sharpthinking.ca - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`sharpthinking.ca`

DNSSEC	⚠️ Not signed
NS	`freedns1.registrar-servers.com` ⭐
		A	2605:9880:300:1400:101:1650:5e2:54^{🇺🇸 RELIABLESITENET-12605:9880:300::/42 ReliableSite Hosting}
		A	45.58.122.83^{🇺🇸 RELIABLESITENET-145.58.122.0/24 101 Possumtown Rd Piscataway, NJ 08854 United States}
NS	`freedns2.registrar-servers.com`
		A	2604:6600:0:1b::2^{🇺🇸 AS406762604:6600::/32 Psychz Networks}
		A	199.119.202.76^{🇺🇸 AS40676199.119.200.0/21 Psychz Networks}
			PTR	`pdns12.registrar-servers.com`
NS	`freedns3.registrar-servers.com`
		A	2001:bc8:6006:4000:8218:44ff:feef:d720^{🇫🇷 AS128762001:bc8::/32 Scaleway Paris, France}
		A	195.154.94.174^{🇫🇷 AS12876195.154.0.0/16 Scaleway Paris, France}
			PTR	`freedns3.registrar-servers.com`
NS	`freedns4.registrar-servers.com`
		A	2a02:29e0:1:103:103::1^{🇮🇹 ASSEFLOW2a02:29e0:1::/48}
		A	95.141.37.127^{🇮🇹 ASSEFLOW95.141.32.0/20 SeFlow.it Internet Services - wf2 - Milan}
NS	`freedns5.registrar-servers.com`
		A	2001:41d0:700:120f::1^{🇫🇷 OVH2001:41d0::/32 IPv6}
		A	54.36.109.15^{🇩🇪 OVH54.36.0.0/16}
			PTR	`freedns5.registrar-servers.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽³⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zoho.com ~all`
SOA	`freedns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1574168805

`ca`

	DNSSEC	🔒 Signed (DS record present)
	NS	`prd-czp-05.corp.cira.ca` ⭐
	NS	`any.ca-servers.ca`
	NS	`c.ca-servers.ca`
	NS	`d.ca-servers.ca`
	NS	`j.ca-servers.ca`
	SOA	`prd-czp-05.corp.cira.ca`admin-dns@cira.ca serial=2610091200

Same first word

sharpthinking.co.nz

sharpthinking.com

sharpthinking.org

sharpthinking.ca

sharpthinking.net

Similar names

thinkingsharp.com

thinkingsharp.co.uk

Previous names

Next names

DNS History

12 records (8 active, 4 former)

●NSfreedns1.registrar-servers.com2026-09-19 → 2026-10-09 · 3 obs

○ 2017-06-08 11:19:38
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

●NSfreedns2.registrar-servers.com2026-09-19 → 2026-10-09 · 3 obs

○ 2017-06-08 11:19:38
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

●NSfreedns3.registrar-servers.com2026-09-19 → 2026-10-09 · 3 obs

○ 2017-06-08 11:19:38
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

●NSfreedns4.registrar-servers.com2026-09-19 → 2026-10-09 · 3 obs

○ 2017-06-08 11:19:38
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

●NSfreedns5.registrar-servers.com2026-09-19 → 2026-10-09 · 3 obs

○ 2017-06-08 11:19:38
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

○NSns1.netfirms.com2015-10-19 → 2017-06-08 · 4 obs

● 2015-10-19 00:25:58
● 2017-06-08 11:19:38
○ 2026-09-19 15:15:28
○ 2026-10-09 12:56:50

○NSns2.netfirms.com2015-10-19 → 2017-06-08 · 4 obs

● 2015-10-19 00:25:58
● 2017-06-08 11:19:38
○ 2026-09-19 15:15:28
○ 2026-10-09 12:56:50

○MXmx.sharpthinking.ca2015-10-19 → 2016-04-10 · 4 obs

● 2015-10-19 00:25:58
● 2016-04-10 12:11:48
○ 2016-11-28 15:43:40
○ 2026-10-09 12:56:50

●MXmx.zoho.com2016-11-28 → 2026-10-09 · 3 obs

○ 2016-04-10 12:11:48
● 2016-11-28 15:43:40
● 2026-10-09 12:56:50

●MXmx2.zoho.com2016-11-28 → 2026-10-09 · 3 obs

○ 2016-04-10 12:11:48
● 2016-11-28 15:43:40
● 2026-10-09 12:56:50

●MXmx3.zoho.com2026-09-19 → 2026-10-09 · 3 obs

○ 2016-11-28 15:43:40
● 2026-09-19 15:15:28
● 2026-10-09 12:56:50

○A66.96.160.1292015-10-19 → 2017-06-08 · 4 obs

● 2015-10-19 00:25:58
● 2017-06-08 11:19:38
○ 2026-09-19 15:15:28
○ 2026-10-09 12:56:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ca	c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca	-
sharpthinking.ca	freedns2.registrar-servers.com, freedns3.registrar-servers.com, freedns4.registrar-servers.com, freedns5.registrar-servers.com...	-

✅ Authoritative Response

Server:195.154.94.174

NS records: freedns2.registrar-servers.com, freedns3.registrar-servers.com, freedns4.registrar-servers.com, freedns5.registrar-servers.com, freedns1.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sharpthinking.ca (unsigned zone)

⏱️ Timing

Total: 1090ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	5	`freedns3.registrar-servers.com, freedns2.registrar-servers.com...`
MX	3	`mx3.zoho.com (pri: 30), mx2.zoho.com (pri: 20)...`
TXT	1	`v=spf1 include:zoho.com ~all`
SOA	1	`freedns1.registrar-servers.com hostmaste`

Analysis

Name Servers

Delegation for sharpthinking.ca is to five name servers: freedns1.registrar-servers.com, freedns2.registrar-servers.com, freedns3.registrar-servers.com and two others.

The name servers of sharpthinking.ca overlap at least partially with those of other domains — among them agami.at, mmautotraders.lk, wovenlines.com and two more.

These name servers commonly appear alongside the name servers freedns4.registrar-servers.com and freedns5.registrar-servers.com.

Host names with two IP numbers:

freedns1.registrar-servers.com maps to two IP addresses — 45.58.122.83 and 2605:9880:300:1400:101:1650:5e2:54.

freedns2.registrar-servers.com maps to two IP addresses — 199.119.202.76 and 2604:6600:0:1b::2.

freedns3.registrar-servers.com maps to two IP addresses — 195.154.94.174 and 2001:bc8:6006:4000:8218:44ff:feef:d720.

freedns4.registrar-servers.com maps to two IP addresses — 95.141.37.127 and 2a02:29e0:1:103:103::1.

freedns5.registrar-servers.com maps to two IP addresses — 54.36.109.15 and 2001:41d0:700:120f::1.

Mail Servers

Mail for sharpthinking.ca is routed through three mail servers — mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

sharpthinking.ca shares mail servers — at least in part — with other domains, including bigaccessprimeltd.com, centelixlogic.com, datahealthassociates.com and two others.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com all resolve to 136.143.191.44, with each host carrying exactly one IP address.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com are host names that all point to 136.143.191.44.