smarthinking.com - dns.ninja

`smarthinking.com`

DNSSEC	⚠️ Not signed
A	34.251.222.41^{🇮🇪 Amazon34.248.0.0/13 EC2 DUB prefix}
		PTR	`ec2-34-251-222-41.eu-west-1.compute.amazonaws.com`
A	52.49.20.165^{🇮🇪 Amazon52.48.0.0/14 EC2 DUB prefix}
A	52.49.158.101^{🇮🇪 Amazon52.48.0.0/14 EC2 DUB prefix}
NS	`dns-amer-2.ptns.pearson.com` ⭐ ⚠️ Not in parent delegation
		A	159.182.12.40^{🇺🇸 PEARSON-NA159.182.12.0/24 NCS Pearson Inc.}
			PTR	`dns-amer-2.ptns.pearson.com`
NS	`dns-apac-1.ptns.pearson.com` ⚠️ Not in parent delegation
		A	159.182.67.40^{🇺🇸 PEARSON-APAC159.182.67.0/24 Pearson Group}
			PTR	`dns-apac-1.ptns.pearson.com`
NS	`dns-emea-1.ptns.pearson.com` ⚠️ Not in parent delegation
		A	159.182.79.40^{🇺🇸 PEARSON-EMEA159.182.79.0/24 Pearson Group}
			PTR	`dns-emea-1.ptns.pearson.com`
NS	`ns1.pearson.com` ⚠️ Not in zone NS records
		A	168.146.112.10^{🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.}
			PTR	`ns1.pearson.com`
NS	`ns2.pearson.com` ⚠️ Not in zone NS records
		A	168.146.112.11^{🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.}
			PTR	`ns2.pearson.com`
MX	`smarthinking-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c803::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:c922::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr05cu00501.inbound.protection.outlook.com`
		A	2a01:111:f403:f802::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f90f::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr04cu00100.inbound.protection.outlook.com`
		A	52.101.10.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr04cu00105.inbound.protection.outlook.com`
		A	52.101.41.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01406.inbound.protection.outlook.com`
		A	52.101.42.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr04cu00106.inbound.protection.outlook.com`
		A	52.101.42.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00302.inbound.protection.outlook.com`
TXT	`MS=ms12712161`
TXT	`v=spf1 include:_spf.smarthinking_com._d.easydmarc.pro ~all`
TXT	`google-site-verification=W3BBzn0p32ALDIhFG6L2TUfmwZOI7Rtox4rRqT_uxwE`
SOA	`dns-amer-2.ptns.pearson.com`gns-dnsoperations@pearson.com serial=165

`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=1782844716

WOT: SAFE (80/100)

Subdomains

www.smarthinking.com

Same first word

smarthinking.com

smarthinking.net

DNS History

37 records (9 active, 28 former)

●NSdns-amer-2.ptns.pearson.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

●NSdns-apac-1.ptns.pearson.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

●NSdns-emea-1.ptns.pearson.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

○NSdns1.cscdns.net2015-08-03 → 2016-02-25 · 4 obs

● 2015-08-03 21:53:46
● 2016-02-25 12:17:06
○ 2016-06-20 10:08:20
○ 2026-06-30 18:46:26

○NSdns2.cscdns.net2015-08-03 → 2016-02-25 · 4 obs

● 2015-08-03 21:53:46
● 2016-02-25 12:17:06
○ 2016-06-20 10:08:20
○ 2026-06-30 18:46:26

○NSns01.pearson.com2016-06-20 → 2017-09-05 · 5 obs

○ 2016-02-25 12:17:06
● 2016-06-20 10:08:20
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

○NSns02.pearson.com2016-06-20 → 2017-09-05 · 5 obs

○ 2016-02-25 12:17:06
● 2016-06-20 10:08:20
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

○NSns03.pearson.com2016-06-20 → 2017-09-05 · 5 obs

○ 2016-02-25 12:17:06
● 2016-06-20 10:08:20
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

○NSns04.pearson.com2016-06-20 → 2017-09-05 · 5 obs

○ 2016-02-25 12:17:06
● 2016-06-20 10:08:20
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

●NSns1.pearson.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

●NSns2.pearson.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

○MXmxa-000e6001.gslb.pphosted.com2015-08-03 → 2017-09-05 · 4 obs

● 2015-08-03 21:53:46
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

○MXmxb-000e6001.gslb.pphosted.com2015-08-03 → 2017-09-05 · 4 obs

● 2015-08-03 21:53:46
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

●MXsmarthinking-com.mail.protection.outlook.com2026-03-04 → 2026-06-30 · 3 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-06-30 18:46:26

○A108.128.151.372026-05-23 → 2026-05-24 · 5 obs

○ 2026-05-18 17:11:52
● 2026-05-23 11:23:24
● 2026-05-24 06:04:06
○ 2026-06-02 15:46:18
○ 2026-06-30 18:46:26

○A159.182.31.512016-06-20 → 2017-09-05 · 5 obs

○ 2016-02-25 12:17:06
● 2016-06-20 10:08:20
● 2017-09-05 23:52:56
○ 2026-03-04 01:39:42
○ 2026-06-30 18:46:26

○A34.242.131.142026-05-23 → 2026-05-24 · 5 obs

○ 2026-05-18 17:11:52
● 2026-05-23 11:23:24
● 2026-05-24 06:04:06
○ 2026-06-02 15:46:18
○ 2026-06-30 18:46:26

○A34.246.144.1852026-03-04 → 2026-05-18 · 5 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-05-18 17:11:52
○ 2026-05-23 11:23:24
○ 2026-06-30 18:46:26

●A34.251.222.412026-06-29 → 2026-06-30 · 3 obs

○ 2026-06-26 21:07:50
● 2026-06-29 20:31:18
● 2026-06-30 18:46:26

○A34.252.80.292026-06-02 → 2026-06-02 · 4 obs

○ 2026-05-24 06:04:06
● 2026-06-02 15:46:18
○ 2026-06-23 16:47:34
○ 2026-06-30 18:46:26

○A34.254.36.982026-06-23 → 2026-06-23 · 4 obs

○ 2026-06-02 15:46:18
● 2026-06-23 16:47:34
○ 2026-06-25 05:53:08
○ 2026-06-30 18:46:26

○A34.255.171.2002026-06-26 → 2026-06-26 · 4 obs

○ 2026-06-25 05:53:08
● 2026-06-26 21:07:50
○ 2026-06-29 20:31:18
○ 2026-06-30 18:46:26

○A52.19.229.2522026-06-02 → 2026-06-02 · 4 obs

○ 2026-05-24 06:04:06
● 2026-06-02 15:46:18
○ 2026-06-23 16:47:34
○ 2026-06-30 18:46:26

○A52.210.248.1862026-06-25 → 2026-06-25 · 4 obs

○ 2026-06-23 16:47:34
● 2026-06-25 05:53:08
○ 2026-06-26 21:07:50
○ 2026-06-30 18:46:26

○A52.212.141.1062026-06-02 → 2026-06-02 · 4 obs

○ 2026-05-24 06:04:06
● 2026-06-02 15:46:18
○ 2026-06-23 16:47:34
○ 2026-06-30 18:46:26

○A52.213.146.132026-06-26 → 2026-06-26 · 4 obs

○ 2026-06-25 05:53:08
● 2026-06-26 21:07:50
○ 2026-06-29 20:31:18
○ 2026-06-30 18:46:26

○A52.214.237.2482026-06-23 → 2026-06-23 · 4 obs

○ 2026-06-02 15:46:18
● 2026-06-23 16:47:34
○ 2026-06-25 05:53:08
○ 2026-06-30 18:46:26

○A52.30.227.852026-06-26 → 2026-06-26 · 4 obs

○ 2026-06-25 05:53:08
● 2026-06-26 21:07:50
○ 2026-06-29 20:31:18
○ 2026-06-30 18:46:26

○A52.31.82.442026-05-23 → 2026-05-24 · 5 obs

○ 2026-05-18 17:11:52
● 2026-05-23 11:23:24
● 2026-05-24 06:04:06
○ 2026-06-02 15:46:18
○ 2026-06-30 18:46:26

●A52.49.158.1012026-06-29 → 2026-06-30 · 3 obs

○ 2026-06-26 21:07:50
● 2026-06-29 20:31:18
● 2026-06-30 18:46:26

●A52.49.20.1652026-06-29 → 2026-06-30 · 3 obs

○ 2026-06-26 21:07:50
● 2026-06-29 20:31:18
● 2026-06-30 18:46:26

○A52.50.55.302026-06-23 → 2026-06-23 · 4 obs

○ 2026-06-02 15:46:18
● 2026-06-23 16:47:34
○ 2026-06-25 05:53:08
○ 2026-06-30 18:46:26

○A52.51.131.592026-03-04 → 2026-05-18 · 5 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-05-18 17:11:52
○ 2026-05-23 11:23:24
○ 2026-06-30 18:46:26

○A54.217.126.2442026-06-25 → 2026-06-25 · 4 obs

○ 2026-06-23 16:47:34
● 2026-06-25 05:53:08
○ 2026-06-26 21:07:50
○ 2026-06-30 18:46:26

○A54.217.202.2522026-06-25 → 2026-06-25 · 4 obs

○ 2026-06-23 16:47:34
● 2026-06-25 05:53:08
○ 2026-06-26 21:07:50
○ 2026-06-30 18:46:26

○A63.35.23.1312026-03-04 → 2026-05-18 · 5 obs

○ 2017-09-05 23:52:56
● 2026-03-04 01:39:42
● 2026-05-18 17:11:52
○ 2026-05-23 11:23:24
○ 2026-06-30 18:46:26

○A67.59.166.912015-08-03 → 2016-02-25 · 4 obs

● 2015-08-03 21:53:46
● 2016-02-25 12:17:06
○ 2016-06-20 10:08:20
○ 2026-06-30 18:46:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net...	-
smarthinking.com	ns2.pearson.com, ns1.pearson.com	2 records

✅ Authoritative Response

Server:168.146.112.11

NS records: ns2.pearson.com, ns1.pearson.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smarthinking.com (unsigned zone)

⏱️ Timing

Total: 329ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`52.49.20.165, 34.251.222.41...`
NS	3	`dns-emea-1.ptns.pearson.com, dns-apac-1.ptns.pearson.com...`
MX	1	`smarthinking-com.mail.protection.outlook`
TXT	3	`google-site-verification=W3BBzn0p32ALDIh, MS=ms12712161...`
SOA	1	`dns-amer-2.ptns.pearson.com gns-dnsopera`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.pearson.com, ns1.pearson.com)

Analysis

Hierarchy

www.smarthinking.com is a subdomain of smarthinking.com.

IP Addresses

smarthinking.com has three IP addresses: 34.251.222.41, 52.49.20.165 and 52.49.158.101.

Additional host names — pearsonbusinessschool.ac.uk, michiganconnectionsacademy.com, myspeechlab.com and two others — share IP numbers with smarthinking.com.

Name Servers

Delegation for smarthinking.com is to five name servers: ns1.pearson.com, ns2.pearson.com, dns-amer-2.ptns.pearson.com and two others.

The name servers of smarthinking.com overlap at least partially with those of other domains — among them edtpa.com, helloq.cl, texascalledelalectura.com and two more.

These name servers commonly appear alongside the name servers dns-apac-1.ptns.pearson.com and dns-emea-1.ptns.pearson.com.

Host names pointing to a single IP address:

ns1.pearson.com points to 168.146.112.10.

ns2.pearson.com points to 168.146.112.11.

dns-amer-2.ptns.pearson.com points to 159.182.12.40.

dns-apac-1.ptns.pearson.com points to 159.182.67.40.

dns-emea-1.ptns.pearson.com points to 159.182.79.40.

Mail Servers

smarthinking.com has one mail server: smarthinking-com.mail.protection.outlook.com.

smarthinking-com.mail.protection.outlook.com points to 8 IP numbers: 52.101.10.5, 52.101.41.6, 52.101.42.14 and 5 other.