

● 2015-08-10 15:58:10
● 2017-10-13 06:35:36
○ 2026-02-15 04:04:08
○ 2026-06-21 22:27:10

○NSns6.hmco.com2015-08-10 → 2017-10-13 · 4 obs

● 2015-08-10 15:58:10
● 2017-10-13 06:35:36
○ 2026-02-15 04:04:08
○ 2026-06-21 22:27:10

○NSns7.hmco.com2015-08-10 → 2017-10-13 · 4 obs

● 2015-08-10 15:58:10
● 2017-10-13 06:35:36
○ 2026-02-15 04:04:08
○ 2026-06-21 22:27:10

●MXus-smtp-inbound-1.mimecast.com2015-08-10 → 2026-06-21 · 2 obs

● 2015-08-10 15:58:10
● 2026-06-21 22:27:10

●MXus-smtp-inbound-2.mimecast.com2015-08-10 → 2026-06-21 · 2 obs

● 2015-08-10 15:58:10
● 2026-06-21 22:27:10

○A100.24.211.52026-04-23 → 2026-05-05 · 5 obs

○ 2026-04-19 08:43:40
● 2026-04-23 16:27:44
● 2026-05-05 10:32:40
○ 2026-05-07 10:51:14
○ 2026-06-21 22:27:10

○A100.25.149.102026-04-16 → 2026-04-23 · 5 obs

○ 2026-04-12 08:00:14
● 2026-04-16 08:59:10
● 2026-04-23 16:27:44
○ 2026-04-25 21:55:32
○ 2026-06-21 22:27:10

○A100.50.91.1782026-06-08 → 2026-06-16 · 5 obs

○ 2026-06-02 16:26:16
● 2026-06-08 16:12:24
● 2026-06-16 07:16:48
○ 2026-06-21 22:27:06
○ 2026-06-21 22:27:10

○A13.219.112.2512026-04-26 → 2026-04-30 · 5 obs

○ 2026-04-25 21:55:32
● 2026-04-26 09:49:48
● 2026-04-30 19:05:42
○ 2026-05-03 02:12:46
○ 2026-06-21 22:27:10

○A155.44.218.1202015-08-10 → 2016-01-29 · 4 obs

● 2015-08-10 15:58:10
● 2016-01-29 10:23:04
○ 2016-04-18 23:50:54
○ 2026-06-21 22:27:10

○A18.207.21.1292026-04-25 → 2026-05-09 · 5 obs

○ 2026-04-23 16:27:44
● 2026-04-25 21:55:32
● 2026-05-09 12:02:46
○ 2026-05-12 10:49:28
○ 2026-06-21 22:27:10

○A18.207.34.2202026-05-12 → 2026-05-12 · 4 obs

○ 2026-05-09 12:02:46
● 2026-05-12 10:49:28
○ 2026-05-14 12:37:08
○ 2026-06-21 22:27:10

○A209.235.125.892016-04-18 → 2017-10-13 · 5 obs

○ 2016-01-29 10:23:04
● 2016-04-18 23:50:54
● 2017-10-13 06:35:36
○ 2026-02-15 04:04:08
○ 2026-06-21 22:27:10

○A3.226.81.212026-03-30 → 2026-03-31 · 5 obs

○ 2026-03-23 06:02:26
● 2026-03-30 06:30:58
● 2026-03-31 15:38:46
○ 2026-04-02 06:31:16
○ 2026-06-21 22:27:10

○A32.194.4.2352026-04-12 → 2026-04-19 · 5 obs

○ 2026-04-10 07:52:02
● 2026-04-12 08:00:14
● 2026-04-19 08:43:40
○ 2026-04-23 16:27:44
○ 2026-06-21 22:27:10

○A32.199.150.1222026-06-02 → 2026-06-02 · 4 obs

○ 2026-05-30 01:23:38
● 2026-06-02 16:26:16
○ 2026-06-08 16:12:24
○ 2026-06-21 22:27:10

○A34.196.91.302026-05-03 → 2026-05-05 · 5 obs

○ 2026-04-30 19:05:42
● 2026-05-03 02:12:46
● 2026-05-05 10:32:40
○ 2026-05-07 10:51:14
○ 2026-06-21 22:27:10

○A34.197.4.1402026-02-15 → 2026-03-02 · 5 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-03-02 04:30:06
○ 2026-03-04 04:35:24
○ 2026-06-21 22:27:10

○A34.225.248.152026-03-21 → 2026-03-23 · 5 obs

○ 2026-03-18 05:05:52
● 2026-03-21 05:13:40
● 2026-03-23 06:02:26
○ 2026-03-30 06:30:58
○ 2026-06-21 22:27:10

○A34.231.98.2082026-03-18 → 2026-03-23 · 5 obs

○ 2026-03-16 04:42:28
● 2026-03-18 05:05:52
● 2026-03-23 06:02:26
○ 2026-03-30 06:30:58
○ 2026-06-21 22:27:10

●A34.233.207.1702026-06-16 → 2026-06-21 · 3 obs

○ 2026-06-12 05:35:46
● 2026-06-16 07:16:48
● 2026-06-21 22:27:10

○A44.196.114.1742026-03-18 → 2026-03-23 · 5 obs

○ 2026-03-16 04:42:28
● 2026-03-18 05:05:52
● 2026-03-23 06:02:26
○ 2026-03-30 06:30:58
○ 2026-06-21 22:27:10

●A44.197.255.1132026-06-21 → 2026-06-21 · 3 obs

○ 2026-06-16 07:16:48
● 2026-06-21 22:27:06
● 2026-06-21 22:27:10

○A44.205.171.842026-06-08 → 2026-06-12 · 5 obs

○ 2026-06-02 16:26:16
● 2026-06-08 16:12:24
● 2026-06-12 05:35:46
○ 2026-06-16 07:16:48
○ 2026-06-21 22:27:10

○A44.206.134.182026-05-28 → 2026-06-02 · 5 obs

○ 2026-05-27 20:09:06
● 2026-05-28 14:05:10
● 2026-06-02 16:26:16
○ 2026-06-08 16:12:24
○ 2026-06-21 22:27:10

○A44.207.18.2322026-05-12 → 2026-05-22 · 5 obs

○ 2026-05-09 12:02:46
● 2026-05-12 10:49:28
● 2026-05-22 12:41:50
○ 2026-05-24 20:13:50
○ 2026-06-21 22:27:10

○A44.215.156.22026-05-17 → 2026-05-27 · 5 obs

○ 2026-05-14 12:37:08
● 2026-05-17 11:35:34
● 2026-05-27 20:09:06
○ 2026-05-28 14:05:10
○ 2026-06-21 22:27:10

○A44.217.104.1642026-05-24 → 2026-06-02 · 5 obs

○ 2026-05-22 12:41:50
● 2026-05-24 20:13:50
● 2026-06-02 16:26:16
○ 2026-06-08 16:12:24
○ 2026-06-21 22:27:10

○A52.202.117.142026-02-15 → 2026-02-26 · 5 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-02-26 05:56:38
○ 2026-03-02 04:30:06
○ 2026-06-21 22:27:10

○A52.22.163.952026-03-02 → 2026-03-16 · 5 obs

○ 2026-02-26 05:56:38
● 2026-03-02 04:30:06
● 2026-03-16 04:42:28
○ 2026-03-18 05:05:52
○ 2026-06-21 22:27:10

○A52.44.54.2052026-04-02 → 2026-04-12 · 5 obs

○ 2026-03-31 15:38:46
● 2026-04-02 06:31:16
● 2026-04-12 08:00:14
○ 2026-04-16 08:59:10
○ 2026-06-21 22:27:10

○A52.72.199.1562026-02-15 → 2026-03-02 · 5 obs

○ 2017-10-13 06:35:36
● 2026-02-15 04:04:08
● 2026-03-02 04:30:06
○ 2026-03-04 04:35:24
○ 2026-06-21 22:27:10

○A52.72.32.1142026-04-16 → 2026-04-25 · 5 obs

○ 2026-04-12 08:00:14
● 2026-04-16 08:59:10
● 2026-04-25 21:55:32
○ 2026-04-26 09:49:48
○ 2026-06-21 22:27:10

○A52.87.60.422026-03-30 → 2026-04-12 · 5 obs

○ 2026-03-23 06:02:26
● 2026-03-30 06:30:58
● 2026-04-12 08:00:14
○ 2026-04-16 08:59:10
○ 2026-06-21 22:27:10

○A54.164.146.1182026-05-14 → 2026-05-14 · 4 obs

○ 2026-05-12 10:49:28
● 2026-05-14 12:37:08
○ 2026-05-17 11:35:34
○ 2026-06-21 22:27:10

○A54.165.197.1952026-02-15 → 2026-06-21 · 2 obs

○ 2026-02-15 04:04:08
○ 2026-06-21 22:27:10

○A54.174.185.1482026-03-04 → 2026-03-18 · 5 obs

○ 2026-03-02 04:30:06
● 2026-03-04 04:35:24
● 2026-03-18 05:05:52
○ 2026-03-21 05:13:40
○ 2026-06-21 22:27:10

○A54.174.46.232026-05-09 → 2026-05-24 · 5 obs

○ 2026-05-07 10:51:14
● 2026-05-09 00:32:18
● 2026-05-24 20:13:50
○ 2026-05-27 20:09:06
○ 2026-06-21 22:27:10

○A54.196.65.992026-06-08 → 2026-06-12 · 5 obs

○ 2026-06-02 16:26:16
● 2026-06-08 16:12:24
● 2026-06-12 05:35:46
○ 2026-06-16 07:16:48
○ 2026-06-21 22:27:10

○A54.198.31.1492026-03-30 → 2026-04-10 · 5 obs

○ 2026-03-23 06:02:26
● 2026-03-30 06:30:58
● 2026-04-10 07:52:02
○ 2026-04-12 08:00:14
○ 2026-06-21 22:27:10

○A54.204.145.1262026-05-07 → 2026-05-09 · 5 obs

○ 2026-05-05 10:32:40
● 2026-05-07 10:51:14
● 2026-05-09 12:02:46
○ 2026-05-12 10:49:28
○ 2026-06-21 22:27:10

○A54.225.41.622026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-05 10:32:40
● 2026-05-07 10:51:14
○ 2026-05-09 00:32:18
○ 2026-06-21 22:27:10

●A54.226.10.1432026-06-16 → 2026-06-21 · 3 obs

○ 2026-06-12 05:35:46
● 2026-06-16 07:16:48
● 2026-06-21 22:27:10

○A54.235.69.532026-03-04 → 2026-03-16 · 5 obs

○ 2026-03-02 04:30:06
● 2026-03-04 04:35:24
● 2026-03-16 04:42:28
○ 2026-03-18 05:05:52
○ 2026-06-21 22:27:10

○A54.88.218.1752026-05-27 → 2026-05-30 · 5 obs

○ 2026-05-24 20:13:50
● 2026-05-27 20:09:06
● 2026-05-30 01:23:38
○ 2026-06-02 16:26:16
○ 2026-06-21 22:27:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
learningco.com	ns-19.awsdns-02.com, ns-830.awsdns-39.net, ns-1097.awsdns-09.org, ns-1869.awsdns-41.co.uk	2 records

✅ Authoritative Response

Server:205.251.195.62

NS records: ns-19.awsdns-02.com, ns-830.awsdns-39.net, ns-1097.awsdns-09.org, ns-1869.awsdns-41.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learningco.com (unsigned zone)

⏱️ Timing

Total: 577ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`54.226.10.143, 44.197.255.113...`
NS	4	`ns-1097.awsdns-09.org, ns-1869.awsdns-41.co.uk...`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 5), us-smtp-inbound-2.mimecast.com (pri: 5)`
TXT	4	`MS=ms95211825, ciscocidomainverification=43410baefb9905...`
SOA	1	`ns-19.awsdns-02.com awsdns-hostmaster.am`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-19.awsdns-02.com, ns-19.awsdns-02.com)

Analysis

Hierarchy

www.learningco.com is delegated beneath learningco.com.

IP Addresses

learningco.com directs to three IP numbers: 34.233.207.170, 44.197.255.113 and 54.226.10.143.

ec2-34-233-207-170.compute-1.amazonaws.com, saxonmath.com, webinars.heinemann.com plus two other host names have IP numbers in common with learningco.com.

Name Servers

Four name servers handle the delegation for learningco.com: ns-19.awsdns-02.com, ns-830.awsdns-39.net, ns-1097.awsdns-09.org and ns-1869.awsdns-41.co.uk.

There is at least partial name server overlap between learningco.com and other domains — grandonfarms.com, awmws.com, apowersoft.cn and two more among them.

The name servers ns-428.awsdns-53.com, ns-722.awsdns-26.net and ns-1043.awsdns-02.org are often found in combination with these name servers.

All four hostnames — ns-19.awsdns-02.com, ns-830.awsdns-39.net, ns-1097.awsdns-09.org and ns-1869.awsdns-41.co.uk — resolve to two IP numbers apiece: ns-19.awsdns-02.com to 205.251.192.19 and 2600:9000:5300:1300::1; ns-830.awsdns-39.net to 205.251.195.62 and 2600:9000:5303:3e00::1; ns-1097.awsdns-09.org to 205.251.196.73 and 2600:9000:5304:4900::1; ns-1869.awsdns-41.co.uk to 205.251.199.77 and 2600:9000:5307:4d00::1.

Mail Servers

learningco.com uses two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

The mail server setup of learningco.com matches that of other domains such as cedriverside.com, interworks.ca, mmgins.com and two others.

At least some of the mail servers used by learningco.com are shared with other domains: powerinlock.com, brodskyorg.com, farpllc.com and two others among them.

Hosts with 6 IP addresses each:

us-smtp-inbound-1.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.

us-smtp-inbound-2.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.242 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.242 IP addresses.