`jsquareengineering.com`

DNSSEC	⚠️ Not signed
A	64.99.64.37^{🇨🇦 TUCOWS64.99.0.0/16 Tucows.com Co}
		PTR	`osrs.systemdns.com`
NS	`ns1.systemdns.com` ⭐
		A	2604:4000:0:d:216:40:47:90^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns1.systemdns.com`
		A	216.40.47.90^{🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0}
			PTR	`ns1.systemdns.com`
NS	`ns2.systemdns.com`
		A	2604:4000:2800:d:64:99:148:16^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`ns2.systemdns.com`
		A	64.98.148.16^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`ns2.systemdns.com`
NS	`ns3.systemdns.com`
		A	2604:4000:0:d:64:99:96:36^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns3.systemdns.com`
		A	64.99.96.36^{🇨🇦 TUCOWS64.99.96.0/24 -BRA-BLK2.7.2}
			PTR	`ns3.systemdns.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			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`⁽⁵⁰⁾
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.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`
TXT	`v=spf1 include:zohomail.com ~all`
SOA	`ns1.systemdns.com`hostmaster@systemdns.com serial=1760031182

`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=1775977587

Same first word

jsquareengineering.com

DNS History

11 records (7 active, 4 former)

●NSns1.systemdns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

●NSns2.systemdns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

●NSns3.systemdns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

○NSns63.domaincontrol.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 17:47:22
○ 2018-01-09 22:27:36
○ 2026-04-12 07:19:42

○NSns64.domaincontrol.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 17:47:22
○ 2018-01-09 22:27:36
○ 2026-04-12 07:19:42

○MXmail.jsquareengineering.com2016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 17:47:22
○ 2018-01-09 22:27:36
○ 2026-04-12 07:19:42

●MXmx.zoho.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

●MXmx2.zoho.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

●MXmx3.zoho.com2026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

○A166.62.28.1052016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 17:47:22
○ 2018-01-09 22:27:36
○ 2026-04-12 07:19:42

●A64.99.64.372026-04-12 → 2026-04-12 · 2 obs

○ 2018-01-09 22:27:36
● 2026-04-12 07:19:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
jsquareengineering.com	ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com	6 records

✅ Authoritative Response

Server:64.98.148.16

NS records: ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jsquareengineering.com (unsigned zone)

⏱️ Timing

Total: 185ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`64.99.64.37`
NS	3	`ns3.systemdns.com, ns2.systemdns.com...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	1	`v=spf1 include:zohomail.com ~all`
SOA	1	`ns1.systemdns.com hostmaster.systemdns.c`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.systemdns.com, ns1.systemdns.com, ns2.systemdns.com...)

Analysis

IP Addresses

jsquareengineering.com points to IP number 64.99.64.37.

For instance, other host names m.seti.com, seeingsanfrancisco.com, cosmost.ca, expressing.com and polarsd.com share IP numbers with jsquareengineering.com.

Name Servers

The delegation for jsquareengineering.com is handled by three name servers: ns1.systemdns.com, ns2.systemdns.com and ns3.systemdns.com.

jsquareengineering.com shares name servers with other domains at least partially, for example fairseas.net, iamlagos.com, hasler-matlik.de, leilao.info and ottogross.org.

Host names with two IPs:

ns1.systemdns.com points to 2604:4000:0:d:216:40:47:90 and 216.40.47.90

ns2.systemdns.com points to 2604:4000:2800:d:64:99:148:16 and 64.98.148.16

ns3.systemdns.com points to 2604:4000:0:d:64:99:96:36 and 64.99.96.36

Mail Servers

jsquareengineering.com is served by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

jsquareengineering.com shares mail servers with other domains at least partially; for instance repoleved.com, openbox.pt, tacticallimit.net, netrosol.com and runrobot.co.